title: Find same value PHP array
body: <p>I have two arrays, I need to find out the value for each of the array which is the same.</p>
  
  <p>For example, </p>
  
  <pre><code>   $arr1=array("a", "b", "c");
     $arr2=array("c", "d", "e");
  </code></pre>
  
  <p>Then c should be display. How could I do this?</p>