(PHP 7, PHP 8)
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).
codepoint
Um codepoint integer (por exemplo 0x2603
para U+2603 SNOWMAN), ou um caracter codificado como uma string UTF-8 (exemplo "\u{2603}"
)
Returns true
if
codepoint
is an alphanumeric character, false
if not.
Exemplo #1 Testando codepoints diferentes
<?php
var_dump(IntlChar::isalnum("A"));
var_dump(IntlChar::isalnum("1"));
var_dump(IntlChar::isalnum("\u{2603}"));
?>
O exemplo acima irá imprimir:
bool(true) bool(true) bool(false)