[PHP] Re: Mail() not working
Robin Wilson wrote: Hi I get the following error message: Fatal error: Call to undefined function: mail() in /srv/www/htdocs/blog/serendipity_functions.inc.php on line 1394 I have changed my php.ini file to find the correct path to sendmail and to put an option on the end (-f [EMAIL PROTECTED]) to make the mail come from me, not from my linux system (otherwise my ISPs smtp server doesn't accept it). Sending mail works fine with the command line mail command. What should I do to make this work? Thanks Robin --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.732 / Virus Database: 486 - Release Date: 29/07/04 enable the function in php.ini :) There's this small setting somewhere around there that prevents the use of certain functions, and you probably configured it to prevent the use of mail(). -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] db transactions across multiple pages...
you could write such a thing, in php, yourself aswell... wouldn't be that hard :) - Tul Bruce wrote: yeah... i saw that write up. i've also inquired with bugs.mysql as to if/whether this might be reinserted.. we'll see. that said, it appears that there would need to be an approach similar to the apache::dbi mod for perl, where you have an app that essentially does connection pooling. in this model, an intermediate app becomes the app that has the connection with the mysql server, and never shuts down. the web app would 'talk' to the intermediate app to get the connection id/handle, ensuring that the web app could get the same handle for all subsequent mysql interaction on the pages of the web app ie +<--->app1+ | v mysql<--- pool app | ^ +<--->app2+ in this case app1/app2 are both web apps running on apache app1/app2 would talk to the 'pool app' to get the initial mysql db 'handle'. the handle is stored/maintained for the life of the client web app. once the pool app gets the handle, the web app fetches the handle at the start of every page that has to perform db functions with mysql. subsequent db functions for the page are then performed between the web app and mysql, using the handle provided by the pool app that's the theory, not sure how it would work, or what other issues would be. but if it did work, it could be extended to support any given web app/server that needed to be able to maintain the connection with the db over multiple pages... -bruce -Original Message- From: Jim Grill [mailto:[EMAIL PROTECTED] Sent: Friday, July 30, 2004 10:48 PM To: [EMAIL PROTECTED]; 'John Nichel'; [EMAIL PROTECTED] Subject: Re: [PHP] db transactions across multiple pages... It's my understanding that persistent connections via the old ext/mysql was a flawed misfeature to begin with. This was one of several misfeatrures corrected by the new mysqli extension. There is some information on the subject here: http://www.zend.com/php5/articles/php5-mysqli.php It would be my guess that pconnect will be a thing of the past. It's sort of a drag, but running out of connections - as pconnect can cause - is a real drag too. ;) Jim Grill Web-1 Hosting http://www.web-1hosting.net - Original Message - From: "bruce" <[EMAIL PROTECTED]> To: "'John Nichel'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Saturday, July 31, 2004 12:10 AM Subject: RE: [PHP] db transactions across multiple pages... you also won't see the mysqli pconnect function... which tells me that at least for now, it's not there... -bruce -Original Message- From: John Nichel [mailto:[EMAIL PROTECTED] Sent: Friday, July 30, 2004 8:44 PM To: [EMAIL PROTECTED] Subject: Re: [PHP] db transactions across multiple pages... bruce wrote: not sure if it's php/mysqli... but if you check the php.net for the "mysqli" not "mysql" functions... you won't see the persistent attribute listed for the php.ini attributes... I wouldn't worry too much about that though. I mean if persistant connections are required for transactions, I'm sure it will be there. The only reason we may not be seeing it now is because the PHP5 documentation is full of holes (with it not being a production release yet). I know of a few items that are available in PHP5 that aren't documented on php.net yet. -- By-Tor.com It's all about the Rush http://www.by-tor.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP5 exception handling
Matthew Weier O'Phinney wrote:
* Curt Zirzow <[EMAIL PROTECTED]>:
* Thus wrote Matthew Weier O'Phinney:
The problem I'm running into: what do I pass as arguments to catch()?
The articles on ZE2 use something like: catch (Exception $e) {}, or
something like catch(MyException $e) (where MyException is a class they
defined in their examples). Is the 'Exception' class a base
class/handler with PHP5? Do I need to create my own exception handler
classes? Do I even need to catch objects of a specific type, or can I
simply do:
catch ($error) {
do something with $error
}
At minimum you should always at least catch the Exception class:
catch (Exception $e) { }
So, the Exception class is in the PHP5 distribution, then? Do I need to
include/require it, or is it implicit in simply running PHP5?
class foo {
function myException() {
throw new MyException('Exception thrown');
}
function standardException() {
throw new Exception();
}
}
$f = new foo();
try {
$f->myException();
}
catch (MyException $e) {
echo "Caught my exception\n", $e;
$e->customFunction();
}
catch (Exception $e) {
echo "Default Exception caught\n", $e;
}
try {
$f->standardException();
}
catch (MyException $e) {
echo "Caught my exception\n", $e;
$e->customFunction();
}
catch (Exception $e) {
echo "Default Exception caught\n", $e;
}
Next question: do I have to 'throw' an error for it to be caught? Again,
coming from perl, if I try to eval something and it fails, I don't have
to throw in error -- if one occurs, I catch it with the 'if ($@)'
construct. Is 'catch (Exception $e)' equivalent? i.e., if an error
occurs in a try block that isn't specifically thrown, will that
construct catch it?
evals don't throw errors as far as I know, unless you throw it yourself
from within the eval. The few internal functions that do throw
exceptions can be caught using the catch(Exception $e) method, if you
want to MAKE something throw an exception, then you need to explicitly
tell it to THROW. Remember though, this is not an error-mechanism! It's
exceptions... Errors are returned the standard way, and can be handled
using error_handlers (http://www.php.net/manual/en/ref.errorfunc.php)
Hope that helped,
- Tul
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[PHP] Re: HTML Table display based upon field contents
Robb Kerr wrote:
On Sat, 24 Jul 2004 23:23:49 +0200, Tularis wrote:
Robb Kerr wrote:
I have a complicated table that needs to be altered depending upon the
contents of a field in one of my recordsets. I've tried several approaches
and need to know what you recommend.
