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Bug #67100 Array copy and reference problem in pecl module.
Submitted: 2014-04-21 08:26 UTC Modified: 2018-02-28 17:21 UTC
Votes:9
Avg. Score:4.6 ± 0.7
Reproduced:8 of 9 (88.9%)
Same Version:6 (75.0%)
Same OS:5 (62.5%)
From: greevex at gmail dot com Assigned:
Status: Open Package: mongo (PECL)
PHP Version: 5.5.11 OS: Scientific Linux 6.5
Private report: No CVE-ID: None
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 [2014-04-21 08:26 UTC] greevex at gmail dot com
Description:
------------
php-pecl-mongo version 1.4.5

I don't really think that it's problem in mongo pecl module, because this is problem  of an inside PHP Engine (optimizations for passing variables by reference before it's changed).

Test script:
---------------
function prepare() {
    return [
        'key' => 'test1',
        'create' => time(),
        'update' => 0,
        'value' => 0
    ];
}
function save($array2) {
    $db = (new Mongo('localhost'))->selectDB('test');
    $collection = $db->selectCollection('test');
    // array2: new field `_id` would be added, insert requesting param by reference
    $collection->insert($array2);
    // `some` field only in array1, but `_id` field in both arrays
    return $array2;
}
$array1 = prepare();
$array2 = save($array1);
// array1: add `some` field to array1
$array1['some'] = true;
var_dump(isset($array1['_id']), isset($array2['_id']), isset($array1['some']), isset($array2['some']));

Expected result:
----------------
bool(false)
bool(true)
bool(true)
bool(false)

Actual result:
--------------
bool(true)
bool(true)
bool(true)
bool(false)

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 [2018-02-28 17:21 UTC] cmb@php.net
-Package: Scripting Engine problem +Package: mongo
 
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