date:20050920

Re: [PHP] html forms in php

2005-09-20 Thread Alain Reguera

 I HATE Are you sure? prompts.  If I wasn't sure, I wouldn't have
 clicked it in the first place.
 
 If you want to make your users happy, trust them when they say
 Delete, but make it easy to undo.  Instead of deleting the records,
 just set the Delete flag and timestamp.  Then when the odd user
 makes a mistake, just unset that flag.  After a period of time, you
 can really delete the records that were marked a few days ago.

Thanks for that comment Scott, it helps me a lot to see what I didn't.
I've been developing with Are you sure? confirmation and it really
makes things difficult to users and slow actions' time to be
committed. Now, I've changed and all is more nice.

Thanks again, feel this is a very good practice.

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Re: [PHP] Re: Problem with mysql_connect(...)

2005-09-20 Thread viraj

http://www.experts-exchange.com/Web/Web_Languages/PHP/PHP_Installation/Q_21077014.html

~viraj.


On 9/19/05, Mark Rees [EMAIL PROTECTED] wrote:
 
 I'm trying to connect to my MySQL server with mysql_connect(...). The server
 is up and running, and I'm running Apache with PHP properly installed. :
 
 ---
 But have you got the mysql extension? put this in a script
 
 ?php
  phpinfo();
 ?
 
 and view the output to check
 
 The code
 $hleServer = mysql_connect($host, $user, $password)
  or die(Error: Database. Error code: 1. Contact the web master!);
 
 $host, $user, and $password are set to correct values (checked and double
 checked). The funny thing is that not only does the function call fail, but
 I'm not even getting the text defined by die(...). It seems that the
 function call is more or less a black hole. Of course the rest of the script
 doesn't execute either, I'm just left with a blank page.
 
 I didn't use to have this problem before (using PHP 5 now instead of 4).
 
 Thanks for any input on this problem...
 
 
 Arthur
 
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[PHP] Tidying code for PHP5.0.5/PHP4.4.0

2005-09-20 Thread Lester Caine

This type of code is used in a few places, so I'd like a little help 
converting it to 'good code' under the new rules ;)


Get the key from an array ( fails because key(array) )

if( $pId == key( $this-getFunc() ) ) {

In getFunc()

return ( $this-getAssoc(select Id, Content from database...);

Current fix is just to create the array and use that
$keyarray = $this-getFunc();
if( $pGroupId == key( $keyarray ) ) {

This works fine, but is there a 'proper' way to do it now that what 
looked tidy originally fails with an error?


Lester Caine
-
L.S.Caine Electronic Services

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[PHP] ordimage problem!! (export image from oracle to directory with php)

2005-09-20 Thread Rasim �EN

Hi all oracle+php expert,

we kept all image in oracle db. Now nearly we have 1 000 000 image in
database. we want to export them to directory. but with php we couldn't do
it.

our process : ordimage type - blob type - jpeg file type -
directory(save)

Any body know it? any advice, we appreciate!!

thanks a lot.

rasimsen

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Re: [PHP] Tidying code for PHP5.0.5/PHP4.4.0

2005-09-20 Thread Jasper Bryant-Greene


Lester Caine wrote:
This type of code is used in a few places, so I'd like a little help 
converting it to 'good code' under the new rules ;)


They're not new rules. PHP is just warning you where it didn't before. 
It was still bad coding practice before.




Get the key from an array ( fails because key(array) )

if( $pId == key( $this-getFunc() ) ) {

In getFunc()

return ( $this-getAssoc(select Id, Content from database...);

Current fix is just to create the array and use that
$keyarray = $this-getFunc();
if( $pGroupId == key( $keyarray ) ) {

This works fine, but is there a 'proper' way to do it now that what 
looked tidy originally fails with an error?


That is the 'proper' way, since you are using key() exactly as it is 
intended to be used, although you could avoid the reference like this:


$keys = array_keys( $this-getFunc() );
if( $pGroupId = $keys[0] ) {

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http://jasper.bryant-greene.name/

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RE: [PHP] Re: Suggestions for class design

2005-09-20 Thread Murray @ PlanetThoughtful

 on 09/19/2005 02:33 PM Chris W. Parker said the following:
  Let's take for example a class called 'Customer' that (obviously)
  manipulates customers in the database. Here is a very basic Customer
  class. (Data validation and the like are left out for brevity.)
 
 This is a basic object persistence problem.
 
