Get all PHP errors/warnings/… that occurred during the current request

Question

Setting the directive display_errors to true (while having error_reporting set to E_ALL) prints all errors that occured durin

Answer 1

Referring to your first concern

The error handling will still work as long as the:

callback function returns FALSE

function myErrorHandler($error_level, $error_message, $error_file, $error_line, $error_context) {
    // Do your stuff here, e.g. saving messages to an array

    // Tell PHP to also run its error handler
    return false;
}

One solution to store all error-numbers (in an outside array $error_list) could be:

$error_list = array();

$myErrorHandler = function ($error_level, $error_message, $error_file, $error_line, $error_context) use (&$error_list) {
    $error_list[] = $error_level;
    // Tell PHP to also run its error handler
    return false;
};
// Set your own error handler
$old_error_handler = set_error_handler($myErrorHandler);

Another approach is to use Exceptions. There is a nice example in the comments for the function set_error_handler()

Also see:

• Are global variables in PHP considered bad practice? If so, why?
• PHP: Callback function using variables calculated outside of it

Referring to your second concern:

As Egg already mentioned: using register_shutdown_function() is a way to go, and the code in the answer https://stackoverflow.com/a/7313887/771077 shows you how.

But keep in mind, that

• Registering the shutdown- and error-handling functions should be the first thing in code (I fool once had an error in a config file, which was not handled correct, since I registered the error handler afterwards).
• Parse errors might not be handled correctly (See comment in https://stackoverflow.com/a/7313887/771077)