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Make a string lowercase

Multibyte String Functions

mb_strtolower

(PHP 4 >= 4.3.0, PHP 5)

mb_strtolower — Make a string lowercase

Description

string mb_strtolower ( string $str [, string $encoding= mb_internal_encoding() ] )

Returns str with all alphabetic characters converted to lowercase.

Parameters

str: The string being lowercased.
encoding: The encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.

Return Values

str with all alphabetic characters converted to lowercase.

Unicode

For more information about the Unicode properties, please see » http://www.unicode.org/unicode/reports/tr21/.

By contrast to strtolower(), 'alphabetic' is determined by the Unicode character properties. Thus the behaviour of this function is not affected by locale settings and it can convert any characters that have 'alphabetic' property, such as A-umlaut (Ä).

Examples

Example #1 mb_strtolower() example

 <?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = mb_strtolower($str);
echo $str; // Prints mary had a little lamb and she loved it so
?>

See Also

mb_strtoupper() - Make a string uppercase
mb_convert_case() - Perform case folding on a string
strtolower() - Make a string lowercase

Multibyte String Functions

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