Here is a patch that implements the missing functionality in ReflectionProperty::setValue().

Index: php_reflection.c
===================================================================
RCS file: /repository/php-src/ext/reflection/php_reflection.c,v
retrieving revision 1.164.2.33.2.45.2.42
diff -u -B -u -r1.164.2.33.2.45.2.42 php_reflection.c
--- php_reflection.c    27 Nov 2008 19:01:22 -0000      1.164.2.33.2.45.2.42
+++ php_reflection.c    29 Nov 2008 14:44:52 -0000
@@ -4365,7 +4365,7 @@
        METHOD_NOTSTATIC(reflection_property_ptr);
        GET_REFLECTION_OBJECT_PTR(ref);

-       if (!(ref->prop.flags & ZEND_ACC_PUBLIC)) {
+       if (!(ref->prop.flags & ZEND_ACC_PUBLIC) && ref->ignore_visibility == 0) {
                _default_get_entry(getThis(), "name", sizeof("name"), &name TSRMLS_CC);
                zend_throw_exception_ex(reflection_exception_ptr, 0 TSRMLS_CC,
                        "Cannot access non-public member %s::%s", intern->ce->name, Z_STRVAL(name));
@@ -4409,10 +4409,13 @@
                        zend_hash_quick_update(prop_table, ref->prop.name, ref->prop.name_length+1, ref->prop.h, &value, sizeof(zval *), (void **) &foo);
                }
        } else {
+               char *class_name, *prop_name;
+
                if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "oz", &object, &value) == FAILURE) {
                        return;
                }
-               zend_update_property(Z_OBJCE_P(object), object, ref->prop.name, ref->prop.name_length, value TSRMLS_CC);
+               zend_unmangle_property_name(ref->prop.name, ref->prop.name_length, &class_name, &prop_name);
+               zend_update_property(Z_OBJCE_P(object), object, prop_name, strlen(prop_name), value TSRMLS_CC);
        }
 }
 /* }}} */
Index: tests/reflectionProperty_setAccessible.phpt
===================================================================
RCS file: /repository/php-src/ext/reflection/tests/reflectionProperty_setAccessible.phpt,v
retrieving revision 1.1.2.3
diff -u -B -u -r1.1.2.3 reflectionProperty_setAccessible.phpt
--- tests/reflectionProperty_setAccessible.phpt 24 May 2008 13:34:22 -0000      1.1.2.3
+++ tests/reflectionProperty_setAccessible.phpt 29 Nov 2008 14:44:52 -0000
@@ -2,43 +2,82 @@
 Test ReflectionProperty::setAccessible().
 --FILE--
 <?php
-
-class TestClass {
-    public $pub;
-    public $pub2 = 5;
-    static public $stat = "static property";
-    protected $prot = 4;
-    private $priv = "keepOut";
+class A {
+    protected $protected = 'a';
+    protected static $protectedStatic = 'b';
+    private $private = 'c';
+    private static $privateStatic = 'd';
 }

-class AnotherClass {
+$a               = new A;
+$protected       = new ReflectionProperty($a, 'protected');
+$protectedStatic = new ReflectionProperty('A', 'protectedStatic');
+$private         = new ReflectionProperty($a, 'private');
+$privateStatic   = new ReflectionProperty('A', 'privateStatic');
+
+try {
+    var_dump($protected->getValue($a));
 }

-$instance = new TestClass();
+catch (ReflectionException $e) {
+    var_dump($e->getMessage());
+}

-echo "\nProtected property:\n";
-$propInfo = new ReflectionProperty('TestClass', 'prot');
 try {
-    var_dump($propInfo->getValue($instance));
+    var_dump($protectedStatic->getValue());
 }
-catch(Exception $exc) {
-    echo $exc->getMessage(), "\n";
+
+catch (ReflectionException $e) {
+    var_dump($e->getMessage());
+}
+
+try {
+    var_dump($private->getValue($a));
 }

-$propInfo->setAccessible(true);
-var_dump($propInfo->getValue($instance));
+catch (ReflectionException $e) {
+    var_dump($e->getMessage());
+}

-$propInfo->setAccessible(false);
 try {
-    var_dump($propInfo->getValue($instance));
+    var_dump($privateStatic->getValue());
 }
-catch(Exception $exc) {
-    echo $exc->getMessage(), "\n";
+
+catch (ReflectionException $e) {
+    var_dump($e->getMessage());
 }
+
+$protected->setAccessible(TRUE);
+$protectedStatic->setAccessible(TRUE);
+$private->setAccessible(TRUE);
+$privateStatic->setAccessible(TRUE);
+
+var_dump($protected->getValue($a));
+var_dump($protectedStatic->getValue());
+var_dump($private->getValue($a));
+var_dump($privateStatic->getValue());
+
+$protected->setValue($a, 'e');
+$protectedStatic->setValue('f');
+$private->setValue($a, 'g');
+$privateStatic->setValue('h');
+
+var_dump($protected->getValue($a));
+var_dump($protectedStatic->getValue());
+var_dump($private->getValue($a));
+var_dump($privateStatic->getValue());
 ?>
 --EXPECTF--
+string(44) "Cannot access non-public member A::protected"
+string(50) "Cannot access non-public member A::protectedStatic"
+string(42) "Cannot access non-public member A::private"
+string(48) "Cannot access non-public member A::privateStatic"
+string(1) "a"
+string(1) "b"
+string(1) "c"
+string(1) "d"
+string(1) "e"
+string(1) "f"
+string(1) "g"
+string(1) "h"

-Protected property:
-Cannot access non-public member TestClass::prot
-int(4)
-Cannot access non-public member TestClass::prot

This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
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