valid_unicode() │ WP 2.7.0

Determines if a Unicode codepoint is valid.

No Hooks.

Return

true|false. Whether or not the codepoint is a valid Unicode codepoint.

Usage

valid_unicode( $i );

$i(int) (required)

Unicode codepoint.

Changelog

valid_unicode() valid unicode code ^{WP 6.7.1}

function valid_unicode( $i ) {
	$i = (int) $i;

	return ( 0x9 === $i || 0xa === $i || 0xd === $i ||
		( 0x20 <= $i && $i <= 0xd7ff ) ||
		( 0xe000 <= $i && $i <= 0xfffd ) ||
		( 0x10000 <= $i && $i <= 0x10ffff )
	);
}