IntlChar::istitle
Check if code point is a titlecase letter
Description
public static boolnull IntlChar::istitle(intstring $codepoint)
true for general category "Lt" (titlecase letter).
Parameters
-
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}")
Return Values
Returns true if
codepoint is a titlecase letter, false if not. Returns null on failure.
Examples
Example #1 Testing different code points
<?php
// Latin Capital Letter Dz with Caron U+01C4
var_dump(IntlChar::istitle("DŽ"));
// Latin Capital Letter D with Small Letter Z with Caron U+01C5
var_dump(IntlChar::istitle("Dž"));
// Latin Small Letter Dz with Caron U+01C6
var_dump(IntlChar::istitle("dž"));
// Greek Capital Letter Alpha with Prosgegrammeni U+1FBC
var_dump(IntlChar::istitle("ᾼ"));
// Greek Small Letter Alpha with Ypogegrammeni U+1FB3
var_dump(IntlChar::istitle("ᾳ"));
// Greek Capital Letter Alpha U+0391
var_dump(IntlChar::istitle("Α"));
?>
The above example will output:
bool(false)
bool(true)
bool(false)
bool(true)
bool(false)
bool(false)
See Also
- IntlChar::isupper
- IntlChar::islower
- IntlChar::totitle