title: wordpress Fatal error: Out of memory
body: <p>I have set php memory limit from whm to 256M from WHM > PHP Configuration Editor.
  Even so, my wordpress website and admin is showing me an error like below.</p>
  
  <pre><code>Fatal error: Out of memory (allocated 36175872) (tried to allocate 30720 bytes) in /home/XXXX/public_html/wp-includes/class-simplepie.php on line 14272
  Fatal error: Out of memory (allocated 35127296) (tried to allocate 1966080 bytes) in /home/XXXX/public_html/wp-includes/class-simplepie.php on line 5427
  </code></pre>
  
  <p>I also tried to add following line to the top of wp-config.php, but no luck and same error.</p>
  
  <pre><code>define('WP_MEMORY_LIMIT', '128M');
  </code></pre>
  
  <p>can anyone suggest me or tell me what may be the solution?</p>