(PHP 7, PHP 8)
IntlChar::istitle — Check if code point is a titlecase letter
$codepoint
): ?boolDetermines whether the specified code point is a titlecase letter.
true
for general category "Lt" (titlecase letter).
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}"
)
Returns true
if
codepoint
is a titlecase letter, false
if not. Returns null
on failure.
Example #1 Testing different code points
<?phpvar_dump(IntlChar::istitle("A"));var_dump(IntlChar::istitle("a"));var_dump(IntlChar::istitle("Φ"));var_dump(IntlChar::istitle("φ"));var_dump(IntlChar::istitle("1"));?>
The above example will output:
bool(false) bool(true) bool(false) bool(true) bool(false)