Bug #72628 [NEW]: PDO constructer return null when arguments are unexpected types

From: kazu9su at gmail dot com Operating system: PHP version: 5.6.23 Package: PDO related Bug Type: Bug Bug description:PDO constructer return null when arguments are unexpected types Description: ------------ PDO contructer return null and output warning() when given unexpected type arguments. I think it is better that throw PDO exception with relevant message or update PHPDoc to indicate this specification. How about that? Test script: --------------- <?php try { $pdo = new PDO('pgsql:host=db;dbname=hoge', 'postgres', [], []); var_dump(is_null($pdo)); } catch(PDOException $e) { var_dump($e->getMessage()); } Expected result: ---------------- string(64) "PDO::__construct() expects parameter 3 to be string, array given" Actual result: -------------- Warning: PDO::__construct() expects parameter 3 to be string, array given in /Users/kazushige.tominaga/test-prestissimo/hoge.php on line 2 bool(true) -- Edit bug report at https://bugs.php.net/bug.php?id=72628&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72628&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72628&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72628&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=72628&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=72628&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=72628&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=72628&r=needscript Try newer version: https://bugs.php.net/fix.php?id=72628&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=72628&r=support Expected behavior: https://bugs.php.net/fix.php?id=72628&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=72628&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=72628&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=72628&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72628&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=72628&r=dst IIS Stability: https://bugs.php.net/fix.php?id=72628&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=72628&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=72628&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=72628&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=72628&r=mysqlcfg