I've created three totally different tables and put the HTML code for each
into a database. Then I used PHP to insert the relevant code into the page
depending upon the contents of a field in a different database. Result -
the appropriate code is inserted properly into the HTML. Problem - the HTML
table I'm trying to insert contains PHP code which is not executed after
being inserted.
Because sometimes the HTML table needs 4 rows and other times only 2, I
tried enclosing the appropriate s in a PHP IF statement (see below).
Problem - PHP IF wasn't executed, both s embedded appeared on page
anyway. And, sometimes, the relevant s will include PHP code so this
embedding technique won't work.
Should I simply describe the entire relevant s on one line,
appropriately escape them, assign the to a variable and then use an ECHO to
put them on the page? Or does someone have a simpler more elegant solution?
Thanx
just use eval() on that string, it's not elegant, nor is it really
secure, but it'll work fine.
This sounds like exactly what I need. But, can you help me with the synatx?
I've read the entry in the PHP documentation and I don't completely
understand. Let's assume all of the code to define the HTML table
(including appropriate PHP) is stored in a database table called
FooterTable. The field containing the code is called FooterField.
Do I first need to assign the field to a variable via the eval()...
$vFooterText = eval(FooterTable['FooterField']);
echo $vFooterText;
or does the eval statement automatically include the ECHO...
eval(FooterTable['FooterField']);
or do I have to read the contents into a variable first, then eval(), then
echo...
$vFooterText = FooterTable['FooterField'];
eval($vFooterText);
echo $vFooterText;
once you get the code you posted a few lines up out of the database it
usually already resides in a variable. eg. $footertable['FooterField'].
What eval() does is take a string and just "imagine" it is actually an
included piece of PHP. If this helps you, you could imagine the eval
string as follows:
-
// write the string contents to a new php file
$stream = fopen('tmpfile.php', 'w+');
fwrite($stream, $string, strlen($string));
fclose($stream)
include 'tmpfile.php'; // include it, seems obvious...
unlink('tmpfile.php'); // remove the file again
This means that if you pass a string like eg:
A is B!A is not B!
it would parse that as-if it were a piece of php-code, which it is in
this case. Remember though that everything you tell php to do in that
string is done at the time the eval() is called. That means that if you
use that string, eg. called $string (how obvious :P) in such an expression:
$string = '...'; // that php code but then as a string, or gotten from
the database
$a = 1;
$b = 2;
echo 'starting...';
eval($string);
echo 'stopping';
?>
it would output:
starting...
A is not B!
stopping
Hope that helps :)
- Tul
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[PHP] Re: HTML Table display based upon field contents
Robb Kerr wrote: I have a complicated table that needs to be altered depending upon the contents of a field in one of my recordsets. I've tried several approaches and need to know what you recommend. I've created three totally different tables and put the HTML code for each into a database. Then I used PHP to insert the relevant code into the page depending upon the contents of a field in a different database. Result - the appropriate code is inserted properly into the HTML. Problem - the HTML table I'm trying to insert contains PHP code which is not executed after being inserted. Because sometimes the HTML table needs 4 rows and other times only 2, I tried enclosing the appropriate s in a PHP IF statement (see below). Problem - PHP IF wasn't executed, both s embedded appeared on page anyway. And, sometimes, the relevant s will include PHP code so this embedding technique won't work. Should I simply describe the entire relevant s on one line, appropriately escape them, assign the to a variable and then use an ECHO to put them on the page? Or does someone have a simpler more elegant solution? Thanx just use eval() on that string, it's not elegant, nor is it really secure, but it'll work fine. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: If...Or...Else
if(a OR b) {
do something
} else {
do something else
}
or
if(a || b) {
do something
} else {
do something else
}
is enough :)
Robb Kerr wrote:
From time to time I need an If statement that includes an Or condition...
What's the correct syntax for the If line?
Thanx
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[PHP] Re: Using and Echoing Session Variables
you need to call session_start() on every page, yes.
Also, if you're bored with assigning values like that, and you're sure
you're not overwriting anything, you could try:
$_SESSION = array('UserId'=>'userid', 'Authorised'=>'yes','etc'=>'blah');
However, remember that you don't need to REassign values to $_SESSION to
keep them stored over multiple visits! :)
hope that helps,
- Tul
Harlequin wrote:
Hi everyone. A few quick pointers if you have time...
I've created a session, easy enough:
I've created variables:
$_SESSION['UserID'] = UserID;
$_SESSION['Authorised']="yes";
$_SESSION['logname'] = $logname;
When a user clicks a link to a test page I created the following doesn't
work though:
echo $_SESSION["UserID"];
Do I need to use the (again):
??? Confused...!
Also - rather than list the session variables the way I am new line session,
new line session etc. is there a better way...?
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[PHP] Re: Book Required
Programming PHP by O`Reilly :) Lester Caine wrote: Harlequin wrote: There's loads and loads of books available on the subject of PHP & MySQL. It would be nice to find one's that DON'T rely on MySQL ;) Does anyone have any recommendations...? Anybody seen a good NON MySQL one. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: How can I tell if a path is absolute?
