GoLang IntlChar::isalnum

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PHP IntlChar::isalnum

PHP original manual for IntlChar::isalnum [ show | php.net ]

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