(PHP 7)
IntlChar::isalnum — Check if code point is an alphanumeric character
Determines whether the specified code point is an alphanumeric character (letter or digit). TRUE for characters with general categories "L" (letters) and "Nd" (decimal digit numbers).
Returns TRUE if
codepoint is an alphanumeric character, FALSE if not.
Exemple #1 Test de différents codepoint
<?php
var_dump(IntlChar::isalnum("A"));
var_dump(IntlChar::isalnum("1"));
var_dump(IntlChar::isalnum("\u{2603}"));
?>
L'exemple ci-dessus va afficher :
bool(true) bool(true) bool(false)