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PHP strtolower() Function

< PHP String Reference

Example

Convert all characters to lowercase:

<?php
echo strtolower("Hello WORLD.");
?>

Definition and Usage

The strtolower() function converts a string to lowercase.

Note: This function is binary-safe.

Related functions:

strtoupper() - converts a string to uppercase
lcfirst() - converts the first character of a string to lowercase
ucfirst() - converts the first character of a string to uppercase
href="func_string_ucwords.html">ucwords() - converts the first character of each word in a string to uppercase

Syntax

strtolower(string)

Parameter	Description
string	Required. Specifies the string to convert

Technical Details

Return Value:	Returns the the lowercased string
PHP Version:	4+

< PHP String Reference