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# strtolower

(PHP 3 <= 3.0.18, PHP 4 >= 4.0.0)

strtolower -- Make a string lowercase

## Description

``string strtolower` (string str)`

Returns `string` with all alphabetic characters converted to lowercase.

Note that 'alphabetic' is determined by the current locale. This means that in i.e. the default "C" locale, characters such as umlaut-A (Ä) will not be converted.

Example 1. strtolower() example
    $str = "Mary Had A Little Lamb and She LOVED It So";
    $str = strtolower($str);
    print $str; # Prints mary had a little lamb and she loved it so

See also strtoupper(), ucfirst(), and ucwords().

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