Util
全角trim
`php
public static function mb_trim($str) {
$str = preg_replace('#^[ ]+#u', '', $str);
$str = preg_replace('#[ ]+$#u', '', $str);
return $str;
}
`
`php
public static function mb_trim($str) {
$str = preg_replace('#^[ ]+#u', '', $str);
$str = preg_replace('#[ ]+$#u', '', $str);
return $str;
}
`