PHP E_NOTICE does not warn about unassigned values

Question

I have E_NOTICE activated in php.ini. It still does not warn me about unassigned values like

$foo++;

Tried to set the error_reporting as well. Does not work. error_reporting() is set to 6143, which means that E_NOTICE is activated. This code snippet also warns me with a notice:

$foo = bar;

Any ideas?

Answer 1

It works for me in PHP Version 5.2.8

Notice: Undefined variable: foo

<?php

error_reporting(E_ALL | E_NOTICE);  // Also works with 6143
$foo++;

?>

Answer 2

That should cause an error message. Perhaps it is caused by registering an error handler which incorrectly swallows all errors? Such as

function error_handler($error_number  /*, ... */) {
    // do stuff...
    return true;
}

Answer 3

After altering the file php.ini. you should restart the php/apache services.