Sanitizes a hex color.

Description

Returns either '', a 3 or 6 digit hex color (with #), or nothing.
For sanitizing values without a #, see sanitize_hex_color_no_hash() .

Parameters

$colorstringrequired

Return

Source

function sanitize_hex_color( $color ) {
	if ( '' === $color ) {
		return '';
	}

	// 3 or 6 hex digits, or the empty string.
	if ( preg_match( '|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) ) {
		return $color;
	}
}

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