Trejkaz Xaoza wrote: Michael Ochs wrote: Hi, maybe you could try it with regular expressions! "[A-Z]:\\" or better "[C-Z]:\\" because A and B is used just for floppy drives... Take a look at www.php.net/preg_match/ I'm not sure if you noticed, but I said I wanted it to be portable. Sure, "([A-Za-z]:)?[/\\]" would work to some extent, but would it work perfectly? As far as I can tell, the path "C:/" is _relative_ on Linux and BSD. Am I wrong? TX c:/ wouldn't even work as a path on unix systems. I don't know how paths look on MacOS systems, so can't help you with that. However, after removing the [a-z]: part of the path, you're stuck with an abosulute path that is of the same type as in Unix. In Unix systems absolute paths start with a forward-slash (eg. /usr/local or /home/me/, etc). After removing the c: from eg. c:/this/and/that, you're left with /this/and/that which looks pretty much the same :) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: convert degrees to heading
Here's a quick script I wrote for it:
$deg = $_GET['deg']; // get from URL, for testing atm
$deg %= 360; // make sure it doesn't break on eg 560 degrees
$deg = ((ceil(($deg-22.5)/45))*45+22.5); // break it up into parts we
know, there might be an easier way though, just too tired to see it.
switch($deg) {
case 22.5:
echo 'W';
break;
case 67.5:
echo 'NW';
break;
case 112.5:
echo 'N';
break;
case 157.5:
echo 'NE';
break;
case 202.5:
echo 'E';
break;
case 247.5:
echo 'SE';
break;
case 292.5:
echo 'S';
break;
case 337.5:
echo 'SW';
break;
default:
echo 'W';
break;
}
?>
René fournier wrote:
I have to write a little function to convert a direction from degrees to
a compass -type heading. 0 = West. 90 = North. E.g.:
from:
135 degrees
to:
NW
Now, I was planning to write a series of if statements to evaluate e.g.,
if ($heading_degrees < 112.5 && $heading_degrees > 67.5) {
$heading_compass = "N";
}
The works, but it will require
N, NNW, NNE, NE, NW, ENE, NWW... many IF statements.
Can anyone think of a programatically more elegant and efficient way of
converting this type of data? (I suppose this is not really a problem,
just a curiosity.)
...Rene
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Re: [PHP] custom tags
Eric Emminger wrote: Hi George, How about this? parse the html as xml and replace the component tags with whatever php/html code output that result to a file include the file from previous step Eric On Tue, 6 Jul 2004 15:56:26 -0500, George Lantz <[EMAIL PROTECTED]> wrote: I am looking for a way to parse custom html tags. I would like to then replace those tags with php/html code. Here is an example of the html file to be parsed. Notice the "component", they are the custom tags I wish to replace with code. I only need help in parsing the tags and storing in a variable or array so I can work with the attributes. The component tag will be the only tag I will need to work with. test This is what I was thinking, although if someone has better idea that is fine. I was thinking of storing these in a multi-dimensional array. An example might be $components[0][name][layout]. Is there code out there already that does this? Or you could simply use a regexp to extract those from the code, and then later on using the 'e' flag, replace them with PHP code. - Tul -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Else If/Elseif
Stevie Peele wrote: What is the difference between "else if" and "elseif"? Thanks _ STOP MORE SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail else if shouldn't be used, use elseif, and the difference is non-existant -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: differences in session handling between 4.1.1 and 4.3.1
I would also advise to check for register_globals, since I have the faint feeling it was OFF on your old version and ON in your new (though most logcial would be viceversa :P) Bobby Patel wrote: maybe compare the php settings for both servers (using phpinfo()). Also check the register globals setting. I know this might not be a big help, but it's a start. good luck Bobby "Anders Thoresson" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] Are there any big differences in session handling between 4.1.1 and 4.3.1 of PHP. Almost nothing works like it should since I have moved my site from my local server (4.3.1 on Win2000) to my ISP (4.1.1 on SunOS 5.7). I just started to dump my four $_SESSION-variables on top of every page, and to my big suprise they changes all the time. At login is store the users userid in $_SESSION['u_id']. At later times, I'm working with $_POST['u_id'] when for example changing administrators for different parts of the site. When I'm doing this, also $_SESSION['u_id'] changes. And at my localhost, $_SESSION's stays put. I'm going crazy here. -- anders thoresson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: session handling works on local server, but not when uploadedto ISP
... and line 5 of reporter_view.php reads what? =/ Anders Thoresson wrote: Hi, I've a login script that works fine on my local server, but when I runs it from my ISP I get the following error: Warning: Cannot send session cookie - headers already sent by (output started at /export/home/thore/public_html/phptest/reporter_view.php:5) in /include/accesscontrol.php on line 9 Warning: Cannot send session cache limiter - headers already sent (output started at /export/home/thore/public_html/phptest/reporter_view.php:5) in /include/accesscontrol.php on line 9 If I had made any mistake in my handling with the session functions, shouldn't that be the case also at my local server? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] parsing problem
David Otton wrote: On Sat, 28 Jun 2003 12:33:27 +0200, you wrote: I have problem in including this text in my PHP parsed file for XHTML definition: It works if I remove the first line: So, I am assuming PHP has problems with the symbols, as they are recognised to be PHP code delimiters. Yup. try ' . "\r\n"); ?> or turning short tags off. use -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] pspell
does anyone know how to check what Dictionaries for pspell/aspell are present on the system? since I will need to do that dynamically ;) thanks - Tu -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] __FILE__ plus variables?
