title: Find if value exists in a JSONArray in php
body: <p>I have a JSONArray as shown below</p>
  
  <pre><code>{
      "output": [
          "a",
          "b",
          "c",
          "d",
          "e"
      ]
  }
  </code></pre>
  
  <p>I need to find if "e" exists in the above array in php. Can someone help me out with this ?</p>