(PHP 7)
IntlChar::isIDIgnorable — Check if code point is an ignorable character
public static IntlChar::isIDIgnorable ( mixed $codepoint ) : bool
Determines if the specified character should be regarded as an ignorable character in an identifier.
true for characters with general category "Cf" (format controls) as well as non-whitespace ISO controls (U+0000..U+0008, U+000E..U+001B, U+007F..U+009F).
Note:
Note that Unicode just recommends to ignore Cf (format controls).
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}")
Returns true if codepoint is ignorable in identifiers, false if not.
Example #1 Testing different code points
<?php
var_dump(IntlChar::isIDIgnorable("A"));
var_dump(IntlChar::isIDIgnorable(" "));
var_dump(IntlChar::isIDIgnorable("\u{007F}"));
?> The above example will output:
bool(false) bool(false) bool(true)
IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/intlchar.isidignorable.php