php 字符串过滤特殊字符

* mb_ord.php

* test:

$s = " ✧＼\ ٩( ‘㉨’ )و /／✧o(๑◕ ㉨ ◕๑)ブ~ヘー﹣✿挥爪~⊂(˃̶͈̀㉨ ˂̶͈́ ⊂ )))≡=─ ";
echo Str::filter($s).PHP_EOL;

 

$ php mb_ord.php 
 \ (  ) /o(  )~挥爪~(   )))=