David Nicholson wrote: Hello, This is a reply to an e-mail that you wrote on Sat, 28 Jun 2003 at 13:16, lines prefixed by '>' were originally written by you. I have a password protected site. If you go to an inside page before logging in, it redirects you to the log in page. I would like to grab the URL that a user tries to access and send them back there after they log in. I'm using __FILE__ to get the file name (secondary.php for example) but that doesn't return the variables (secondary.php?cat_id=267). Is there a way for me to get the full URL not just the filename? Sam Using my Apache installation it is in $_SERVER['REQUEST_URI']. At a guess I would say most other web servers will put it there too. David. on IIS you can access it using $_SERVER['query'] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] mod_rewrite rules for the php.net rewritten urls
I was wondering where I could get the rewrite urls for the rewriting of urls like here on php.net. - Tularis P.S. I don't think they're in the phpweb on CVS, I checked that already -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] memory exhausted... memory leak?
It worked fine till I changed database (just the database-name). Here is
the script that is executed untill the line 61:
- - - GLOBAL.PHP- - -
// Pre-load vars
$settings= array();
$database= array();
define('XE_VERSION', '0.03a');
define('XE_BUILD', '2003012319');
// Require important Files
require './config.inc.php';
require './libs/error.lib.php';
-
- - - CONFIG.INC.PHP - - -
$database['host'] = 'localhost';
$database['port']= '3306';
$database['name'] = 'XEngine';
$database['user'] = '';
$database['pass'] = '';
$database['type']= 'mysql3x';
$database['persistent'] = (bool) false;
$database['status']= 'off';
$settings['template_type']= 'file';// Takes only 'file' or 'db'
$settings['pre']= 'xe_';
?>
--
- - - ERROR.LIB.PHP - - -
class error{
var $cache;
var $last;
var $show;
var $die;
function error(){
$this->cache = array();
$this->last = '';
$this->show= 4;
$this->die= 1;
define('XE_FATAL', 0);
define('XE_ERROR', 1);
define('XE_WARNING', 2);
define('XE_MINOR', 3);
define('XE_NOTICE', 4);
}
function set($show=4, $die=1){
$this->show= $show;
$this->die= $die;
return true;
}
function report($msg, $type){
global $output;
if($type <= $this->show){
$this->cache[]= $type.'-|-'.$msg;
$this->last= $type.'-|-'.$msg;
if($this->die >= $type){
$output->finish();
}
}
return true;
}
function show($which='all'){
$array= array(
0=> 'FATAL ERROR',
1=> 'ERROR',
2=> 'WARNING',
3 => 'MINOR ERROR',
4=> 'NOTICE'
);
if($which=='all'){
foreach($this->cache as $cache){
$errors = explode('-|-', $cache);
$type= $errors[0];
$msg= $errors[1];
// line 61
$return[]= array($array[$type], $msg);
--
I hope you can help me with this, because (on the same server), just 2
dirs away, the same script is running smoothly... :S
- Tularis
John W. Holmes wrote:
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to
allocate 35 bytes) in
/home/virtual/site8/fst/var/www/html/staff/libs/error.lib.php on line
61
I suddenly got this error on one of my sites, and after rechecking the
script, it shouldn't be happenning :S
Anyway, I was wondering if this would be a memroy leak? or just some
standard notice that I'm taking up too much memory ;)
What were you doing when it happened?
---John W. Holmes...
PHP Architect - A monthly magazine for PHP Professionals. Get your copy
today. http://www.phparch.com/
[PHP] memory exhausted... memory leak?
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 35 bytes) in /home/virtual/site8/fst/var/www/html/staff/libs/error.lib.php on line 61 I suddenly got this error on one of my sites, and after rechecking the script, it shouldn't be happenning :S Anyway, I was wondering if this would be a memroy leak? or just some standard notice that I'm taking up too much memory ;) Anyone? - Tularis -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] No Global Code Fixing
NOTE:
this basicly mimics the way register_globals works.
