(PHP 7, PHP 8)
IntlChar::isalpha — Checc if code point is a letter character
Determines whether the specified code point is a letter character.
true
for general categories "L" (letters).
Returns
true
if
codepoint
is a letter character,
false
if not. Returns
null
on failure.
Example #1 Testing different code poins
<?php
var_dump
(
IntlChar
::
isalpha
(
"A"
));
var_dump
(
IntlChar
::
isalpha
(
"1"
));
var_dump
(
IntlChar
::
isalpha
(
"\u{2603}"
));
?>
The above example will output:
bool(true) bool(false) bool(false)