(PHP 4 >= 4.3.0, PHP 5)
mb_convert_case — Perform case folding on a string
$str
, int $mode = MB_CASE_UPPER
[, string $encoding = mb_internal_encoding()
] )
Performs case folding on a string, converted in the way specified by
mode.
str
The string being converted.
mode
The mode of the conversion. It can be one of
MB_CASE_UPPER,
MB_CASE_LOWER, or
MB_CASE_TITLE.
encoding
Parametr encoding
określa kodowanie znaków. Jeśli nie jest podany, to zostanie użyta wewnętrzna wartość
kodowania zanków.
A case folded version of string converted in the
way specified by mode.
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/.
Przykład #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
?>
Przykład #2 mb_convert_case() example with non-Latin UTF-8 text
<?php
$str = "Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός";
$str = mb_convert_case($str, MB_CASE_UPPER, "UTF-8");
echo $str; // Prints ΤΆΧΙΣΤΗ ΑΛΏΠΗΞ ΒΑΦΉΣ ΨΗΜΈΝΗ ΓΗ, ΔΡΑΣΚΕΛΊΖΕΙ ΥΠΈΡ ΝΩΘΡΟΎ ΚΥΝΌΣ
$str = mb_convert_case($str, MB_CASE_TITLE, "UTF-8");
echo $str; // Prints Τάχιστη Αλώπηξ Βαφήσ Ψημένη Γη, Δρασκελίζει Υπέρ Νωθρού Κυνόσ
?>