IntlChar::isISOControl
Check if code point is an ISO control code
Description
public static boolnull IntlChar::isISOControl(intstring $codepoint)
true for U+0000..U+001f and U+007f..U+009f (general category "Cc").
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 an ISO control code, false if not. Returns null on failure.
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::isISOControl(" "));
var_dump(IntlChar::isISOControl("\n"));
var_dump(IntlChar::isISOControl("\u{200e}"));
?>
The above example will output:
bool(false)
bool(true)
bool(false)