modify build system to use php instead of php4

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10967 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/php/conversion_namespace_runme.php

@@ -0,0 +1,14 @@
+<?php
+// Sample test file
+
+require "tests.php";
+require "conversion_namespace.php";
+
+check::classes(array("Foo","Bar"));
+$bar=new Bar;
+check::classname("bar",$bar);
+$foo=$bar->toFoo();
+check::classname("foo",$foo);
+
+check::done();
+?>