From:             zuohaocheng1022 at gmail dot com
Operating system: Mac OS X
PHP version:      5.5.0RC1
Package:          PDO related
Bug Type:         Bug
Bug description:Fails if named parameters appears more than once

Description:
------------
Pdo-mysql prepared statements execution fails when one named parameter
appears 
more than once in a SQL statement. 

This problem will disappear if set PDO::ATTR_EMULATE_PREPARES to true.

Test script:
---------------
//CREATE TABLE `posts` (
//  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
//  `name` VARCHAR(255),
//  `body` TEXT
//);

$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);

// :search appears twice here
$stmt = $pdo->prepare('SELECT id FROM posts WHERE name LIKE :search OR body
LIKE :search'); 
$s = 'blablah';
$stmt->bindParam(':search', $s);
$stmt->execute(); // This step throws an exception: Error: SQLSTATE[HY093]:
Invalid parameter number
// $stmt->execute([':search'=>$s]); will throw it too
$result = $stmt->fetch();

Expected result:
----------------
No exceptions.

Actual result:
--------------
$stmt>execute fails.

Error: SQLSTATE[HY093]: Invalid parameter number


-- 
Edit bug report at https://bugs.php.net/bug.php?id=64875&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=64875&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=64875&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=64875&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=64875&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=64875&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=64875&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=64875&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=64875&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=64875&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=64875&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=64875&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=64875&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=64875&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64875&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=64875&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=64875&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=64875&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64875&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=64875&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=64875&r=mysqlcfg

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