是否有任何方法可以在属性“action”中调用ather文件？

I'm writing a plugin for wordpress and my count.php file doesn't works without calling wp-load.php

 <form method="post" onload="MyFunction()" id="WidgetForm" onsubmit="return false;" action=<?php echo plugins_url('/count.php',__FILE__); ?>>

Are there any ways to call this count.php that works withaout wp-load.php??