Bug #53534 [NEW]: Incorrect call to destructor when object stored in a session

From: Operating system: Windows 7 PHP version: 5.3.4 Package: Class/Object related Bug Type: Bug Bug description:Incorrect call to destructor when object stored in a session Description: ------------ When an object is stored in the $_SESSION variable, the destructor is still called at the end of the script. When the object is retrieved from the $_SESSION on the next invocation, the constructor is not called, but the destructor is again called. To duplicate, place the attached code on a web server and load it. Then press the reload button multiple times to see the results. Test script: --------------- <?php class test { private $construct_count = 0; private $destruct_count = 0; public function __construct() { $this->construct_count++; echo "Constructor called.<br>\n"; } public function __destruct() { $this->destruct_count++; echo "Destructor called.<br>\n"; } } session_start(); ?> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> <title>Test Script</title> </head> <body> <?php if (!isset($_SESSION['test'])){ echo "Session not found<br>\n"; $_SESSION['test'] = new Test(); } else echo "Session found<br>\n"; echo "<pre>\n"; print_r($_SESSION); echo "</pre>\n"; ?> </body> </html> Expected result: ---------------- Session not found Constructor called. Array ( [test] => test Object ( [construct_count:test:private] => 1 [destruct_count:test:private] => 0 ) ) After second and subsequent invocations: Session found Array ( [test] => test Object ( [construct_count:test:private] => 1 [destruct_count:test:private] => 0 ) ) Actual result: -------------- After first invocation: Session not found Constructor called. Array ( [test] => test Object ( [construct_count:test:private] => 1 [destruct_count:test:private] => 0 ) ) Destructor called. After second and subsequent invocations: Session found Array ( [test] => test Object ( [construct_count:test:private] => 1 [destruct_count:test:private] => 1 ) ) Destructor called. Note: destruct_called increments on each invocation. construct_count does not. -- Edit bug report at http://bugs.php.net/bug.php?id=53534&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53534&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53534&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53534&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53534&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53534&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53534&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53534&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53534&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53534&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53534&r=support Expected behavior: http://bugs.php.net/fix.php?id=53534&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53534&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53534&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53534&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53534&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53534&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53534&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53534&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53534&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53534&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53534&r=mysqlcfg