I use this code to fix register_globals aswell as the magic_quotes_gpc:
$global = @array($_SESSION, $_SERVER, $_COOKIE, $_POST, $_GET, $_FILES,
$_ENV);
$global_old = @array($HTTP_SESSION_VARS, $HTTP_SERVER_VARS,
$HTTP_COOKIE_VARS, $HTTP_POST_VARS, $HTTP_GET_VARS, $HTTP_FILES_VARS,
$HTTP_ENV_VARS);
if(!$global[1]){
$global = $global_old;
}
if(!@ini_get('magic_quotes_gpc')){
foreach($global as $array){
if(is_array($array)){
foreach($array as $key=>$val){
$$key = addslashes($val);
}
}
}
}else{
foreach($global as $array){
if(is_array($array)){
foreach($array as $key=>$val){
$$key = $val;
}
}
}
}
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[PHP] Re: security in guest book and user forums
most forums do this Seraphim wrote: Anders Thoresson wrote: I've seen both guest books and user forums "hacked" by users who enter javascript or other code, and that way redirects vistors to other sites or do other unwelcome things. What expressions should I look for and not allow in my forms? I use the htmlspecialchars() function to disable all html. This function basically puts a '\' in front of eacht html character and thus disables all html. You may not want to do this if you want to allow, for example or other friendly html. If so you can use a regex to disable the
Re: [PHP] Avoiding Repeat Posts
Actually, there is a different solution to this aswell. One that is used by phpBB and XMB, and maybe some others aswell. Basicly, it's an anti-flood system. It works like this: - You are a member and logged in You post, and the post gets inserted into the database, and with it, also the time of posting is kept. When you post the next thing, the script checks if there was a message posted, by that user in the last X seconds (can be set manually). If so, it will return a message saying not to repost stuff. Otherwise, it just continues... Hope this helps, - Tularis XMB Lead Developer Orangehairedboy wrote: I did searches on this one...I'm using NNTP so it's nice...unfortunatly, no one had quite the same problem. I had thought about the random value already (see paragraph about unique visit id), but it just seems like so much to keep track of... After asking on other board on the same topic, one theme seems to be the same...just use redirects. If anyone else is having the same issue, you can do a redirect using the PHP header() function to send the user directly to the next page. If the user goes back, they will get a new version of the form, and less browsers will support resubmitting. Also, on the same note, if anyone is using buttons as links, make sure you are using an http://whatever'"> command instead of submitting a form with no fields. This will solve the problem here. Lewis "Justin French" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... on 04/01/03 7:26 PM, OrangeHairedBoy ([EMAIL PROTECTED]) wrote: Hi all, It seems that there might be some basic solution on this that I never received a memo on... it's been mentioned MANY times on the list in the last week :) Basically, I'm looking for a way to avoid repeat posts. If someone, for example, adds something to a bulletin board, clicks submit, and then presses F5, they're just 1 click away from re-submitting the form and posting the same information for a second time. Is there an easy way to avoid this? when "generating" the form, include a hidden field which has a unique, random value. then the script that recieves/validated the post should check that the value doesn't already exist in the database before inserting... the only way someone can double-post is by actually refreshing the form (thus getting a new hidden field. I've thought about using a "unique visit id" or something which gets triggered when a visitor posts, but that seems like a lot to do... Also, do you think I should look into redirecting the user once they've posted so they can't go back? they can still go "back" after a redirect... it's just pages in the browser cache... Justin French -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: email/time question
Since PHP is a languaged that work with user-activation, it would only be possible with an infinitive loop, and a constant time check. PHP needs some user interaction before it can start processing. That's the entire basis. As such, it IS techinally possible to do what you said, but is also something that is really NOT recommended to do with php. The other possiblity is to set a cron job to fire up a script which will send the email. - Tularis Randy Johnson wrote: Here is what i need to do. I have a form where a user will submit, email address, email text and a time like 11:15pm and at 11:15pm the email is supposed to be sent out. any ideas on how i can make this happen automatically??? Randy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Securing areas of a web site with PHP
Jean-Christian Imbeault wrote:
1- user logs in
2- user goes to restricted area
3- user views pages, orders an item, changes his account settings, etc ...
4- user logs out
5- user is sent to log out page
6- user hits back button ...
And here my problems start ... even though the user has logged out, all
the "restricted" pages he saw are still cached by his browser and
accessible ...
I have tried using a script that checks a session variable that
indicates if a user is logged in or not and take appropriate action at
the start of all "restricted" pages, but that doesn't work since when
the user hits the back button, the PHP script is not re-executed, the
page is simply loaded from the browser cache.
What are some PHP techniques I could use so that a user can no longer
access/use pages once he has logged out?
I adives to make sure the browser doesn't cache it *at all*.
This can be done using (one, or more) of the following headers:
// HTTP 1.1 compliant:
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
// HTTP 1.0 compliant:
header("Pragma: no-cache");
Hope that helps,
- Tularis
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[PHP] Re: loading a db table into a php array from mysql
Usually,
using mysql to handle your tables is *way* faster than letting php
handle it.
That's what it was made for, speed...!
In your case, you could just do a complex join I think. That would give
all results in one table, and you could just order that on scheduletime,
and voila, you'd have a pretty nice outcome, namely the schedule you
were making via a complex way ;)
David T-G wrote:
Hi, all --
I'm so far about knee-deep in my project where I'll be using php to talk
to the mysql database and spit out my web pages. I wonder if I should be
making individual calls to the database or loading a table into an array
so that I can walk it without those calls.
For instance, I have an instructors table, a clients table, and a
schedule table that has an instructor number column, a client number
column, and a time slot column.
In order to print an instructor's schedule for the day, I have to query
the instructors table to get the id where the name matches, and then
query the schedule table to get the clients and times where the time slot
matches some time today, and then I have to repeatedly query the clients
table to get the names where the returned id matches. Since the schedule
should be arranged in time order, I might even have client 1 and then
client 2 and then client 1 again -- but I've already switched to 2 so I
have to start over for 1.
It seems a bit silly to, say, load the entire clients table into an array
because there could be thousands or millions of clients, but it's an
awful pain to go and make all of those mysql_query calls to walk the
clients list. Should I just build a huge query something like
$query = "select fname,lname from clients where " ;
foreach ($results_from_previous_query_somehow as $clinum)
{ $query .= "id = '$clinum' or "; }
$query .= "id = ''" ; # nice always-failing value; easier than pruning
and then query that way, to get all of what I need in one shot but not
the whole table (unless I need it all)? Does sql like big OR clauses
like that?
I don't know if this is a PHP or a MySQL question, so this once I've
posted it to both lists. I'll also summarize to both.
TIA & HAND & Happy New Year
:-D
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[PHP] Re: Keeping script running, but returning control to user?
What you could do is put your 'lengthy process' in a shutdow function
(register_shutdown_function()), and just do the header.
