1--TEST-- 2Bug #42499 (Multi-statement execution via PDO::exec() makes connection unusable) 3--SKIPIF-- 4<?php 5if (!extension_loaded('pdo') || !extension_loaded('pdo_mysql')) die('skip not loaded'); 6require_once(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'skipif.inc'); 7require_once(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'mysql_pdo_test.inc'); 8 9MySQLPDOTest::skip(); 10 11$db = MySQLPDOTest::factory(); 12$stmt = $db->query('SELECT VERSION() as _version'); 13$row = $stmt->fetch(PDO::FETCH_ASSOC); 14$matches = array(); 15if (!preg_match('/^(\d+)\.(\d+)\.(\d+)/ismU', $row['_version'], $matches)) 16 die(sprintf("skip Cannot determine MySQL Server version\n")); 17 18$version = $matches[0] * 10000 + $matches[1] * 100 + $matches[2]; 19if ($version < 41000) 20 die(sprintf("skip Need MySQL Server 4.1.0+, found %d.%02d.%02d (%d)\n", 21 $matches[0], $matches[1], $matches[2], $version)); 22--FILE-- 23<?php 24require_once(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'mysql_pdo_test.inc'); 25$db = MySQLPDOTest::factory(); 26 27function bug_42499($db) { 28 29 $db->exec('DROP TABLE IF EXISTS test'); 30 $db->exec("CREATE TABLE test(id CHAR(1)); INSERT INTO test(id) VALUES ('a')"); 31 32 $stmt = $db->query('SELECT id AS _id FROM test'); 33 var_dump($stmt->fetchAll(PDO::FETCH_ASSOC)); 34 35 // You must not use exec() to run statements that create a result set! 36 $db->exec('SELECT id FROM test'); 37 // This will bail at you because you have not fetched the SELECT results: this is not a bug! 38 $db->exec("INSERT INTO test(id) VALUES ('b')"); 39 40} 41 42print "Emulated Prepared Statements...\n"; 43$db = MySQLPDOTest::factory(); 44$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, 1); 45$db->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, 1); 46bug_42499($db); 47 48print "Native Prepared Statements...\n"; 49$db = MySQLPDOTest::factory(); 50$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, 0); 51$db->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, 1); 52bug_42499($db); 53 54$db = MySQLPDOTest::factory(); 55$db->exec('DROP TABLE IF EXISTS test'); 56 57print "done!"; 58?> 59--EXPECTF-- 60Emulated Prepared Statements... 61array(1) { 62 [0]=> 63 array(1) { 64 [%u|b%"_id"]=> 65 %unicode|string%(1) "a" 66 } 67} 68 69Warning: PDO::exec(): SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. in %s on line %d 70Native Prepared Statements... 71array(1) { 72 [0]=> 73 array(1) { 74 [%u|b%"_id"]=> 75 %unicode|string%(1) "a" 76 } 77} 78 79Warning: PDO::exec(): SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. in %s on line %d 80done! 81
