Table of Contents

The strtolower() function is used to converts a string to lowercase. All other special characters or numeric characters in the string remains unchanged. This function is binary-safe.

Syntax:

strtolower(string)
PHP

string – This parameter is required. It specifies the string to convert.

Example:

<?php$str = 'Welcome to PHP Tutorials!';echo strtolower($str);   // Output : welcome to php tutorials!?>
PHP