 
  (Unless I've already got some major design flaws I think we should be
  good to go.)
  
   Where I get tripped up is when I realize I'll need to at some point
   get more than one customer at a time and thus I want to add a method
   called 'get_customers()'.
 
 
 Yes, there is a problem. You are trying to retrieve objects into memory
 before they exist. It makes more sense that you retrieve objects using a
 factory class.
 
 That is the approach of Metastorage. You may want to take a looka at
 Metastorage before you reinvent the wheel.

Hi Manuel,

I very much understand your desire to promote your various projects, but the
original poster is asking a question that is basic to any programmer's
development in object-oriented coding.

Once he understands how to solve class abstraction problems such as the one
he is asking about, he will be better equipped to deal with a wider range of
application development tasks.

This is not to trivialize your Metastorage project (or, to be more accurate,
I know nothing about it, so it's not my place to trivialize it or
otherwise), but to point out that 'out-of-the-box' solutions to fundamental
coding development problems probably ultimately makes for a poorer
programmer. I could well be wrong, but it seems this is a case of give a
man a fish as opposed to teach a man to fish.

Also, and separate from above, I don't understand the relevance of your
comment, You are trying to retrieve objects into memory before they exist.
Unless I'm horribly mistaken [1], the original poster has developed a class
that abstracts a single customer, and is asking the list for suggestions in
how to best approach a need to be able to abstract collections of customers.
This is a normal application development issue, and for the life of me I
can't grasp how your comment relates.

Much warmth,

Murray
---
Lost in thought...
http://www.planetthoughtful.org

[1] And it wouldn't be the first time!

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Re: [PHP] Tidying code for PHP5.0.5/PHP4.4.0

2005-09-20 Thread Lester Caine


Jasper Bryant-Greene wrote:


Lester Caine wrote:

This type of code is used in a few places, so I'd like a little help 
converting it to 'good code' under the new rules ;)


They're not new rules. PHP is just warning you where it didn't before. 
It was still bad coding practice before.


Since it is not my own code ...
The problem is that little problems like this HAVE been duplicated and 
no one has complained before ;)

Now we have to go through every library and eliminate them ...


Get the key from an array ( fails because key(array) )

if( $pId == key( $this-getFunc() ) ) {

In getFunc()

return ( $this-getAssoc(select Id, Content from database...);

Current fix is just to create the array and use that
$keyarray = $this-getFunc();
if( $pGroupId == key( $keyarray ) ) {

This works fine, but is there a 'proper' way to do it now that what 
looked tidy originally fails with an error?


That is the 'proper' way, since you are using key() exactly as it is 
intended to be used, although you could avoid the reference like this:


$keys = array_keys( $this-getFunc() );
if( $pGroupId = $keys[0] ) {


Actually the proper way would be to get each function to produce a 
single result - but I'm not going to re-code everything :)


I suppose the REAL questions was - Why was using the function in this 
way a 'bad practice', is there any way that it could be made a 'good 
practice' since the intent is so obvious?
I understand the new checks, but I don't see that the original was 
particularly 'bad' - only that under some conditions it might cause a 
problem?


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Re: [PHP] Tidying code for PHP5.0.5/PHP4.4.0

2005-09-20 Thread Jasper Bryant-Greene


Lester Caine wrote:
I suppose the REAL questions was - Why was using the function in this 
way a 'bad practice', is there any way that it could be made a 'good 
practice' since the intent is so obvious?
I understand the new checks, but I don't see that the original was 
particularly 'bad' - only that under some conditions it might cause a 
problem?




Basically, in PHP, a reference (such as what key() takes as a parameter 
[1]) can only point to an actual variable, not directly to the result of 
a function. So you have to assign the output of the function to a 
variable first.


From the PHP manual [2]:
| the following examples of passing by reference are invalid:
|
| foo(bar()); // Produces fatal error since PHP 5.1.0
| foo($a = 5); // Expression, not variable
| foo(5); // Produces fatal error

Whether this is the optimal behaviour has been the subject of recent 
debate on this list [3]. Rasmus states that the current behaviour of 
throwing a fatal error will be changed to a notice.


