title: Delete from json using php
body: <p>my Current json code :</p>
  
  <pre><code>{"Results":[{"username":"test","password":"test"},{"username":"test","password":"test"},{"username":"google","password":"test"},{"username":"yahoo","password":"test"},{"username":"hotmail","password":"test"}]}
  </code></pre>
  
  <p>i want to remove this :</p>
  
  <pre><code>{"username":"google","password":"test"}
  </code></pre>
  
  <p>from the code using php.
  i tried deleting by decoding json to array but cant get it done.
  any solution ?</p>