Edit report at http://bugs.php.net/bug.php?id=54632&edit=1
ID: 54632
Comment by: enrico at zimuel dot it
Reported by: enrico at zimuel dot it
Summary: json_encode() doesn't convert SimpleXML data
properly
Status: Open
Type: Bug
Package: JSON related
Operating System: Ubuntu Linux 10.04
PHP Version: 5.3.6
Block user comment: N
Private report: N
New Comment:
I agree that the var_dump output of the SimpleXMLElement doesn't
contains the text value of the <a> element. But, as you said, you can
get it from $bar = (string) $simpleXML, that means the data is inside
the SimpleXMLElement even if the values is not explicit.
The problem here is related to the fact that there is not a standard way
to convert an XML into JSON. IBM proposed the JSONx format. To continue
to follow the syntax used by SimpleXMLElement we can add a special
element (like '@attributes') to manage the text value.
For instance the xml document: <a><b id="foo"/>bar</a> can be translated
in {"a":{"b":{"@attributes":{"id":"foo"}},"@text":"bar"}}.
So, the problem is in SimpleXMLElement? I don't know, for sure the
result of json_encode() is not correct.
Previous Comments:
------------------------------------------------------------------------
[2011-04-29 16:20:29] felipecg00 at gmail dot com
Looks like the problem is not the json_encode.
var_dump( $simpleXML );
object(SimpleXMLElement)#1 (1) {
["b"]=>
object(SimpleXMLElement)#2 (1) {
["@attributes"]=>
array(1) {
["id"]=>
string(3) "foo"
}
}
}
Where is bar? This is the behavior of SimpleXML. You can try using
DOMDocument:
$dd = new DOMDocument();
$dd->loadXML('<?xml version="1.0" encoding="UTF-8" ?><a><b
id="foo"/>bar</a>');
echo $dd->documentElement->textContent; // outputs bar
Still, you can force the SimpleXMLElement to be a string, so it will
contain the text inside the node:
$bar = (string) $simpleXML;
echo $bar; // outputs 'bar'
And yet, there is dom_import_simplexml(), which converts a SimpleXML
node into a DOMDocument node. But that i've never used before.
I think the right thing to do is to keep the text inside text-only
nodes.
------------------------------------------------------------------------
[2011-04-29 13:42:27] enrico at zimuel dot it
Description:
------------
I tried to encode the following XML document in JSON using json_encode()
and the result doesn't reflect the XML structure.
XML document:
<?xml version="1.0" encoding="UTF-8" ?>
<a><b id="foo"/>bar</a>
Result of json_encode():
{"b":{"@attributes":{"id":"foo"}}}
The JSON results lost the "bar" value of the XML document.
This is the source code that is used:
<?php
$xml='<?xml version="1.0" encoding="UTF-8" ?><a><b id="foo"/>bar</a>';
$simpleXML= simplexml_load_string($xml);
echo json_encode($simpleXML);
Test script:
---------------
$xml='<?xml version="1.0" encoding="UTF-8" ?><a><b id="foo"/>bar</a>';
$simpleXML= simplexml_load_string($xml);
echo json_encode($simpleXML);
Expected result:
----------------
It's not obviuos the correct JSON rappresentation of the above XML
document.
In my opinion it can be as follow:
{"a":[{"b":{"@attributes":{"id":"foo"}}},"bar"]}
Where the value "bar" is included in a JSON array using the syntax [...]
Actual result:
--------------
{"b":{"@attributes":{"id":"foo"}}}
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=54632&edit=1
