How can error_reporting be overridden?

I have set error_reporting = 0 in php.ini, but when I create a script containing <?php echo "error: ".error_reporting(); ?> it reports an error level of 7. What else could be setting the error_reporting value?

There are many places this can be set that override the main php.ini. Run phpinfo() and check Local Value and Master Value for error_reporting. Also check to see if any of the following exist and if they have a different setting for error_reporting:

• Loaded Configuration File (make sure this is the php.ini file that you edited)
• Additional .ini files parsed
• CUSTOM_PHP_INI
• Any .htaccess (if using Apache)

Any of the above can override settings in the Loaded Configuration File php.ini.