Multibyte String Funcții
PHP Manual

mb_strtolower

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

mb_strtolowerMake a string lowercase

Descrierea

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

Returns str with all alphabetic characters converted to lowercase.

Parametri

str

The string being lowercased.

encoding

Parametrul encoding reprezintă codificarea caracterelor. Dacă el este omis, va fi utilizată valoarea internă a codificării caracterelor.

Valorile întoarse

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).

Exemple

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
?>

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Multibyte String Funcții
PHP Manual