Merge branch 'PHP-7.0'

* PHP-7.0:
  NEWS
  NEWS
  Fix Bug #71089 No check to duplicate zend_extension

Author: remicollet

Zend/zend_extensions.c

@@ -109,6 +109,14 @@ int zend_load_extension(const char *path)
 /* See http://support.microsoft.com/kb/190351 */
 #ifdef ZEND_WIN32
 		fflush(stderr);
+#endif
+		DL_UNLOAD(handle);
+		return FAILURE;
+	} else if (zend_get_extension(new_extension->name)) {
+		fprintf(stderr, "Cannot load %s - extension already loaded\n", new_extension->name);
+/* See http://support.microsoft.com/kb/190351 */
+#ifdef PHP_WIN32
+		fflush(stderr);
 #endif
 		DL_UNLOAD(handle);
 		return FAILURE;