Allowed memory size of 33554432 bytes exhausted (tried to allocate 5232314 bytes) code example

Example 1: Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 119541600 bytes) in C:\xampp\htdocs\backup-vice.php on line 67

<?php 
ini_set('memory_limit', '1024M'); // or you could use 1G

?>

Example 2: Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php

ini_set('memory_limit', '-1');