I have an XML like this
<items>
<item>
<name>A</name>
<phone>1111111</phone>
</item>
<item>
<name>B</name>
<phone>2222222</phone>
</item>
</items>
How can I get the unique nodeNames into an array, like array("name","phone");
$xml = '<items>
<item>
<name>A</name>
<phone>1111111</phone>
</item>
<item>
<name>B</name>
<phone>2222222</phone>
</item>
</items>';
$obj = new SimpleXMLElement($xml);
$arr = json_decode(json_encode($obj), TRUE);
$arr = $arr['item'];
var_dump($arr);
Output:
Array
(
[0] => Array
(
[name] => A
[phone] => 1111111
)
[1] => Array
(
[name] => B
[phone] => 2222222
)
)
If you want to get the array keys, you can do this:
$keys = array_keys($arr[0]);
var_dump($keys);
Output:
Array
(
[0] => name
[1] => phone
)
array_keys($arr[0]) returns array('name', 'phone'). Is that what you mean?$keys = array_keys($arr);, $keys[0] = 'item';. So you can find it out in that way.