Question

How to use set_error_handler() to set a user-defined function to handle errors in PHP

Answer 1

function error_function($errno, $errstr, $errfile, $errline) 
{
  echo "Custom error: [$errno] $errstr<br />";
  echo "Error on line $errline in $errfile<br >";
  die();
}

//set error handler
set_error_handler("error_function");

$number = 0;

//trigger error
if ($number ==  0) 
  trigger_error("custom error: number = 0");
   
/*
run:

Custom error: [1024] custom error: number = 0
Error on line 22 in C:\xampp\htdocs\knowrex.com\test.php
 
*/

 

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