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Bug #79106 PDO may fetch wrong column indexes with PDO::FETCH_BOTH
Submitted: 2020-01-12 18:13 UTC Modified: 2020-01-13 17:52 UTC
From: cmb@php.net Assigned: cmb (profile)
Status: Closed Package: PDO Core
PHP Version: 7.3Git-2020-01-12 (Git) OS: *
Private report: No CVE-ID: None
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 [2020-01-12 18:13 UTC] cmb@php.net
Description:
------------
I've noticed that PDO exhibits the same erroneous behavior
that has been reported as bug #79084 regarding MySQLi, namely
that PDO::FETCH_BOTH may mess up numeric indexes, if there are
numeric column names.

While this has been reported as bug #44190 long ago, and that
ticket has been closed as not a bug, I think we should reconsider.


Test script:
---------------
<?php
$pdo = new PDO('sqlite::memory:');
$stmt = $pdo->query("SELECT 0 as `2007`, 0 as `2008`, 0 as `2020`");
var_dump($stmt->fetchAll());
?>


Expected result:
----------------
array(1) {
  [0]=>
  array(6) {
    [0]=>
    string(1) "0"
    [2007]=>
    string(1) "0"
    [1]=>
    string(1) "0"
    [2008]=>
    string(1) "0"
    [2]=>
    string(1) "0"
    [2020]=>
    string(1) "0"
  }
}


Actual result:
--------------
array(1) {
  [0]=>
  array(5) {
    [2007]=>
    string(1) "0"
    [2008]=>
    string(1) "0"
    [2009]=>
    string(1) "0"
    [2020]=>
    string(1) "0"
    [2021]=>
    string(1) "0"
  }
}


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 [2020-01-13 17:50 UTC] cmb@php.net
Automatic comment on behalf of cmbecker69@gmx.de
Revision: http://git.php.net/?p=php-src.git;a=commit;h=30ce242435393cfe629feffcba6e1f086af7205c
Log: Fix #79106: PDO may fetch wrong column indexes with PDO::FETCH_BOTH
 [2020-01-13 17:50 UTC] cmb@php.net
-Status: Open +Status: Closed
 [2020-01-13 17:52 UTC] cmb@php.net
-Assigned To: +Assigned To: cmb
 
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