[1] http://php.net/key
[2] http://php.net/language.references.pass
[3] http://marc.theaimsgroup.com/?l=php-generalm=112689425109173w=2
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Re: [PHP] Suggestions for class design

2005-09-20 Thread Jochem Maas


Hi Chris,

nice thread, good questions - nice to see some real programming
theory being discussed - does us all some good :-)

here is my take, hth:

Chris W. Parker wrote:

Anas Mughal mailto:[EMAIL PROTECTED]
on Monday, September 19, 2005 4:02 PM said:



The simplest way to solve this problem is as follows:

- Have your Customer class hold only attributes for a customer. This
class would only have getter and setter methods. In the Java world,
this is referred to as a JavaBean.  
- Then, have a DAO class that does your data access functions.


Here is a sample DAO class:


[snip]

Ahh.. I guess this is the same thing that Michael Sims suggested?



class CustomerDAO {


function getCustomer(..) {
...
//return a customer
}



So I return a Customer object that has the set and get methods? And does
that mean I do the following?

-set_first_name()
-set_last_name()
-set_address_1()
-set_address_2()
-set_address_3()
-set_city()
-set_state()


me, I have 'data object' that are subclasses of a 'peer' object, the
'peer' class has all the methods for data handling e.g.

Persistent::submit() (update and insert are handled/determined internally)
Persistent::get()
Persistent::find()
Persistent::findRange()
etc..

the 'data object's have definitions that stipulate 'field'  objects
for each field in the database (usually a 1 to 1 relationship but not
always - for instance there is a VectorField for 1 to many stuff, and an
AssocField for many to many stuff).

if I have a Customer class I can do something _like_:

$cust = Persistent::get('Customer', array('CONTACT_ID' = $id));
$cust-firstname = 'Bob';
$cust-lastname = 'Builder';
$cust-submit();

the 'peer' class has __get() and __set() methods that find the requested
'field' object and return or set its value e.g. (very simplified)

class Persistent
{
function __get($name)
{
if (isset($this-fields[$name])) {
return $this-fields[$name]-getValue();
}

throw new Exception(field '$name' does not exist in this 
(.get_class($this).) object!);
}
}

maybe that gives you an idea about how to avoid constantly writing practically
the same getter/setter methods over and over... and also how to avoid
writing practically identical collection getter functions/methods
(how much different will you getCustomers() method be from your getProducts()
method ... in general anyway ... there are always exceptions to the rule! :)


etc.

Or is there a better way to handle it?



function getCustomers(..) {
...
// return a collection of customers
}



How do I return a collection of customers?



Thanks,
Chris.



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Re: [PHP] Re: about PHP

2005-09-20 Thread viraj

On 9/20/05, Srinivasan Kumar [EMAIL PROTECTED] wrote:
hello sir,
I am srinivasan,I am a web designer.I hered about PHP
is the safest pages while using monetory
transaction,

mmm! nop, PHP is not providing anything to secure your transactions
otherthan few fuctions to handle your login sessions and support on
few data encryption functions. but you can develop a good web
application/website using PHP.

so i want to learn about the PHP. so only
I need to view or run the PHP Pages in my local server

PHP is a server side scripting language, to use php for your website,
you have to install php on your webserver and configure PWS to handle
php pages. for this you need to read some manuals and spent some time
on research and development work.

i recomend you to read a lttle and slowly start PHPing.

http://forums.devarticles.com/archive/t-2574/Article-Discussion-Installing-PHP-Under-Personal-Web-Server

~viraj.

(i.e.PWS) so only i am asking how to view the PHP
pages in my local server (i.e.PWS)as a asp page

thanking you for your kindly reply
K.Srinivasan

--- viraj [EMAIL PROTECTED] wrote:

On 9/20/05, Srinivasan Kumar
[EMAIL PROTECTED] wrote:
sir,
this is srinivasan i have to know about the
php.i.e.

Google is your friend! ..the best is to search/read
a bit more about
PHP. follow these links..

http://www.php.net/tut.php

http://www.google.com/search?hl=enlr=oi=defmoreq=define:PHP

how can i view the php pages in windows98
PWS?.could

please be specific. write a little more, explaining
what you want to
do with php and your current knowledge in
programming. so the others
on the list can help you better to solve your issue.

~viraj.

you reply in this regard.
thanking you
k.srinivasan

Gabor Hojtsy [EMAIL PROTECTED] wrote:Dear
Srinivasan Kumar,

Since your problem has nothing to do with
webmastering of the php.net website, it does
not belong in here Please contact
php-general@lists.php.net (a mailing list)
with support questions or see
http://php.net/support
for more support options.

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