The restore_error_handler Function

The restore_error_handler function restores the previous error handler, which was set before calling set_error_handler. This function does not take any parameters and always returns true.

Syntax

restore_error_handler();

Example

Let's create a custom error handler and then restore the standard one:

<?php
	function customErrorHandler($errno, $errstr) {
		echo "Custom error: [$errno] $errstr";
	}
	
	set_error_handler("customErrorHandler");
	echo $test; // Will call the custom handler
	
	restore_error_handler();
	echo $test; // Now will call the standard PHP handler
?>

Example

Let's check the return value of the function:

<?php
	$res = restore_error_handler();
	var_dump($res);
?>

Code execution result:

true