title: Typo generator PHP
body: <p>I stumbled upon a "typo generator" script. I am attempting to modify it so that a user can enter a word and generate a list of typos.</p>
  
  <p><strong>This is the script</strong></p>
  
  <pre><code>$str = $_POST["str"];
  
  function getTypos($str) {
      $typosArr = array();
      $strArr = str_split($str);
  
      //Proximity of keys on keyboard
      $arr_prox = array();
      $arr_prox['a'] = array('q', 'w', 'z', 'x');
      $arr_prox['b'] = array('v', 'f', 'g', 'h', 'n');
      $arr_prox['c'] = array('x', 's', 'd', 'f', 'v');
      $arr_prox['d'] = array('x', 's', 'w', 'e', 'r', 'f', 'v', 'c');
      $arr_prox['e'] = array('w', 's', 'd', 'f', 'r');
      $arr_prox['f'] = array('c', 'd', 'e', 'r', 't', 'g', 'b', 'v');
      $arr_prox['g'] = array('r', 'f', 'v', 't', 'b', 'y', 'h', 'n');
      $arr_prox['h'] = array('b', 'g', 't', 'y', 'u', 'j', 'm', 'n');
      $arr_prox['i'] = array('u', 'j', 'k', 'l', 'o');
      $arr_prox['j'] = array('n', 'h', 'y', 'u', 'i', 'k', 'm');
      $arr_prox['k'] = array('u', 'j', 'm', 'l', 'o');
      $arr_prox['l'] = array('p', 'o', 'i', 'k', 'm');
      $arr_prox['m'] = array('n', 'h', 'j', 'k', 'l');
      $arr_prox['n'] = array('b', 'g', 'h', 'j', 'm');
      $arr_prox['o'] = array('i', 'k', 'l', 'p');
      $arr_prox['p'] = array('o', 'l');
      $arr_prox['r'] = array('e', 'd', 'f', 'g', 't');
      $arr_prox['s'] = array('q', 'w', 'e', 'z', 'x', 'c');
      $arr_prox['t'] = array('r', 'f', 'g', 'h', 'y');
      $arr_prox['u'] = array('y', 'h', 'j', 'k', 'i');
      $arr_prox['v'] = array('', 'c', 'd', 'f', 'g', 'b');    
      $arr_prox['w'] = array('q', 'a', 's', 'd', 'e');
      $arr_prox['x'] = array('z', 'a', 's', 'd', 'c');
      $arr_prox['y'] = array('t', 'g', 'h', 'j', 'u');
      $arr_prox['z'] = array('x', 's', 'a');
      $arr_prox['1'] = array('q', 'w');
      $arr_prox['2'] = array('q', 'w', 'e');
      $arr_prox['3'] = array('w', 'e', 'r');
      $arr_prox['4'] = array('e', 'r', 't');
      $arr_prox['5'] = array('r', 't', 'y');
      $arr_prox['6'] = array('t', 'y', 'u');
      $arr_prox['7'] = array('y', 'u', 'i');
      $arr_prox['8'] = array('u', 'i', 'o');
      $arr_prox['9'] = array('i', 'o', 'p');
      $arr_prox['0'] = array('o', 'p');
  
      foreach($strArr as $key=&gt;$value) {
          $temp = $strArr;
          foreach ($arr_prox[$value] as $proximity){
              $temp[$key] = $proximity;
              $typosArr[] = join("", $temp);
          }
      }   
  
      return $typosArr;
  }
  </code></pre>
  
  <p>I created a HTML page with a text box and submit button that posts the data to the above php file. How do I display the results? I have tried <code>echo $typosArr;</code> but this does not seem to work.</p>