title: convert url to array in php with exclude
body: <p>i have some url </p>
  
  <pre><code>db.test.net/num/index.php/api/get_abj?n_abj=A||B||C||D||E||F||G||H||I||J||K||L
  </code></pre>
  
  <p>i want to parse <code>n_abj</code> to array in php like </p>
  
  <pre><code>$n_abj = [A,B,C,D,E,F,G,H,I,J,K,L]
  </code></pre>
  
  <p>I was told to use Exclude, but I don't understand the method, can I give me a sample code or reference for me to learn?</p>