PHP 5 disable strict standards error

Question

Do you want to disable error reporting, or just prevent the user from seeing it? It’s usually a good idea to log errors, even on a production site.

# in your PHP code:
ini_set('display_errors', '0');     # don't show any errors...
error_reporting(E_ALL | E_STRICT);  # ...but do log them

They will be logged to your standard system log, or use the error_log directive to specify exactly where you want errors to go.

For no errors.

error_reporting(0);

or for just not strict

error_reporting(E_ALL ^ E_STRICT);

and if you ever want to display all errors again, use

error_reporting(-1);

All above solutions are correct. But, when we are talking about a normal PHP application, they have to included in every page, that it requires. A way to solve this, is through .htaccess at root folder. Just to hide the errors. [Put one of the followling lines in the file]

php_flag display_errors off

Or

php_value display_errors 0

Next, to set the error reporting

php_value error_reporting 30719

If you are wondering how the value 30719 came, E_ALL (32767), E_STRICT (2048) are actually constant that hold numeric value and (32767 - 2048 = 30719)

The default value of error_reporting flag is E_ALL & ~E_NOTICE if not set in php.ini. But in some installation (particularly installations targeting development environments) has E_ALL | E_STRICT set as value of this flag (this is the recommended value during development). In some cases, specially when you'll want to run some open source projects, that was developed prior to PHP 5.3 era and not yet updated with best practices defined by PHP 5.3, in your development environment, you'll probably run into getting some messages like you are getting. The best way to cope up on this situation, is to set only E_ALL as the value of error_reporting flag, either in php.ini or in code (probably in a front-controller like index.php in web-root as follows:

if(defined('E_STRICT')){
    error_reporting(E_ALL);
}

In php.ini set :

error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT

WordPress

If you work in the wordpress environment, Wordpress sets the error level in file wp-includes/load.php in function wp_debug_mode(). So you have to change the level AFTER this function has been called ( in a file not checked into git so that's development only ), or either modify directly the error_reporting() call