php-general Digest 29 Sep 2008 07:58:34 -0000 Issue 5708
Topics (messages 281076 through 281080):
Re: Regular Expression Backreference in subpattern.
281076 by: Nathan Rixham
Re: error warning while connecting to posgreSQL
281077 by: Nathan Rixham
Re: Concatenating PDF using FPDI
281078 by: Bastien Koert
Re: Questions regarding limits of processes launched by system, exec, passthru
...
281079 by: Bastien Koert
281080 by: Valentin Schmid - ICSurselva AG
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----------------------------------------------------------------------
--- Begin Message ---
Shiplu wrote:
Sorry The previous code was wrong,
Its the correct version,
$x = "a b;c d;e f;";
preg_match('/(?P<keys>\w) (?P<values>\w)/',$x,$m);
print_r($m);
Now I am using backrefrence \1 in in ?P option like (?P<\1>\d+).
and I got the error.
thought I best update for courtesy sake; I spent a good chunk of time on
this yesterday, read all the regex stuff I could find, and the closest I
could get was to use recursive sub patterns, however there was no way to
make a named subpattern name (<keys>) be a backreference / variable.. ie
<$1> <\1> <\\1> will never work.
even using this method you're still going to have to combine the two
arrays to get what you want ($m['keys'] with $m['values'])
Regards & do let me know if you manage!
Nathan
ps: there may be something in the ?>&name syntax; I don't think so though..
--- End Message ---
--- Begin Message ---
Alain Roger wrote:
Hi,
i try to understand the error_reporting statement and to avoid all warning
or error messages.
for example i stop the postgresql service and i try to connect to it.
when error_reporting is set to E_ALL, i get the following warning :
*Warning*: pg_connect()
[function.pg-connect<https://192.168.1.2/se_admin/en/logon/function.pg-connect>]:
Unable to connect to PostgreSQL server: could not connect to server:
Connection refused (0x0000274D/10061) Is the server running on host
"localhost" and accepting TCP/IP connections on port 5432? in *
L:\Webserver\se\log\checklogin.php* on line *48*
Couldn't Connect:
but if i have the error_reporting set to 0, i only get my die message
"Couldn't connect".
i would like to know if i let the setting "E_ALL" do i have a way how to not
display the warning message to end users but to display only "Couldn't
connect" ?
in fact to have the same behavior as error_reporting set to 0.
thx.
additionally.. the @ operator (suppress errors)
@pg_connect(...) = no error displayed only die('message shown')
--- End Message ---
--- Begin Message ---
On Sun, Sep 28, 2008 at 3:33 AM, giga501 <[EMAIL PROTECTED]> wrote:
>
> Hi -
>
> I am trying to attach a pre-defined PDF to a file generated at runtime
> (invoice.pdf).
> I have attached the test.php that I used to concatenate 2 pdfs.
> http://www.nabble.com/file/p19709464/test.php test.php
>
> I have also verified that I have the latest version of FPDF and FPDI.
> However, here is the error I get on executing the file on my server (shared
> host using CPanel) :
> FPDF error: Unable to find xref table - Maybe a Problem with
> 'auto_detect_line_endings'
>
> The functionality works fine on my localhost (WAMPServer, WinXP), so I am
> wondering if there are any other server parameters to look at ?
>
> Any ideas on what is wrong here? Thanks in advance.
> --
> View this message in context:
> http://www.nabble.com/Concatenating-PDF-using-FPDI-tp19709464p19709464.html
> Sent from the PHP - General mailing list archive at Nabble.com.
>
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
Its a setting in the php.ini file that may need to be changed. Line endings
change from Winblows to Unix/Linux servers, so it may need to be reset
--
Bastien
Cat, the other other white meat
--- End Message ---
--- Begin Message ---
On Sat, Sep 27, 2008 at 12:50 PM, Richard Lynch <[EMAIL PROTECTED]> wrote:
> memory_limit and time_limit are implemented down in the guts of the PHP
> interpreter; They are not magic.
>
> They can't do diddly when PHP is running some other binary...
> ________________________________________
> From: Thodoris [EMAIL PROTECTED]
> Sent: Saturday, September 27, 2008 8:24 AM
> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: Re: [PHP] Questions regarding limits of processes launched by
> system, exec, passthru ...
>
> > Hello all,
> >
> > Is there a way to limit the memory consumption and / or the CPU
> > consumption of processes launched by the php functions system,
> > exec, passthru, proc_open and shell_exec?
> >
> > We use mod_php with an apache (mpm-prefork) on Linux.
> >
> > The following settings don't have any effect at all:
> > PHP:
> > max_execution_time 30
> > memory_limit 8M
> > Apache:
> > RLimitCPU 30 30
> > RLimitMEM 8388608 8388608
> >
> > The limits above do have effect on php-scripts (without system calls)
> > and on CGIs (as well on processes launched by CGIs).
> >
> > Any Ideas?
