(PHP 7)
Check if code point is an alphanumeric character
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}")
Returns:
Returns TRUE if codepoint is an alphanumeric character, FALSE if not.
Examples:
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:
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