Load XML string from $_POST array

Question

I receive a $_POST array from a system after a certain action has been performed on a database. I've tried accesing the array and saving it as an simple_xml object. So far I have not succeeded. The array which is being sent looks like this.

Array
(
     [xml] => <?xml version=\"1.0\"?>
     <callback><profile><id>313009</id><fields><email>[email protected]</email><nieuwsbrief>8</nieuwsbrief></fields><interests></interests></profile><action>update</action><parameters><nieuwsbrief>8</nieuwsbrief></parameters></callback>
)

I've tried storing this as a simple_xml object like this.

if($xml_test = simplexml_load_string($_POST['xml']))
{
    $xml_test->saveXML('test.xml');
}

I can save a different kind of .xml file so I'm sure the permissions are set right. As for the rest I'm not that familiar with formatting and parsing .xml files so I hope anyone could help a hand with this.

My desired outcome is that I can access the newly made simple_xml object and access the values and fields.

Trying a var_dump() on the array seeing what else is in it. had it on print_r() — Rimble
– Rimble, Commented Apr 16, 2014 at 16:04
What errors are you getting? Set error_reporting(E_ALL); at the top. — Devon Bessemer
– Devon Bessemer, Commented Apr 16, 2014 at 16:06

AbraCadaver · Accepted Answer · 2014-04-16 16:11:15Z

1

Need to stripslashes():

$string = stripslashes($_POST['xml']);

if($xml_test = simplexml_load_string($string))
{
    $xml_test->saveXML('test.xml');
}

It would be better to turn off magic_quotes_gpc in php.ini:

answered Apr 16, 2014 at 16:11

AbraCadaver

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2 Comments

Álvaro González Over a year ago

Well spot. I hadn't noticed that the input is not valid XML.

Rimble Over a year ago

Thank you that did it. Was it the <?xml version=\"1.0\"?> part which made it a non valid xml string?

cy834sh4rk · Accepted Answer · 2014-04-16 16:10:11Z

0

saveXML() will write out the XML into the file. If you want to access the XML elements you will need to do so by doing something like

    $action = $xml_test->action;
    echo $action;

You can try printing out the simplexml object so you can see its structure of it by doing

    print_r($xml_test);

answered Apr 16, 2014 at 16:10

cy834sh4rk

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