I am having the problem with php memory limit. I have increased php memory to 128MB in php.ini but it is not updated. It still show i have 32MB php memory limit. When I check php info file, it shows 128MB. When I check php limit information with TPC! Memory Usage plugin, it shows 32MB. I talk to web hosting, they told they have increased it to 128MB but why I am still having 32MB.
When I add php_value memory_limit 16M to .htaccess file it shows 500 server error to my site.
My wordpress memory limit is set to 128Mb so there is no problem with wp memory.