PHP 7.0.6 Released

IntlChar::isalnum

(PHP 7)

IntlChar::isalnum — Check if code point is an alphanumeric character

Description

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).

Parameters

codepoint: The integer 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 an alphanumeric character, FALSE if not.

Examples

Example #1 Testing different code points


<?php
var_dump(IntlChar::isalnum("A"));
var_dump(IntlChar::isalnum("1"));
var_dump(IntlChar::isalnum("\u{2603}"));
?>

The above example will output:

bool(true)
bool(true)
bool(false)

See Also

IntlChar::isalpha() - Check if code point is a letter character
IntlChar::isdigit() - Check if code point is a digit character

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