Memory limit is used for all scripts instead of one?

Warning: Could not execute mail delivery program in /local/Web/sites/phpweb/bugs.php on line 419 Mail not sent! Please send this page in a mail to php-dev@lists.php.net manually. ------------------------------------------------------------------------------------------ Hi there! As far as I understand, the option "memory_limit" sets the mem-limit for ONE script. I installed PHP as a Apache module and I set the memory_limit to 16M (via php.ini). When I allocate 8M of memory, all works fine. But when two different scripts each allocate 8M, I will get sometimes the following message: Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 4194304 bytes) in /usr/local/httpd/htdocs/testxx.php on line 6 Both scripts (testx.php and testxx.php) contain the following code: <?php $str = "x"; for($i=0; $i<23; $i++) { $str .= $str; echo strlen($str) . "<br>"; } ?> First, 1 byte will be allocated, then 2, then 4 and so on. The last allocated string has a size of 8M. It's a little difficult to reproduce the problem because I have to call both scripts exactly at the same time from my browser. But, as I said, sometimes I get the described error-message. My question is: Is this normal and memory_limit sets the limit for ALL scripts that are currently running or is this a bug? Thanks in advance! ... tobias wiersch from germany