title: How does the equivalence operator work with arrays in PHP?
body: <p>Code:</p>
  
  <pre><code>$arr = array( 10, 20, 30 );
  $arr1 = array(
         1=&gt;30,
         2=&gt;20,
         0=&gt;10
  );
  var_dump( $arr == $arr1 );
  
  $a = array( 1, 2, 3);
  $b = array(
         1=&gt;2,
         2=&gt;3,
         0=&gt;1
   );
  var_dump($a == $b);
  </code></pre>
  
  <p>This outputs:</p>
  
  <pre><code>bool(false)
  bool(true)
  </code></pre>