Merge branch 'PHP-5.4' into PHP-5.5

Conflicts:
	configure.in
	ext/mysqlnd/mysqlnd.c
	main/php_version.h

ext/mysqlnd/mysqlnd.c

@@ -2247,7 +2247,6 @@ MYSQLND_METHOD(mysqlnd_conn_data, change_user)(MYSQLND_CONN_DATA * const conn,
 	}
 	if (!db) {
 		db = "";
-
 	}
 
 	/* XXX: passwords that have \0 inside work during auth, but in this case won't work with change user */

ext/pdo/pdo_dbh.c

@@ -460,7 +460,7 @@ static void pdo_stmt_construct(pdo_stmt_t *stmt, zval *object, zend_class_entry
 	if (dbstmt_ce->constructor) {
 		zend_fcall_info fci;
 		zend_fcall_info_cache fcc;
-		zval *retval;
+		zval *retval = NULL;
 
 		fci.size = sizeof(zend_fcall_info);
 		fci.function_table = &dbstmt_ce->function_table;
@@ -495,7 +495,7 @@ static void pdo_stmt_construct(pdo_stmt_t *stmt, zval *object, zend_class_entry
 			zval_dtor(object);
 			ZVAL_NULL(object);
 			object = NULL; /* marks failure */
-		} else {
+		} else if (retval) {
 			zval_ptr_dtor(&retval);
 		}
 			

ext/pdo_sqlite/tests/bug66033.phpt

@@ -0,0 +1,33 @@
+--TEST--
+Bug #66033 (Segmentation Fault when constructor of PDO statement throws an exception)
+--SKIPIF--
+<?php
+if (!extension_loaded('pdo_sqlite')) print 'skip not loaded';
+?>
+--FILE--
+<?php
+class DBStatement extends PDOStatement {
+	public $dbh;
+	protected function __construct($dbh) {
+		$this->dbh = $dbh;
+		throw new Exception("Blah");
+	}
+}
+
+$pdo = new PDO('sqlite::memory:', null, null);
+$pdo->setAttribute(PDO::ATTR_STATEMENT_CLASS, array('DBStatement',
+	array($pdo)));
+$pdo->exec("CREATE TABLE IF NOT EXISTS messages (
+	id INTEGER PRIMARY KEY,
+	title TEXT,
+	message TEXT,
+	time INTEGER)");
+
+try {
+	$pdoStatement = $pdo->query("select * from messages");
+} catch (Exception $e) {
+	var_dump($e->getMessage());
+}
+?>
+--EXPECTF--
+string(4) "Blah"