I've got E_DEPRECATED error messages even though error_reporting=E_ALL & ~E_DEPRECATED & ~E_STRICT is set in php.ini.

The problem

E_ALL includes all errors and warnings, as supported, except of level E_STRICT prior to PHP 5.4.0. A comment in php.ini claims that E_ALL & ~E_NOTICE & ~E_STRICT will show all errors, except for notices and coding standards warnings. Furthermore it recommends to use E_ALL & ~E_DEPRECATED & ~E_STRICT in production environments. But it didn't work for me: E_DEPRECATED error messages still showed up.

Solution

On the page PHP Manual: Predefined Constants you can find all available error constants. If you compose the value for error_reporting by using all single constants, you're able to leave any unwanted constant out:

            
error_reporting = E_ERROR | E_WARNING | E_PARSE | E_NOTICE | E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_COMPILE_WARNING | E_USER_ERROR | E_USER_WARNING | E_USER_NOTICE | E_RECOVERABLE_ERROR | E_USER_DEPRECATED | E_STRICT
            
        

In the line above the constant E_DEPRECATED is missing. This does the trick for me. Dont' forget to restart Apache after changing php.ini.