Introduction
PHP is a server scripting language, and It is a powerful tool for making interactive and dynamic Web-pages. I have used WampServer 2.2 for following example.
<?php $str = 'Techstudy - the Debugging Solution website'; echo preg_replace('/the/', 'Best', $str, 1)."\n"; ?>
Result
![Write a PHP script to replace the first 'the' of the following string with 'best'](https://techstudys.com/wp-content/uploads/2021/07/8-1-7.png)