Why Isn't My Php.Ini File Taking Effect
A PHP initialization file (php5.ini) is not always immediately recognized by the server. Here are tips for Linux and Windows Shared Hosting to get your PHP initialization file to take effect immediately.
NOTE: To check whether your php5.ini file takes effect, open a plain text editor and create a file called phpinfo.php. Insert the following line: <? phpinfo(); ?>. Save this file to the root of your Web site and then browse to yourdomain.com/phpinfo.php to test the settings.