ID: 35935 Updated by: [EMAIL PROTECTED] Reported By: victoria at balic dot net -Status: Assigned +Status: Bogus Bug Type: PDO related Operating System: RHEL4-64/CentOS 4.2-64 PHP Version: 5.1.1 Assigned To: wez New Comment:
MySQL doesn't supporting binding output parameters via its C API. You must use SQL level variables: $stmt = $db->prepare("CALL sp_returns_string(@a)"); $stmt->execute(); print_r($db->query("SELECT @a")->fetchAll()); Previous Comments: ------------------------------------------------------------------------ [2006-03-09 19:55:22] keyvez at hotmail dot com I am experiencing the same issue on Windows and MSSQL. Stored Procedure Create Code: ****************************************** CREATE PROCEDURE [dbo].[p_sel_all_termlength] @err INT = 0 OUTPUT AS SELECT * FROM termlength SET @err = 2627 ****************************************** PHP Code: ****************************************** $Link = new PDO('mssql:host=sqlserver;dbname=database', 'username', 'password'); $ErrorCode = 0; $Stmt = $Link->prepare('p_sel_all_termlength ?'); $Stmt->bindParam(1,$ErrorCode,PDO::PARAM_INT,4); $Stmt->execute(); echo "Error = " . $ErrorCode . "\n"; while ($Row = $Stmt->fetch(PDO::FETCH_OBJ)) { echo $Row->description . "\n"; } echo "Error = " . $ErrorCode . "\n"; ****************************************** PHP Output: ****************************************** Error = 0 9 Weeks Semester One Year Trimester Error = 0 ****************************************** ------------------------------------------------------------------------ [2006-01-09 20:34:14] victoria at balic dot net I just used the latest snapshot as instructed (5.1.2RC3-dev 20060109) and I get the same behaviour as reported above -- ie. the PDO call returns empty value when using bindParam(). ------------------------------------------------------------------------ [2006-01-09 10:19:30] [EMAIL PROTECTED] Please try using this CVS snapshot: http://snaps.php.net/php5.1-latest.tar.gz For Windows: http://snaps.php.net/win32/php5.1-win32-latest.zip ------------------------------------------------------------------------ [2006-01-09 00:26:08] victoria at balic dot net Description: ------------ I created a trivial stored procedure in MySQL (v5.0.17) that simply returns an integer constant. If I call the procedure using a PDO statement and binding a return value $stmt->bindParam(), I get nothing. On the other hand, if I issue two SQL queries to implicitly obtain the result, things are ok (see below). So something is broken with the way PDO handles bindParam. I am using the latest stable release of PHP (5.1.1), MySQL 5.0.17 and mod_php for Apache 2.2 Reproduce code: --------------- <?php $DB = new PDO(...); if($DB != NULL) { $stmt = $DB->prepare(" CALL test_pdo(?)"); $stmt->bindParam(1, $return_value, PDO::PARAM_INT, 10); $stmt->execute(); print "Procedure returned: $return_value \n"; //try instead plain SQL call $DB->query("CALL test_pdo(@nn)"); $rows = $DB->query("SELECT @nn")->fetchAll(); print "SELECT returned: \n"; print_r($rows); } ?> And here's actual MySQL Stored procedure: CREATE PROCEDURE test_pdo (OUT Pout INTEGER) BEGIN SET Pout := 1912; END Expected result: ---------------- $return_value should have been set to "1912" and instead it's empty. The stored procedure is working ok as the second call (in which i implicitly obtain the output by making two SQL queries) returns the correct value (see below). Actual result: -------------- Procedure returned: SELECT returned: Array ( [0] => Array ( [EMAIL PROTECTED] => 1912 [0] => 1912 ) ) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=35935&edit=1