public static function emails(string $str) {
		preg_match_all(self::REGEXP_EMAIL, $str, $matches);
		return $matches[0] ?? false;
	}
public static function emails(string $str) {
		preg_match_all(self::REGEXP_EMAIL, $str, $matches);
		return $matches[0] ?? false;
	}
public static function emails ( string $ str ) { preg_match_all ( self :: REGEXP_EMAIL , $ str , $ matches ) ; return $ matches [ 0 ] ?? false ; }
Match all email addresses

@param string $str
@return boolean|array
Match all email addresses