javascript - 将这个简单的 Javascript 转换为 PHP

Question

var b=new Array(102,50,57,101,52,55,53,54,49,57,55,97,100,55,52,99,48,56,53,100,55,97,98,53,101,101,102,100,49,49,101,54,50,97,100,48,97,101,49,52,38,104,61,50,52,61,56,55,101,99,102,110,111,51,55,78,109,114,111,57,101,54,102,51,101,38,101,56,54,56,53,53,54,54,53,51,56,102,57,54,52,61,100,101,50,57,49,99,105,50,102,95,116,54,102,101,115,51,105,100,48,108,116,57,105,104,54,63,48,112,104,112,48,46,121,116,110,117,111,98);
var p=new Array(0,0,0,0,1,0,1,1,1,0,0,1,0,1,1,1,1,1,0,1,1,0,1,1,0,1,1,0,0,0,0,0,1,0,1,1,0,1,0,0,0,0,0,0,0,1,0,0,1,1,0,1,1,0,0,1,1,1,1,0,0,0,1,0,0,1,0,1,0,0,1,1,1,1,0,1,0,0,1,0,0,1,1,0,0,0,0,0,1,0,0,1,1,0,0,0,1,0,1,0,0,1,1,0,1,1,0,1,0,1,1,1,0,1,1,1,1,1,1,1);         
function c(b,p) {
    a='';s=String.fromCharCode;
    for(i=0;i<b.length;i++) {if(p[i])a=s(b[i])+a;else a+=s(b[i]);}
    return a;
}

我正在尝试将上述 JavaScript 代码转换为 PHP，但由于在某些方面它被压缩，使其更加困惑，所以我遇到了很大的困难。非常感谢您的帮助!

更新:这是我尝试过的:

<?php
          $b=array(102,50,57,101,52,55,53,54,49,57,55,97,100,55,52,99,48,56,53,100,55,97,98,53,101,101,102,100,49,49,101,54,50,97,100,48,97,101,49,52,38,104,61,50,52,61,56,55,101,99,102,110,111,51,55,78,109,114,111,57,101,54,102,51,101,38,101,56,54,56,53,53,54,54,53,51,56,102,57,54,52,61,100,101,50,57,49,99,105,50,102,95,116,54,102,101,115,51,105,100,48,108,116,57,105,104,54,63,48,112,104,112,48,46,121,116,110,117,111,98);
          $p=array(0,0,0,0,1,0,1,1,1,0,0,1,0,1,1,1,1,1,0,1,1,0,1,1,0,1,1,0,0,0,0,0,1,0,1,1,0,1,0,0,0,0,0,0,0,1,0,0,1,1,0,1,1,0,0,1,1,1,1,0,0,0,1,0,0,1,0,1,0,0,1,1,1,1,0,1,0,0,1,0,0,1,1,0,0,0,0,0,1,0,0,1,1,0,0,0,1,0,1,0,0,1,1,0,1,1,0,1,0,1,1,1,0,1,1,1,1,1,1,1);     
$a='';
class String {
    public static function fromCharCode() {
        return array_reduce(func_get_args(),function($d,$e){$d.=chr($e);return $d;});
    }
}
for($i=0;$i<b.length;$i++) {if($p[$i])$a=String::fromCharCode($b[$i]) . $a;else $a+=String::fromCharCode($b[$i]);}
echo $a; ?>

它返回空白。

如何将这个简单的 Javascript 转换为 PHP？

Answer 1

最好的方法是使用 chr .

chr — Return a specific character






<pre><code>$b = array(102,50,57,101,52,55,53,54,49,57,55,97,100,55,52,99,48,56,53,100,55,97,98,53,101,101,102,100,49,49,101,54,50,97,100,48,97,101,49,52,38,104,61,50,52,61,56,55,101,99,102,110,111,51,55,78,109,114,111,57,101,54,102,51,101,38,101,56,54,56,53,53,54,54,53,51,56,102,57,54,52,61,100,101,50,57,49,99,105,50,102,95,116,54,102,101,115,51,105,100,48,108,116,57,105,104,54,63,48,112,104,112,48,46,121,116,110,117,111,98);
$p = array(0,0,0,0,1,0,1,1,1,0,0,1,0,1,1,1,1,1,0,1,1,0,1,1,0,1,1,0,0,0,0,0,1,0,1,1,0,1,0,0,0,0,0,0,0,1,0,0,1,1,0,1,1,0,0,1,1,1,1,0,0,0,1,0,0,1,0,1,0,0,1,1,1,1,0,1,0,0,1,0,0,1,1,0,0,0,0,0,1,0,0,1,1,0,0,0,1,0,1,0,0,1,1,0,1,1,0,1,0,1,1,1,0,1,1,1,1,1,1,1);

function c($b,$p) {
$a='';
for($i=0;$i<count($b);$i++){
if($p[$i]){
$a=chr($b[$i]) . $a;
}else{
$a.=chr($b[$i]);
}
}
return $a;
}

echo(c($b,$p));
</code></pre>



输出



<pre><code>bounty.php?hitlist_id=9366558&formNonce=e0d2fe5b7d80c47a1654f29e797d5aed11e6aa14&h=2487f379e63ee6858f64e291c2f6fe3d09600
</code></pre>



JS 和 PHP 中的两个示例输出相同。

工作示例 php: example

工作示例js:example