Bug #65182 [NEW]: Segmentation Fault by acces to class var in persitant mode

From: radtke at hd-system dot de Operating system: Ubuntu 12.04 PHP version: 5.5.0 Package: PDO related Bug Type: Bug Bug description:Segmentation Fault by acces to class var in persitant mode Description: ------------ create a class which extends the pdo class f.e. "extPDO" use the persistant mode declare a class var f.e. "$sf" create more then 1 object of the extPDO class and take access to the class var "$sf" causes a segmentation fault no seg fault if: 1. you are NOT in persistant mode 2. you just create 1 instance of the class 2. you don't declare the class var; just set it in the constructor and take access to it Noticed by accessing two different databases in a loop. Test script: --------------- class extPDO extends PDO { public $sf; public function __construct($db_name, $host, $username, $passwd) { $dsn = 'mysql:dbname='.$db_name.';host='.$host; $this->sf = '42'; $options = array(PDO::ATTR_PERSISTENT => true); parent::__construct($dsn, $username, $passwd, $options); $this->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $this->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC); } } function testExtPDO() { for($i = 1; $i <= 2; $i++){ try{ $pdo_obj = new extPDO('csp2_mycms', 'csp2-db.pille.hds', 'root', ''); $sql = 'SELECT user_id FROM user'; $pdo_st = $pdo_obj->query($sql); if($row = $pdo_st->fetch(PDO::FETCH_ASSOC)) echo $i.'.sf:'. $pdo_obj->sf."<br>"; } catch(Exception $e){ echo 'Exception: '.$e->getMessage().'<br>'; } } } testExtPDO(); Expected result: ---------------- no segmentation fault Actual result: -------------- segmentation fault -- Edit bug report at https://bugs.php.net/bug.php?id=65182&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=65182&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=65182&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=65182&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=65182&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=65182&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=65182&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=65182&r=needscript Try newer version: https://bugs.php.net/fix.php?id=65182&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=65182&r=support Expected behavior: https://bugs.php.net/fix.php?id=65182&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=65182&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=65182&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=65182&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=65182&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=65182&r=dst IIS Stability: https://bugs.php.net/fix.php?id=65182&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=65182&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=65182&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=65182&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=65182&r=mysqlcfg