simple-dynamic-php-js-obfuscation-script.php

<?php
/*  
    A Simple Dynamic PHP & JS obfuscation script 
    - Made by Yani
    https://github.com/Yanikore - https://gist.github.com/Yanikore
*/
  
function randomString($length = 8) { //Just a randomstring function
    $randomString = '';
    $characters = implode("", array_merge(range('a', 'z'), range('A', 'Z')));

    for ($i = 0; $i < $length; $i++)
        $randomString .= $characters[mt_rand(0, strlen($characters) - 1)];

    return $randomString;
}

function enc($output) { //Obfuscation code
    $randomFunc = randomString(mt_rand(6,12));
    $randomOut = randomString(mt_rand(6,12));
    $randomNum = randomString(mt_rand(6,12));
    $randomVal = mt_rand(1337, 99999999);

    $return = '<script>' . PHP_EOL;
    $return .= 'var ' . $randomOut . ' = "";' . PHP_EOL;
    $return .= 'var ' . $randomNum . ' = [';

    foreach(str_split($output) as $x) {
        $return .= (ord($x) + $randomVal) . ', ';
    }

    $return = rtrim($return, ', ');
    $return .= '];' . PHP_EOL;

    $return .= $randomNum . '.forEach(function ' . $randomFunc . '(value) { ' . $randomOut . ' += String.fromCharCode(parseInt(value) - ' . $randomVal . '); } );' . PHP_EOL;
    $return .= 'document.write(' . $randomOut . ');';
    $return .= '</script>';

    return $return;
}

ob_start("enc"); // Open our buffer and use the enc() function on it

echo "YANI";

ob_end_flush(); // Close our buffer which will display the output