Fix typedefs

Author: Girgias

ext/mysqli/mysqli.c

@@ -71,8 +71,8 @@ zend_class_entry *mysqli_warning_class_entry;
 zend_class_entry *mysqli_exception_class_entry;
 
 
-typedef int (*mysqli_read_t)(mysqli_object *obj, zval *rv, bool quiet);
-typedef int (*mysqli_write_t)(mysqli_object *obj, zval *newval);
+typedef zend_result (*mysqli_read_t)(mysqli_object *obj, zval *rv, bool quiet);
+typedef zend_result (*mysqli_write_t)(mysqli_object *obj, zval *newval);
 
 typedef struct _mysqli_prop_handler {
 	zend_string *name;