Doc #66613 [Opn]: PDOStatement::columnCount in mysql

Edit report at https://bugs.php.net/bug.php?id=66613&edit=1 ID: 66613 User updated by: a at enaza dot ru Reported by: a at enaza dot ru Summary: PDOStatement::columnCount in mysql Status: Open Type: Documentation Problem Package: PDO MySQL PHP Version: Irrelevant Block user comment: N Private report: N New Comment: I think, statement "If there is no result set" could be defined twofold. It should to be clarified in the documentation. Previous Comments: ------------------------------------------------------------------------ [2014-02-02 15:48:36] jareas at thegeekbeaver dot net I got confused on this one. According to documentation, it supposed to return "0" only if the result set does not exist. It is quite different from result set is empty, in my opinion. What I understood from the documentation is if the $sth object does not have a result set it will return "0". This was illustrated by the documentation on this line: $sth = $dbh->prepare("SELECT name, colour FROM fruit"); Here we still do not have a record set. Then, $sth->columnCount() call will return "0". But, after we actually run the query calling: $sth->execute(); we should get the column count even if the result set is empty. Thats what I understood. What do you think? ------------------------------------------------------------------------ [2014-01-30 12:25:51] a at enaza dot ru Description: ------------ --- From manual page: http://www.php.net/pdostatement.columncount --- According to the documentation, PDOStatement::columnCount() should returns "0", if result set is empty, but i get count fields from query, see example. Test script: --------------- $pdo = new PDO("mysql:host={$host};dbname={$database}", $username, $password); $rs = $pdo->query("SELECT 1,2,3 LIMIT 0"); var_dump($rs->columnCount()); Expected result: ---------------- int(0) Actual result: -------------- int(3) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66613&edit=1