(PECL radius >= 1.1.0)
radius_acct_open — Creates a Radius handle for accounting
   Returns a handle on success, FALSE on error. This function only fails if
   insufficient memory is available.
  
Example #1 radius_acct_open() example
<?php
$res = radius_acct_open ()
    or die ("Could not create handle");
print("Handle successfully created");
?>