$str=strtolower($str); break; } $str=preg_replace($pattern,$replace,$str); return$str; } ?> Depending on what you are trying to achieve you would call like this: ...
2020年7月20日 PHPstrtolower()函数(PHP strtolower() function) strtolower() functionis a string function, it accepts the string and returns an lowercase string. st...