There is actually even a simpler way to do this, but it's not advised:
-
first
@set_time_limit(0); // Make sure there is no limit
ob_start(); // Start output buffering
if(array_key_exists('secondrun',$_GET)) {
print "Processing complete!";
exit();
}else{
header("Location:http://{$_SERVER['HTTP_HOST']}{$_SERVER['PHP_SELF']}?secondrun=1");
ob_flush(); // This sends the output to your browser
ignore_user_abort(true);// Makes sure the script continues...
... // Lengthy process here
}
?>
-
Basicly, what it does here, is force the engine to flush the output (the
redirect) to your browser, next,
because the set_time_limit is set to 0 (unlimited), your script still
goes on... While you can follow the other link.
The ignore_user_aboort(true), makes sure the server continues till the
script finishes. Otherwise it would kill it as soon as you'd press stop
on your browser :)
Hope that helps,
- Tularis
Leif K-Brooks wrote:
I need a way to keep the script running on the server, but control to
the user. I'm doing some lengthy processes on the server, and it seems
stupid to keep the user waiting pointlessly. I'm trying to do something
like:
header("Location:
http://{$_SERVER['HTTP_HOST']}{$_SERVER['PHP_SELF']}?secondrun=1");
//Do long processing here
?>
but it waits till the long processing is done, and then redirects. Is
there another way to do this?
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Re: [PHP] echo'ing array contents through reference variable
echo ${$pdag[$n]}; // is also possible in case the [$n] is the index to
pdag. Otherwise use this:
echo ${$pdag}[$n];
- Tularis
PS. This is basicly the same thing as Ernest said, but shorter...
Ernest E Vogelsinger wrote:
At 16:50 23.11.2002, -<[ Rene Brehmer ]>- said:
[snip]
>Shouldn't
> echo($$pdag[$n]);
>be able to pull the string contents of the array? Or is there some extra
>needed when using referenced variable?
[snip]
This is ambiguous: is it "$$pdag" indexed by "[$n]", or is it "$pdag[$n]"
dereferenced? If you're using an interim variable you'll get what you need
- either use (depends on your data layout which I don't know)
$temp = $pdag[$n];
echo $$temp;
or
$temp = $$pdag;
echo $temp[$n];
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[PHP] Re: php programming style
why wouldn't it be?? it's clean code as long as you can read it without having to do much trouble, and you have written it the shortest way possible with still enough extra stuff around to make other ppl understand it... so, I would say -> yeah, it's clean :) - Tularis Beau Hartshorne wrote: Hi, I'm curious if it's bad coding style for a function to return a value on success, or simply "false" on fail. Here's what I mean: Is this ok? Thank you, Beau -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] show mysql- processing time
ok, let me rephrase that... I ment I would like to use a php-function for it, OR a mysql command... just not such a function as I put down here... Chris Shiflett wrote: Well, you say you want to return the processing time of a MySQL query via PHP, but then you go on to say that you do not want to do this in PHP. :-) I would recommend Jeremy Zawodny's mytop: http://jeremy.zawodny.com/mysql/mytop/ Chris --- Tularis wrote: >I was wondering if anyone knew of a way to return the processing >time of a mysql query via php. > >And NOT using the > >$starttime = time(); >mysql_query($whatever); >$endtime = time(); >$processingtime = $endtime - $starttime; -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: HTML page and php
Martin Johansson wrote:
How do I get a html page into a string variable in php?
Isnt there any function working like this:
$homepage = getHtmlPage(http://www.myhomepage.com/index.html);
/Newbie
try this:
$file = file('http://www.myhomepage.com/index.html');
foreach($file as $key => $val){
echo "$val\r\n";
}
/*
$file will be an array where each index corresponds with a line from the
file.
so:
1 =>
2 =>
3 => blah
etc.
Hope that helps
- Tularis
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[PHP] show mysql- processing time
I was wondering if anyone knew of a way to return the processing time of a mysql query via php. And NOT using the $starttime = time(); mysql_query($whatever); $endtime = time(); $processingtime = $endtime - $starttime; Does anyone please? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] this oop-script still doesn't work
ok, I have gotten great help here already, but it still doesn't work,
it returns a object not found error (on the $foo->bar() line). I want to
change $overall->foo->bar() to $foo->bar... any tips? or help??
thanx!
- Tularis
class overall {
var $loaded;
function load($class){
eval("global \$$class;"); // This didn't work either
//$this->loaded[] = $class; // see the comments with the foreach()
eval("\$this->$class = new $class;");
return true;
}
}
class foo {
var $bar;
// Constructor
function bar(){
if(!isset($this->bar)){
$this->bar = 1;
}else{
$this->bar++;
}
echo $this->bar."";
}
}
// Start actual loading
$overall = new overall;
$overall->load('foo');
/*
foreach($overall->loaded as $key=>$val){ // didn't work.. I commented
this out, because I thought it MIGHT interfere with the other way
$val =& $overall->$val; // both don't work though :(
}
*/
$overall->foo->bar();
$overall->foo->bar();
$overall->foo->bar();
$overall->foo->bar();
// it doesn't understand this
$foo->bar();
?>
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[PHP] Re: Display character 'x' times
Tjoumaidis Tasos wrote:
Hello to everybody,
I just want to display a character like D x times like DDD where x is a
$variable i get from the database i cannot make it work like it is on
perl (i don't even know if it is working the same way) and i can't find
a reference in the manual on php.net, maybe it's a silly question but i
am stuck at this moment.
Thx in advance.
there propably is a faster way, but you can use this:
$max = the amount of times you want it to show :) //eg 6 would give dd
while($i <= $max){
echo 'd'; //or any character you want
$i++;
}
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[PHP] Re: What is the best site for PHP news, articles, resources etc....
