Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
  Fixed bug #78921

Author: nikic

Zend/tests/bug78921.phpt

@@ -0,0 +1,36 @@
+--TEST--
+Bug #78921: When Reflection triggers class load, property visibility is incorrect
+--FILE--
+<?php
+
+spl_autoload_register(function($className) {
+    if ($className == 'PrivateStatic') {
+        class PrivateStatic
+        {
+            const SOME_CONST = 13;
+            private static $privateStaticVarArray = ['a', 'b', 'c'];
+            private static $otherStatic;
+            public static function init()
+            {
+                self::$otherStatic = self::$privateStaticVarArray;
+            }
+        }
+        PrivateStatic::init();
+    }
+});
+
+class OtherClass
+{
+    const MY_CONST = PrivateStatic::SOME_CONST;
+    public static $prop = 'my property';
+}
+
+$reflectionClass = new ReflectionClass('OtherClass');
+$reflectionProperty = $reflectionClass->getProperty('prop');
+$reflectionProperty->setAccessible(true);
+$value = $reflectionProperty->getValue();
+echo "Value is $value\n";
+
+?>
+--EXPECT--
+Value is my property

Zend/zend_execute_API.c

@@ -890,6 +890,7 @@ ZEND_API zend_class_entry *zend_lookup_class_ex(zend_string *name, zend_string *
 	zend_string *lc_name;
 	zend_fcall_info fcall_info;
 	zend_fcall_info_cache fcall_cache;
+	zend_class_entry *orig_fake_scope;
 
 	if (key) {
 		lc_name = key;
@@ -986,11 +987,14 @@ ZEND_API zend_class_entry *zend_lookup_class_ex(zend_string *name, zend_string *
 	fcall_cache.called_scope = NULL;
 	fcall_cache.object = NULL;
 
+	orig_fake_scope = EG(fake_scope);
+	EG(fake_scope) = NULL;
 	zend_exception_save();
 	if ((zend_call_function(&fcall_info, &fcall_cache) == SUCCESS) && !EG(exception)) {
 		ce = zend_hash_find_ptr(EG(class_table), lc_name);
 	}
 	zend_exception_restore();
+	EG(fake_scope) = orig_fake_scope;
 
 	zval_ptr_dtor(&args[0]);
 	zval_ptr_dtor_str(&fcall_info.function_name);