如何从js代码中获取字符串值

时间:2012-10-08 16:42:54

标签: php javascript preg-match urldecode

我想获取字符串值,然后使用urldecode()

的Javascript

document.write(unescape('%46%43%20%42%72%61%73%6f%76%20%76%73%2e%20%43%53%4d%53%20%49%61%73%69'));

PHP

$string = "document.write(unescape('%46%43%20%42%72%61%73%6f%76%20%76%73%2e%20%43%53%4d%53%20%49%61%73%69'));";

preg_match('/document.write(unescape(\'.*\'));/', $string,$matches);
var_dump($matches);

但这会返回array(0) { }

1 个答案:

答案 0 :(得分:0)

你可以尝试

$string = "document.write(unescape('%46%43%20%42%72%61%73%6f%76%20%76%73%2e%20%43%53%4d%53%20%49%61%73%69'));";
preg_match('/document.write\(unescape\(\'(.*)\'\)\);/', $string,$matches);
var_dump($matches[1]);

输出

string '%46%43%20%42%72%61%73%6f%76%20%76%73%2e%20%43%53%4d%53%20%49%61%73%69' (length=69)