Phil Schwarzmann wrote: Let's say you had one site and one site only to get the latest PHP/MySQL news, articles, reviews, resources, tutorials, advanced stuff etc. What would it be?!? zend.com :) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: problem with code (almost fixed)
Yan Grossman wrote:
Hi,
I fixed my code to handle forms using $_REQUEST. Just having problem with
the fields with multiple contents...
the one you have to call like field[0], field[1],etc...
How do I use the brackets inside brackets?
my case is this:
Thanks.
I have fixed everything with $_REQUEST
but I am having problem with the multiple fields, like this:
$message .= ("hotel = " . $_REQUEST['pac_hot[0]'] . " - ".
$_REQUEST['pac_hot[1]']. " - " .$_REQUEST['pac_hot[2]'] . " -
".$_REQUEST['pac_hot[3]'] . "\n");
How am I going to use the brackets inside the brackets?
Thanks
first, change this: $_REQUEST['pac_hot[0]'] to: $_REQUEST["$pac_hot[0]"]
a single quote ( ' ) disallows variable-matching, meaning it won't
replace $var by what it should be, it just leaves it as it where a real
character it should show.
that should work on all your request array stuff hope this helps :)
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[PHP] Re: OOP - transfering object-pointer
actually, the foreach should read:
foreach($overall->loaded as $key=>$val){
$val =& $overall->$val;
}
still doens't work though
Tularis wrote:
Currently, I have the following code:
loaded[] = $class;
eval("\$this->$class = new $class;");
return true;
}
}
class foo {
var $bar;
// Constructor
function bar(){
if(!isset($this->bar)){
$this->bar = 1;
}else{
$this->bar++;
}
echo $this->bar."
";
}
}
// Start actual loading
$overall = new overall;
$overall->load('foo');
foreach($overall->loaded as $key=>$val){
$key =& $overall->$key;
}
$overall->foo->bar();
$overall->foo->bar();
$overall->foo->bar();
$overall->foo->bar();
// it doesn't understand this
$foo->bar(); // line 42
?>
It all works, except for the $foo->bar(); thing... I am wondering how I
can turn $overall->foo->bar() to $foo->bar(); as all the things I've
tried, don't work, they don't give any errors, except for
Fatal error: Call to a member function on a non-object in
d:\apache\htdocs\classes.php on line 42...
Could anyone help me with this?
thanx
- Tularis
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[PHP] OOP - transfering object-pointer
Currently, I have the following code:
class overall {
var $loaded;
function load($class){
//eval("global \$$class;"); // This didn't work either
$this->loaded[] = $class;
eval("\$this->$class = new $class;");
return true;
}
}
class foo {
var $bar;
// Constructor
function bar(){
if(!isset($this->bar)){
$this->bar = 1;
}else{
$this->bar++;
}
echo $this->bar."";
}
}
// Start actual loading
$overall = new overall;
$overall->load('foo');
foreach($overall->loaded as $key=>$val){
$key =& $overall->$key;
}
$overall->foo->bar();
$overall->foo->bar();
$overall->foo->bar();
$overall->foo->bar();
// it doesn't understand this
$foo->bar(); // line 42
?>
It all works, except for the $foo->bar(); thing... I am wondering how I
can turn $overall->foo->bar() to $foo->bar(); as all the things I've
tried, don't work, they don't give any errors, except for
Fatal error: Call to a member function on a non-object in
d:\apache\htdocs\classes.php on line 42...
Could anyone help me with this?
thanx
- Tularis
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[PHP] OOP-classes in PHP
currently I have the followig script:
everything works fine, except for the fact that it doesn't seem to
understand $overall->foo->foo();. It returns this error:
"Fatal error: Call to a member function on a non-object in
d:\apache\htdocs\classes.php on line 32"
Now, I know the object is loaded, because the constructor is run, and
puts out a 1 onscreen... I wish to know how to make this work...
any help plz?
thanx
- Tularis
class overall {
var $loaded;
function load($class){
eval("\$$class = new $class;");
return true;
}
}
class foo {
var $bar;
// Constructor
function foo(){
if(!isset($this->bar)){
$this->bar = 1;
}else{
$this->bar++;
}
echo $this->bar."";
}
}
// Start actual loading
$overall = new overall;
$overall->load('foo');
// As of here it won't work anymore... somehow $overall->foo-> doesn't
work...
$overall->foo->foo();
?>
(and if possible, I would also like to change $overall->foo->foo() to
$foo->foo(), but still keeping that class as a 'subclass' to the overall
one.)
