Bug #52637 [Opn]: bug in prepare statement

From: Date: Mon, 06 Sep 2010 13:14:02 +0000
Subject: Bug #52637 [Opn]: bug in prepare statement
References: 1  Groups: php.bugs 
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Edit report at http://bugs.php.net/bug.php?id=52637&edit=1

 ID:                 52637
 Updated by:         uw@php.net
 Reported by:        angelo dot courtel at laposte dot net
 Summary:            bug in prepare statement
 Status:             Open
 Type:               Bug
 Package:            PDO related
 Operating System:   Debian Lenny
 PHP Version:        5.2.6-1+lenny6
 Block user comment: N

 New Comment:

Well, if you comment out your SQL statement, it should work fine
regardless what it may look like... "-- " starts a single line SQL
comment.


Previous Comments:
------------------------------------------------------------------------
[2010-08-19 10:06:12] angelo dot courtel at laposte dot net

A little example for explain my bug :
This source works correctly on an Windows WAMP PHP5.2.6
But not on Debian :(

<?php
//running on PHP Version 5.2.6-1+lenny6
try {
    $dbh = new
PDO('pgsql:host=localhost;port=5432;dbname=db;user=user;password=pass');
} catch (PDOException $e) {
    echo 'Connexion failed : ' . $e->getMessage();exit;
}
//list or parameters
$id = 40;
$id2 = 40;
$param = array (':id' => $id, ':id2' => $id2);

//query failed
$sReq = '
	select * from t1
	left join t2 on t2.id = :id
	left join t3 on t3.id = :id
	where t1.id = :id2';

$rTest1 = $dbh->prepare($sReq);
if ($rTest1->execute($param))
	echo 'OK';
else
	var_dump($rTest1->errorInfo());
// --> array(3) { [0]=>  string(5) "42P18" [1]=>  int(7) [2]=> 
string(69) "ERREUR: n'a pas pu déterminer le type de données du
paramètres $2" } 

$rTest2 = $dbh->prepare($sReq);
$rTest2->bindParam(':id', $id);
$rTest2->bindParam(':id2', $id2);
if ($rTest2->execute())
	echo 'OK';
else
	var_dump($rTest2->errorInfo());
// --> array(3) { [0]=>  string(5) "42P18" [1]=>  int(7) [2]=> 
string(69) "ERREUR: n'a pas pu déterminer le type de données du
paramètres $2" } 

//query success
$sReq = '
	-- :id :id2
	select * from t1
	left join t2 on t2.id = :id
	left join t3 on t3.id = :id
	where t1.id = :id2';

$rTest3 = $dbh->prepare($sReq);
if ($rTest3->execute($param))
	echo 'OK';
else
	var_dump($rTest3->errorInfo());
// --> OK

$rTest4 = $dbh->prepare($sReq);
$rTest4->bindParam(':id', $id);
$rTest4->bindParam(':id2', $id2);
if ($rTest4->execute())
	echo 'OK';
else
	var_dump($rTest4->errorInfo());
// --> OK
?>

------------------------------------------------------------------------
[2010-08-19 06:55:59] angelo dot courtel at laposte dot net

Hi, I use PostGreSql Pdo driver
Thks

------------------------------------------------------------------------
[2010-08-19 01:17:32] felipe@php.net

What PDO driver are you using?

------------------------------------------------------------------------
[2010-08-18 18:18:03] angelo dot courtel at laposte dot net

Description:
------------
Hi

when I execute a prepared query which use twice, or more, a same
parameters, it 
returns an error : in french : ERREUR:  n'a pas pu déterminer le type
de données 
du paramètres $3

ie. : this query don't works
$sReq = 'select *
	from categorie
	left join budget on bud_cat = cat_cod and bud_moi = :month and bud_ann
= 
:year
	left join operation on ope_cat = cat_cod and ope_moi = :month and 
ope_ann = :year
	where cat_cod = :categorie';
$rCategorie = $oAppli->getDb()->prepare($sReq);
$rCategorie->bindParam(':month', date('m'));
$rCategorie->bindParam(':categorie', $sCategorie);
$rCategorie->bindParam(':year', date('Y'));
if ($rCategorie->execute())

but if I add "--  :year :categorie :month" at the beginning of the
query, it 
works !!!
I thinks PDO don't like seeing a repeated parameter before seens all the

parameters (the :month appears twice before :categorie, almost with the
comment 
at the beginning, PDO see all parameters at start)

Sorry for my english I'm french guy.

Thks

Test script:
---------------
//don't work
$sReq = 'select *
	from categorie
	left join budget on bud_cat = cat_cod and bud_moi = :month and bud_ann
= :year
	left join operation on ope_cat = cat_cod and ope_moi = :month and
ope_ann = :year
	where cat_cod = :categorie';
$rCategorie = $oAppli->getDb()->prepare($sReq);
$rCategorie->bindParam(':month', date('m'));
$rCategorie->bindParam(':categorie', $sCategorie);
$rCategorie->bindParam(':year', date('Y'));
if ($rCategorie->execute())

//works fine

$sReq = '--  :year :categorie :month
	select *
	from categorie
	left join budget on bud_cat = cat_cod and bud_moi = :month and bud_ann
= :year
	left join operation on ope_cat = cat_cod and ope_moi = :month and
ope_ann = :year
	where cat_cod = :categorie';
$rCategorie = $oAppli->getDb()->prepare($sReq);
$rCategorie->bindParam(':month', date('m'));
$rCategorie->bindParam(':categorie', $sCategorie);
$rCategorie->bindParam(':year', date('Y'));
if ($rCategorie->execute())




------------------------------------------------------------------------



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