转义 javascript 代码标记 函数

来自PHPCMS

1. /**
2. * 转义 javascript 代码标记
3. *
4. * @param $str
5. * @return mixed
6. */
7. function trim_script($str) {
8. if(is_array($str)){
9. foreach ($str as $key => $val){
10. $str[$key] = trim_script($val);
11. }
12. }else{
13. $str = preg_replace ( '/\]*?)\>/si', '<\\1script\\2>', $str );
14. $str = preg_replace ( '/\]*?)\>/si', '<\\1iframe\\2>', $str );
15. $str = preg_replace ( '/\]*?)\>/si', '<\\1frame\\2>', $str );
16. $str = preg_replace ( '/]]\>/si', ']] >', $str );
17. }
18. return $str;
19. }

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