Binary to Text in php

How to implement the Code!
1: Open the Html basic code
2: Connect the website with xampp
3: Paste the code in Html code

  < ?
     function bin2text($bin_str)
     {
       $text_str = '';
       $chars = explode("\n", chunk_split(str_replace("\n", '', $bin_str), 8));
       $_I = count($chars);
       for($i = 0; $i < $_I; $text_str .= chr(bindec($chars[$i])), $i );
       return $text_str;
     }
     function text2bin($txt_str)
     {
       $len = strlen($txt_str);
       $bin = '';
       for($i = 0; $i < $len; $i )
       {
         $bin .= strlen(decbin(ord($txt_str[$i]))) < 8 ? str_pad(decbin(ord($txt_str[$i])), 8, 0, STR_PAD_LEFT) : decbin(ord($txt_str[$i]));
       }
       return $bin;
     }
     print text2bin('How are you gentlements?');
  ? >