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[PHP] Re: PROBLEMS
all header-modifying functions should be BEFORE any echoing is done, so:
session_start();
if(!session_is_registered("camion"))
DIE("error");
should be BEFORE:
Ysrael guzmán wrote:
THIS IS MY SCRIPT:
AND THE ERROR IS
Warning: Cannot send session cache limiter - headers already sent
(output started at
c:\foxserv\www\t-demo1\pedidos\prod_mostrar_tipo.php:4) in
c:\foxserv\www\t-demo1\pedidos\prod_mostrar_tipo.php on line 5
/// SCRIPT ///
"; echo " "; echo "*",
$filas['prod_descripcion'], "*"; echo ""; echo "
"; echo "
\n"; echo "
"; echo " "; //echo ""; echo ""; // if
(esta_en_array($camion, $cantidad)) // { //
echo "VALUE='$cantidad' size='15'>"; //
} //else // { //
$cantidad = 0; // echo
"VALUE='$cantidad' size='15'>"; //}
// echo ">"; echo "\n";
echo "\n"; echo "\n";
// echo ""; // echo "";echo " ";
echo "\n"; echo "";
echo "
"; echo "
"; echo ""; echo " "; echo "
"; echo ""; echo "
"; echo ""; echo " "; echo "*CODIGO: *",
$filas['prod_cod'], "
\n"; echo ""; echo "
"; echo ""; echo " "; echo "*PRESENTACION: *",
$filas['prod_presentacion'], "
\n"; echo ""; echo "
"; echo ""; echo " "; echo "*FABRICANTE: *",
$filas['prod_fabricante'], "
\n"; echo "
"; echo " "; echo "*DESCRIPCION: *", $filas['prod_propiedades'], "
\n"; echo ""; echo "
"; } echo "
"; ?>
Ysrael Guzmán Meza
-Mensaje original-
De: BigDog [mailto:bigdog@;venticon.com]
Enviado el: Jueves, 14 de Noviembre de 2002 09:54 a.m.
Para: [EMAIL PROTECTED]
Asunto: RE: [PHP] PHP Auth with Apache
You are sending the header information to the browser before the session
stuff begins...
make sure that you call "session_start();" right after your I have a
problem, i'm new in PHP
>
>It is the problem in my browsegive me the solution please
>
>Warning: Cannot send session cache limiter - headers already sent
>(output started at c:\foxserv\www\t-demo1\pedidos\prod_oficina.php:5)
>in c:\foxserv\www\t-demo1\pedidos\prod_oficina.php on line 6
>
>
>HELP MEEE!!1
>
>Sos
>
>ygm
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Re: [PHP] OOP-related question
Ok, I combined both, your tip and Brent's, now I have the following
error, with the following code:
Fatal error: Cannot pass parameter 1 by reference in
/home/shadowlight/public_html/test/libs/global.lib.php on line 296
code:
function load(&$class){
global $$class;
$$class = new $class;
$this->loaded[$class] = 1;
$$class->setup(); // Run constructor
if(!is_object($$class)){
return false;
}
return true;
}
}
Danny Shepherd wrote:
Hello,
Adding the following as the first line of overall->load() should solve
your
problem.
global $$class;
HTH,
Danny.
- Original Message -----
From: "Tularis"
To:
Sent: Thursday, November 14, 2002 8:18 PM
Subject: [PHP] OOP-related question
>Hey,
>I have the following script:
>class overall {
>
>function overall(){
>$this->loaded['overall'] =1;
>
>function load($class){
>
>$$class = new $class;
>$this->loaded[$class] = 1;
>
>$$class->setup(); // Run constructor
>
>if(!is_object($$class)){
>return false;
>}
>return true;
>}
>}
>
>then I have a few classes, which hold a setup() function as thei
>'constructor'. Then, I do this:
>
>$overall = new overall;
>$overall->load('debug');
>
>this should load the debug class. I want it to load to $debug->, but it
>won't even load to $overall->debug
>
>It's not really a *need* to have this, it's just something that will
>help me in keeping control over all classes. I don't want to use new
>class, because this way it would be easier to 'instruct' the
>'constructor' of those new classes to change the values of the vars to a
>specific one, without calling for something weird...
>
>anyway, it doesn't work, and it doesn't spit out an error either.
>Any ideas?
>
>- Tularis
>
>
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>To unsubscribe, visit: http://www.php.net/unsub.php
>
>
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[PHP] OOP-related question
Hey,
I have the following script:
class overall {
function overall(){
$this->loaded['overall'] =1;
function load($class){
$$class = new $class;
$this->loaded[$class] = 1;
$$class->setup(); // Run constructor
if(!is_object($$class)){
return false;
}
return true;
}
}
then I have a few classes, which hold a setup() function as thei
'constructor'. Then, I do this:
$overall = new overall;
$overall->load('debug');
this should load the debug class. I want it to load to $debug->, but it
won't even load to $overall->debug
It's not really a *need* to have this, it's just something that will
help me in keeping control over all classes. I don't want to use new
class, because this way it would be easier to 'instruct' the
'constructor' of those new classes to change the values of the vars to a
specific one, without calling for something weird...
anyway, it doesn't work, and it doesn't spit out an error either.
Any ideas?
- Tularis
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[PHP] Re: passing multiple variables in a url
If I understand correctly, you want to ahev links like:
To get the vars from the thread, if you don't know it's name, you can
use soemthing like this:
foreach($_GET as $key => $name){
$get[] = htmlentites($name, 'ENT_QUOTES');
}
that way you'll get a $get array, with all the url parts in it, numbered
from 0->n
the htmlentities() makes sure that all html compatible chars get
transformed in to others, which look the same but don't work as html (eg
» and such).
Hope this helps,
- Tularis
XMB Lead Developer
Cj wrote:
I have a "contact us" php script on my site that allows users to email
direct from the webiste. I want to be able to pass the to address and
subject line to the script so I can call teh web page from elsewhere
on the
site and have it automatically choose the correct email address and
subject
line.
EG instad of using which requires them
to have an email client set up on the machine I want to link to
<mailto:joe@;bloggs.mail.com>
The script already handles the email=director by setting a default
entry in
a drop down form but I can't get it to separate the first and second
variables in the URL.
Also is this a big security risk as I will be echoing the 2nd variable as
the contents of a form field. Would it be possible for someone to type in
the URL with HTML/php in it that would make a mess of everything? How
can I
protect against this? Would it be sufficient to just pase the 2nd
variable
for non alphabetic characters and remove them?
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