object(InvalidArgumentException)#4 (7) { ["message":protected]=> string(30) "Invalid entry specifier passed" ["string":"Exception":private]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(46) "/home/hakobura/www/htdocs/db/class.article.php" ["line":protected]=> int(49) ["trace":"Exception":private]=> array(1) { [0]=> array(6) { ["file"]=> string(40) "/home/hakobura/www/htdocs/db/article.php" ["line"]=> int(29) ["function"]=> string(11) "__construct" ["class"]=> string(7) "Article" ["type"]=> string(2) "->" ["args"]=> array(3) { [0]=> string(29) "db-guide/2011/04/post-57.html" [1]=> object(PDO)#1 (0) { } [2]=> object(PDO)#2 (0) { } } } } ["previous":"Exception":private]=> NULL }