mb_convert_case
(PHP 4 >= 4.3.0)
mb_convert_case -- Perform case folding on a string
Description
string mb_convert_case ( string str, int mode [, string
encoding])
mb_convert_case() returns case folded version of string
converted in the way specified by mode.
mode can be one of MB_CASE_UPPER, MB_CASE_LOWER or MB_CASE_TITLE.
encoding specifies the encoding of str; if omitted, the
internal character encoding value will be used.
The return value is str with the appropriate case folding
applied.
By contrast to the standard case folding functions such
as strtolower() and strtoupper(), case folding is performed
on the basis of 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).
For more information about the Unicode properties, please
see http://www.unicode.org/unicode/reports/tr21/.
Example 1. mb_convert_case() example
<?php
$str = "mary had a Little lamb and she loved it so";
$str = mb_convert_case($str, MB_CASE_UPPER, "UTF-8");
echo $str; // Prints MARY HAD A LITTLE LAMB AND SHE LOVED
IT SO
$str = mb_convert_case($str, MB_CASE_TITLE, "UTF-8");
echo $str; // Prints Mary Had A Little Lamb And She Loved
It So
?>
See also mb_strtolower(), mb_strtoupper(), strtolower()
and strtoupper().
