php preg_replace or str_replace code example

Example 1: php str_replace

<?php
//str_replace("Original Value", "Value to be replaced", "String");
$result = str_replace("1", "2", "This is number 1");
// Output: This is number 2
?>

Example 2: str_replace php

echo str_replace("worss","world","Hello worss in PHP!!");