將此簡單的Javascript轉換為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;
}

我正在嘗試將上述JavaScript代碼轉換為PHP，但是由於在某些方面將其壓縮以使其更加混亂，所以我遇到了很大的困難。 非常感謝您的幫助！

更新：這是我嘗試過的：

<?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。

如何將這個簡單的Javascript轉換為PHP？

Answer 1

未經測試。 只是字面翻譯

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

Answer 2

在PHP中

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

注意：您應該為變量賦予更多描述性名稱

Answer 3

我用於這種黑客攻擊的另一種方法是通過PHP動態編寫JavaScript腳本，但通過帶有內容類型標識符的http標頭將其回顯。 參見以下示例：

index.html的：

<script type="text/javascript" src="js.php"></script>

js.php

<?php
$js = <<<JS
///BEGIN JS SCRIPT //
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;
}

/// END JS SCRIPT //
JS;
header("Content-type: text/javascript");
echo $js;
exit();
?>

我發現有關此方法的一個挫折是，如果您想從html的更高版本的腳本中重新訪問這些變量，則無法緩存該腳本。 但是，對於“幕后”工作的某些實施，這是一個很大的好處。

Answer 4

最好的方法是使用chr 。

chr —返回特定字符

 $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)); 

OUTPUT

 bounty.php?hitlist_id=9366558&formNonce=e0d2fe5b7d80c47a1654f29e797d5aed11e6aa14&h=2487f379e63ee6858f64e291c2f6fe3d09600 

JS和PHP中的兩個示例都輸出相同。

工作示例php： 示例

工作示例js： 示例