Switch php code tag, fix php code

all files use <?php for code tag open
fix various bugs & speed problems. eg switch from while (each ...) to
foreach, ...

www/admin/class_test.php

@@ -1,4 +1,4 @@
-<?
+<?php
 $DEBUG_ALL_OVERRIDE = 0; // set to 1 to debug on live/remote server locations
 $DEBUG_ALL = 1;
 $PRINT_ALL = 1;