> >
> > Kind Regards
> > valli
> >
> >
> > PS: I tested it with the following two scripts:
> > system_memorytest.php
> > =====================
> > <html>
> > <head>
> > <title>php-systemcall-memory test</title>
> > </head>
> > <body>
> > php-systemcall-memory test<br>
> > ... and here's the system call:<br>
> > <pre>
> > <?php
> > $cmd = '/usr/bin/perl -e \'
> > $| = 1;
> > print "start of the systemcall<br>\n";
> > $s = "teststr_";
> > while (1) {
> > print "len=".length($s)."<br>\n";
> > sleep(1);
> > $s .= $s;
> > }
> > \'';
> > print htmlspecialchars($cmd);
> > ?>
> > </pre>
> > <?php
> > ob_flush();
> > flush();
> > system($cmd);
> > ?>
> > </body>
> > </html>
> >
> >
> > system_timeouttest.php
> > ======================
> > <html>
> > <head>
> > <title>php-systemcall-timeout test</title>
> > </head>
> > <body>
> > php-systemcall-timeout test<br>
> > ... and here's the system call:<br>
> > <pre>
> > <?php
> > $cmd = '/usr/bin/perl -e \'
> > $| = 1;
> > print "start of the systemcall<br>\n";
> > $i = 0;
> > while (1) {
> > if (($i % 10000000) == 0) {
> > print "i=".$i."<br>\n";
> > }
> > $i += 1;
> > }
> > \'';
> > print htmlspecialchars($cmd);
> > ?>
> > </pre>
> > <?php
> > ob_flush();
> > flush();
> > system($cmd);
> > ?>
> > </body>
> > </html>
> >
> >
> >
> >
> >
>
> Well as far as I know there are already memory limits to every php
> process and you define this in php.ini. I recently made a script that
> used to exhaust all the given memory and I needed to increase the limit.
>
> memory_limit = 16M
>
> You can change this to whatever you wish to control. You can also
> change these if you want to control execution time:
>
> max_execution_time = 30 ; Maximum execution time of each script, in
> seconds
> max_input_time = 60 ; Maximum amount of time each script may spend
> parsing request data
>
>
> I haven't seen a way to control disk access space but I guess there are
> two ways to do that. One is quota the space that php writes in or do
> this by the programming way (meaning that you may check the space before
> you write something).
>
> As for the CPU I think there are OS specific techniques to control
> resource usage in general but it depends on what *nix system you use
> (FreeBSD, Linux etc).
>
>
> ------------
> Thodoris
>
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>
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Assuming a linux hosted server, see about getting a user created with ulimit
(which limits the resources on calls to system) if you can use that user
--
Bastien
Cat, the other other white meat
--- End Message ---
--- Begin Message ---
Hello all again,
It seems that Problem can only be solved by one of the following ways:
1. Don't use mod_php; use CGI or FastCGI instead. Then it would be
possible to limit the resources via RLimitCPU / RLimitMEM.
2. Use one of the following apache core patch
http://archives.neohapsis.com/archives/openbsd/2005-12/1436.html
or the following apache module:
http://www.ucc.asn.au/~dagobah/things/mod_rlimit.c
(Unfortunately only for apache 1.3)
Thanks for all your answers.
Kind regards
valli
Valentin Schmid - ICSurselva AG wrote:
Hello all,
Is there a way to limit the memory consumption and / or the CPU
consumption of processes launched by the php functions system,
exec, passthru, proc_open and shell_exec?
We use mod_php with an apache (mpm-prefork) on Linux.
The following settings don't have any effect at all:
PHP:
max_execution_time 30
memory_limit 8M
Apache:
RLimitCPU 30 30
RLimitMEM 8388608 8388608
The limits above do have effect on php-scripts (without system calls)
and on CGIs (as well on processes launched by CGIs).
Any Ideas?
Kind Regards
valli
PS: I tested it with the following two scripts:
system_memorytest.php
=====================
<html>
<head>
<title>php-systemcall-memory test</title>
</head>
<body>
php-systemcall-memory test<br>
... and here's the system call:<br>
<pre>
<?php
$cmd = '/usr/bin/perl -e \'
$| = 1;
print "start of the systemcall<br>\n";
$s = "teststr_";
while (1) {
print "len=".length($s)."<br>\n";
sleep(1);
$s .= $s;
}
\'';
print htmlspecialchars($cmd);
?>
</pre>
<?php
ob_flush();
flush();
system($cmd);
?>
</body>
</html>
system_timeouttest.php
======================
<html>
<head>
<title>php-systemcall-timeout test</title>
</head>
<body>
php-systemcall-timeout test<br>
... and here's the system call:<br>
<pre>
<?php
$cmd = '/usr/bin/perl -e \'
$| = 1;
print "start of the systemcall<br>\n";
$i = 0;
while (1) {
if (($i % 10000000) == 0) {
print "i=".$i."<br>\n";
}
$i += 1;
}
\'';
print htmlspecialchars($cmd);
?>
</pre>
<?php
ob_flush();
flush();
system($cmd);
?>
</body>
</html>
--- End Message ---
