Question

While I’m trying to handle WARNING messages, I’m getting error for global variable/array (on last print_r line):

Notice: Undefined variable: errors in……..

I tried to declare $errors outside of function as well but same problem.

Thanks

My code:

set_error_handler('validation_error_handler', E_WARNING);

function validation_error_handler($error_no, $error_message)
{
    global $errors;
    $errors[] = $error_message;
}

echo '<pre>'; print_r($errors); echo '</pre>';

Answer 1

You need to declare $errors as an array first:

set_error_handler('validation_error_handler', E_WARNING);
$errors = array(); // Add this...

Update:

set_error_handler('validation_error_handler', E_WARNING);

$errors = array();

function validation_error_handler($error_no, $error_message)
{
    global $errors;
    $errors[] = $error_message;
}

echo preg_match();

echo '<pre>'; print_r($errors); echo '</pre>';

This will print

<pre>Array
(
    [0] => preg_match() expects at least 2 parameters, 0 given
)
</pre>

Make sure your error/warning occurs before you print_r($errors);