title: join() PHP function removes duplicated values?
body: <p>how are you doing?
  When I use the join() function with duplicated values in an array, the join function returns the array but removing duplicates and I dont want that!</p>
  
  <p>Example:</p>
  
  <pre><code>$array= array(1, 2, 2, 2);
  $res = join(',', $array);
  </code></pre>
  
  <p>I get this:</p>
  
  <pre><code>1,2
  </code></pre>
  
  <p>but I want the result to be:</p>
  
  <pre><code>1,2,2,2
  </code></pre>
  
  <p>Hope someone can help me! Thank you </p>