IntlChar::isalpha
Check if code point is a letter character
Description
public static boolnull IntlChar::isalpha(intstring $codepoint)
Parameters
-
codepoint
-
The int 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 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{2603}"));
?>
The above example will output:
bool(true)
bool(false)
bool(false)
See Also
- IntlChar::isalnum
- IntlChar::isdigit
- ctype_alpha