title: How to implode array data from index 2
body: <p>I have array data like this :</p>
  
  <pre><code>$word[0]="search";
  $word[1]="journal";
  $word[2]="information";
  $word[3]="system";
  </code></pre>
  
  <p>If I make PHP code like this :</p>
  
  <p>$output=implode(" ",$word);</p>
  
  <p>The output (implode result) is a combination of word ("search journal information system"). If I want to implode from index 2 so the result="information system". How the solution this problem?</p>