PHP Decode

<?php 
  
$enc_arr = array( 
        "3Qve>.IXeOLC>[D&6f8af44abea0QKwu/Xr7GuFo50p4HuAZHBfnqhv7/+ccFfisfH4bYOSMRi0eGPgZuRd6SPsdGP//c+dVM7gnYSWvlINZmlWQGyDpzCowpzczRely/Q351039f4a7b5+'Qn/?>-", 
        "0UlYyJHG87EJqEz66f8af44abea0QKxO/n6DAwXuGEoc5X9/H3HkMXv1Ih75Fx1NdSPRNDPUmHTy351039f4a7b5", 
        "3Qve>.IXeOLC>[D&6f8af44abea0QKxo+HM4thMoMKWcSng9UZNbdc4WFhO2jaU4eMhPaDTePEuB48JstWIb4aEirLpXpdgb7g8Bx/IGI/JLbVRcFack+r90YxXpmBA1wQKaU9jeRhvp7imF351039f4a7b5+'Qn/?>- 
e=ZU mx", 
        "0UlYyJHG87EJqEz66f8af44abea0QKzo43k49AMoNoVOfAMh+6h3euEZJvkTlblqP34rlZqPhxDgKLYMz7NpqfQ9IR9FOXy0OfVbUgo/PF3MxrMw/JOdJebwjE2y6VAxUFnyA4H4dHQNgV49YatbqT0it9IXYf5kzoE4+kfGnZ/dTAsyCesTC0i5V+gJQw6bYm/nU3U/lrYGyl+dgvIOURfl0fvGm0hmr0RZKQ==351039f4a7b5", 
        "3Qve>.IXeOLC>[D&6f8af44abea0QKxI+Ak49hMoNaXoypsATiJfd3clJ+KmL5OyfLiGNSBKHFWppDXbjhH/M9orZ0qPjQ14MLA5CjeLxAG9/fBJgQyWrbiZPrCFcj3xDb95CvC29r/AN2ziEh0351039f4a7b5+'Qn/?>- 
e=ZU mx", 
        "0UlYyJHG87EJqEz66f8af44abea0QKy2/Pr9e+Z3eUh4//sZexUyZR8mN/g=351039f4a7b5", 
        "3Qve>.IXeOLC>[D&6f8af44abea0QKwu/Xr7GuFo56r7/X/jfHEdLv77HX4eaufRRXofHPkXukp5H/oZGfH8LuQCMrwmbybyl9RYnhQdJsKpqxrepRMoTSemlRLaXZdBZhoq75ohMhAxMvrQKEw351039f4a7b5+'Qn/?>- 
e=ZU mx", 
        "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351039f4a7b5" 
); 
  
function xor_func($msg, $xor_key) { 
    $key_len = strlen($xor_key); 
    $msg_len = strlen($msg); 
    $o = ""; 
    for ($i = 0;$i < $msg_len;) { 
        for ($j = 0;($j < $key_len && $i < $msg_len);$j++, $i++) { 
            $o.= $msg{$i} ^ $xor_key{$j}; 
        } 
    } 
    return $o; 
} 
  
  
  
function decode($enc_arr) { 
    
    $xor_key = "80e32263"; 
    $msg_header = "6f8af44abea0"; 
    $msg_footer = "351039f4a7b5"; 
    $reply_header = "0UlYyJHG87EJqEz6"; 
  
    foreach ($enc_arr as $enc) 
    { 
      if (preg_match("/$msg_header(.+)$msg_footer/", $enc , $msg) == 1) 
      { 
        # decode and execute commands passed to webshell 
        print(gzuncompress(xor_func(base64_decode($msg[1]), $xor_key))."
"); 
        # return encoded output from command execution 
      } 
    } 
} 
  
decode($enc_arr);