Fix bug GH-1 (mysqli_sql_exception->sqlstate is inaccessible)

Author: kamil-tekiela

ext/mysqli/mysqli.c

@@ -568,7 +568,7 @@ PHP_MINIT_FUNCTION(mysqli)
 	mysqli_exception_class_entry = zend_register_internal_class_ex(&cex, spl_ce_RuntimeException);
 	mysqli_exception_class_entry->ce_flags |= ZEND_ACC_FINAL;
 	zend_declare_property_long(mysqli_exception_class_entry, "code", sizeof("code")-1, 0, ZEND_ACC_PROTECTED);
-	zend_declare_property_string(mysqli_exception_class_entry, "sqlstate", sizeof("sqlstate")-1, "00000", ZEND_ACC_PROTECTED);
+	zend_declare_property_string(mysqli_exception_class_entry, "sqlstate", sizeof("sqlstate")-1, "00000", ZEND_ACC_PUBLIC);
 
 	REGISTER_MYSQLI_CLASS_ENTRY("mysqli_driver", mysqli_driver_class_entry, class_mysqli_driver_methods);
 	ce = mysqli_driver_class_entry;

ext/mysqli/tests/bugGH1.phpt

@@ -0,0 +1,25 @@
+--TEST--
+Bug #GH-1 mysqli_sql_exception->sqlstate is inaccessible
+--EXTENSIONS--
+mysqli
+--SKIPIF--
+<?php
+require_once "connect.inc";
+require_once 'skipifconnectfailure.inc';
+?>
+--FILE--
+<?php
+require 'connect.inc';
+$link = my_mysqli_connect($host, $user, $passwd, $db, $port, $socket);
+
+mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
+
+try {
+    $link->query("stuff");
+} catch (mysqli_sql_exception $exception) {
+    var_dump($exception->sqlstate);
+}
+
+?>
+--EXPECT--
+string(5) "42000"