Avoid uses of undeclared variables in PHP testsuite

Examples/test-suite/php/argout_runme.php

@@ -30,7 +30,7 @@ unset($handle);
 #$handledata=handle($handle);
 #check::equal($handledata,"Here it is","\$handledata != \"Here it is\"");
 
-unset($handle);
+$handle=NULL;
 voidhandle($handle);
 check::isnull($handle,'$handle not null');
 

Examples/test-suite/php/template_arg_typename_runme.php

@@ -10,7 +10,7 @@ check::classes(array('UnaryFunction_bool_bool','BoolUnaryFunction_bool'));
 $ufbb=new unaryfunction_bool_bool();
 check::is_a($ufbb,"unaryfunction_bool_bool");
 
-unset($whatisthis);
+$whatisthis=NULL;
 $bufb=new boolunaryfunction_bool($whatisthis);
 check::is_a($bufb,"boolunaryfunction_bool");
 

Examples/test-suite/php/tests.php

@@ -82,6 +82,7 @@ class check {
   static function classmethods($classname,$methods) {
     if (is_object($classname)) $classname=get_class($classname);
     $classmethods=array_flip(get_class_methods($classname));
+    $message=NULL;
     $missing=array();
     $extra=array();
     foreach($methods as $method) {