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[2005-02-26 20:47 UTC] jbeall at heraldic dot us
Description:
------------
If you give a form input a name that should be a numerically indexed array, such as
<input type='text' name='fname[1]' />
It is not possible to directly access the variable via $_GET, $_POST, or $_REQUEST.
Dumping the entire contents of the request using e.g. print_r reveals that the form data is submitted, but it cannot be accessed via e.g. $_POST['fname']['1'] or $_POST['fname'][1]
Presumably this happens because the PHP engine is doing type juggling. When a request variable is submitted and looks like an array, the PHP puts it in an array and indexes the value at the string value '1'. However, when you try to access $_POST['fname']['1'] it sees that '1' could be an integer, converts to an integer transparently to the developer, and of course there is nothing stored at $_POST['fname'][1]. The data was stored at $_POST['fname']['1'].
For whatever reason, embedding the variable in a string appears to solve the problem. E.g., "{$_POST['test'][1]}" works
Reproduce code:
---------------
echo "<pre>"; // So we can use \n for formatting
echo <<<EOT
<form method='GET' action='{$_SERVER['PHP_SELF']}'>
<input type='text' name='test[1]' value='{$_REQUEST['test'][1]}'/>
<input type='submit'/>
</form>
EOT;
echo '('.gettype($test[1]).') value='.$test[1]."\n";
echo '('.gettype($test[1]).') value='.$test['1']."\n";
echo "But it works if we embed in a string ---> {$_REQUEST['test'][1]}\n";
var_dump($_REQUEST['test']);
// Put a string variable in the textbox and submit.
// If using GET method, URL might look like
// bugTest.php?test%5B1%5D=any+string+here
Expected result:
----------------
(string) value=any string here
(string) value=any string here
But it works if we embed in a string ---> any string here
Array
(
[1] => any string here
)
Actual result:
--------------
(NULL) value=
(NULL) value=
But it works if we embed in a string ---> any string here
Array
(
[1] => any string here
)
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Last updated: Sat Oct 25 15:00:01 2025 UTC |
I have tracked down the problem to WDDX not properly serializing arrays. Consider the following: $data = array(1=>"First value",2=>"Second Value",3=>"Third Value"); $wddxPacket = wddx_serialize_value($data); $deserialized = wddx_deserialize($wddxPacket); echo gettype($deserialized[1])." {$deserialized[1]}\n"; var_dump($deserialized); It outputs: NULL array(3) { ["1"]=> string(11) "First value" ["2"]=> string(12) "Second Value" ["3"]=> string(11) "Third Value" } You will note that the indices are now string values rather than integers. This is apparently because the array begins at an index other than 0. The expected output is of course: string First value array(3) { [1]=> string(11) "First value" [2]=> string(12) "Second Value" [3]=> string(11) "Third Value" } Perhaps this should be filed as a separate bug report, or is already a known bug? As far as changing the status, the only statuses that I am able to set it to are "open" and "closed" - "feedback" is not listed as one of my options.