if post method form php self code example

Example 1: php post form to self

// Here is how to post form data to self or to the same page & 
// avoid the PHP_SELF exploits at the same time.
<form name="my_form" method="post"
  action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>"> 
</form>

Example 2: php self

<form name="form1" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" >