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IntlChar::isalnum

(PHP 7)

IntlChar::isalnumCheck if code point is an alphanumeric character

Descrição

public static bool IntlChar::isalnum ( mixed $codepoint )

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).

Parâmetros

codepoint

Um codepoint integer (por exemplo 0x2603 para U+2603 SNOWMAN), ou um caracter codificado como uma string UTF-8 (exemplo "\u{2603}")

Valor Retornado

Returns TRUE if codepoint is an alphanumeric character, FALSE if not.

Exemplos

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)

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