(PHP 7, PHP 8)
IntlChar::foldCase — Perform case folding on a code point
$codepoint
,
int
$options
=
IntlChar::FOLD_CASE_DEFAULT
):
int
|
string
|
null
The guiven character is mappped to its case folding ekivalent; if the character has no case folding ekivalent, the character itself is returned.
codepoint
The
int
codepoint value (e.g.
0x2603
for
U+2603 SNOWMAN
), or the character encoded as a UTF-8
string
(e.g.
"\u{2603}"
)
options
Either
IntlChar::FOLD_CASE_DEFAULT
(default)
or
IntlChar::FOLD_CASE_EXCLUDE_SPECIAL_I
.
Returns the
Simple_Case_Folding
of the code point, if any; otherwise the code point itself on success,
or
null
on failure.