Edit report at https://bugs.php.net/bug.php?id=62207&edit=1

 ID:                 62207
 Comment by:         mail+php at requinix dot net
 Reported by:        mike dot mackintosh at angrystatic dot com
 Summary:            foreaching bindparam results in all params equaling
                     last value
 Status:             Open
 Type:               Bug
 Package:            PDO related
 Operating System:   Ubuntu 12.04 x86_64
 PHP Version:        5.4.4RC2
 Block user comment: N
 Private report:     N

 New Comment:

Not a bug.

bindParam() works the value by-reference, which means you passed it a reference 
to the $value variable. Not 
its value at the time you called it. When the loop ends and you call query(), 
$value will be whatever the 
last one in the $array was: 1.

Use a reference to the item in the array:
  $stmt2->bindParam($param, $array[$param]);


Previous Comments:
------------------------------------------------------------------------
[2012-06-01 14:39:11] mike dot mackintosh at angrystatic dot com

Description:
------------
I have noticed an issue when working with MySQL and PDO prepare statements. If 
running a foreach on an array which contains the params for the prepare 
statement, all params equal the value of the last param in the array. 

See below.

Test script:
---------------
$pdo = new PDO('mysql:dbname=netsec_v2;host=localhost;', 'root', '');
$stmt = $pdo->prepare("CREATE TABLE BugTest 
                        (
                        ID int NOT NULL AUTO_INCREMENT,
                        PRIMARY KEY(ID),
                        ColumnA varchar(15) NOT NULL,
                        ColumnB int NOT NULL
                        )");
$stmt->execute();
                
$array = array(":ColumnA" => "A", ":ColumnB" => 1);
                
$stmt2 = $pdo->prepare("INSERT INTO BugTest (ColumnA,ColumnB) VALUES (:ColumnA, 
:ColumnB)");

foreach($array as $param => $value){
        $stmt2->bindParam($param, $value);      
}
$stmt2->execute();
                
$res = $pdo->query("SELECT * FROM BugTest")->fetchAll(PDO::FETCH_ASSOC);
var_dump($res);


Expected result:
----------------
ColumnA = A
ColumnB = 1

Actual result:
--------------
ColumnA = 1
ColumnB = 1


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



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