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[2003-03-31 03:30 UTC] kju at arcor dot de
After we have updated the PHP-Version from 4.1 to 4.3.1 we have reproducable crashes...
In some of our scripts are exec-commands to use system-commands... With version 4.1 all our scripts were ok...
But after updating the scripts crash at the 26. system-call...
I have a small example here:
--
n=30;
for ($i=0;$i<$n;$i++)
{
exec("echo $i >> c:\test.log");
}
--
For any n<26 the script is running fine...
But when n=26 and above the script crashes and the last entry in the test.log-file is "25" (the 26. system-call).
We have tested the system-calls with exec, system and passthru: same results.
We also have tested many different commands also with commands who don't use the filesystem, f.e. "ping $ip".
We also have increased the "set_time_limit" up to a very high value (much more than we need normally) but the problem is persistent... no "normal ending"...
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Last updated: Tue Oct 28 16:00:01 2025 UTC |
We are using Apache/1.3.26 (Win32) on a WindowsNT4-Server with SP 6a... PHP is running as CGI... Switching the system to use PHP as module isn't easy in our environment, so we couldn't test it... Hmmm, we have tested something else yet, we have started the script at the command-line... the script ends without error! all output is as expected. But there seems to bee no problem with the apache-configuration, because when we turn back to PHP 4.1 all is running well! How we should explain 'crashed'? I will try to do that... Starting a PHP-Script on the WebServer build a new PHP-process on the machine... After finishing the script the process will end... thats the normal way, isn't it? But when n>26 the script (and the process) will never end... We have set the "set_limit_time" to 30 seconds, after 5 minutes the process is still "alive", but it doesn't use CPUTime any longer. No output to the webbrowser is generated. The output "exec("echo $i >> c:\test.log");" is done up to i=26. No hint concerning the abort is given from PHP. What do you think of the source of the error: OS, Apache or PHP?