I looked at my older code that worked and adjusted it to look like this, but it still doesn't work.
<?php
if(isset($_POST["deleteTreat_x"])){
$WA_DeleteFileResult1 = false;
$WA_DeleteFileResult1 = WA_FileAssist_DeleteFile("../img/".$_SESSION['UserID'] ."/".$_SESSION['pawsid'] ."/treat/", "".$row_treatRS['TreatImage'] ."");
}
?>