title: Subtracting one array from another
body: <p>I want to subtract one array from another .</p>
  
  <p>for example I have 2 arrays. </p>
  
  <pre><code>Array
  (
      [0] =&gt; 251
      [1] =&gt; 251
      [2] =&gt; 130
  )
  
  
   Array
      (
          [0] =&gt; 13
          [1] =&gt; 13
          [2] =&gt; 50
      )
  </code></pre>
  
  <p>The resulting array has to be </p>
  
  <pre><code>Array
      (
          [0] =&gt; 238
          [1] =&gt; 238
          [2] =&gt; 80
      )
  </code></pre>
  
  <p>Any sort of help on this is appreciated . </p>