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mb_strtolower

Returns string with all alphabetic characters converted to lowercase with optional encoding parameter. Test mb_strtolower online.

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

The encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.

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mb_strtolower

(PHP 4 >= 4.3.0, PHP 5, PHP 7)

mb_strtolowerMake 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
?>

Example #2 mb_strtolower() example with non-Latin UTF-8 text

<?php
$str 
"Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός";
$str mb_strtolower($str'UTF-8');
echo 
$str// Prints τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός
?>

See Also


PHP Documentation

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