IntlChar::isalpha
(PHP 7, PHP 8)
IntlChar::isalpha — Check if code point is a letter character
Description
public static IntlChar::isalpha(int|string
$codepoint): ?bool
Determines whether the specified code point is a letter character. true for general categories "L" (letters).
Parameters
-
codepoint -
The int codepoint value (e.g.
0x2603for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g."\u")
Return Values
Returns true if
codepoint is a letter character, false if not. Returns null on failure.
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::isalpha("A"));
var_dump(IntlChar::isalpha("1"));
var_dump(IntlChar::isalpha("\u"));
?>
The above example will output:
bool(true) bool(false) bool(false)
See Also
- IntlChar::isalnum() - Check if code point is an alphanumeric character
- IntlChar::isdigit() - Check if code point is a digit character
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