PHP Array to XML dilemma
I am trying to get some data off my DB and then trying to display it in XML and JSON. After I select everything from the db, I add everything to an array called $data
. So depending on how I want it to be displayed, I can simply json_encode()
it or use some lib ( This One ) to convert to XML. Now my problem/question is that I am trying to form the output style within the array so all I have to do in encode it and output it.
So this is the array data
Array (
[0] => Array ( [Key1] => value1 [Key2] => value2 [Key3] => value3 [Key4] => value4 ) [1] => Array ( [Key1] => value1 [Key2] => value2 [Key3] => value3 [Key4] => value4 ) [2] => Array ( [Key1] => value1 [Key2] => value2 [Key3] => value3 [Key4] => value4 )
)
and I want it to be come out in this form in XML and Json
<xml>
<result>
<key1>value1</key1>
<key2>value2</key2>
<key3>value3</key3>
<key4>value4</key4>
</result>
<result>
<key1>开发者_如何学C;value1</key1>
<key2>value2</key2>
<key3>value3</key3>
<key4>value4</key4>
</result>
<result>
<key1>value1</key1>
<key2>value2</key2>
<key3>value3</key3>
<key4>value4</key4>
</result>
</xml>
Now what I am trying to find a solution for a way to make those arrays with a key result
so when I convert the array directly to json or xml, I dont have to make additional changes to make every result entry abide to the result tag.
Is there a way to do this? Adding every array to key result
overrides all the entries and outputs only the last entry.
Thanks
Lucky you, I was just writing this kind of thing for myself... Basically you supply a list of elements you want to use, by default it will use they key/index. hope this helps.
<?PHP
class Serializer
{
private static function getTabs($tabcount)
{
$tabs = '';
for($i = 0; $i < $tabcount; $i++)
{
$tabs .= "\t";
}
return $tabs;
}
private static function asxml($arr, $elements = Array(), $tabcount = 0)
{
$result = '';
$tabs = self::getTabs($tabcount);
foreach($arr as $key => $val)
{
$element = isset($elements[0]) ? $elements[0] : $key;
$result .= $tabs;
$result .= "<" . $element . ">";
if(!is_array($val))
$result .= $val;
else
{
$result .= "\r\n";
$result .= self::asxml($val, array_slice($elements, 1, true), $tabcount+1);
$result .= $tabs;
}
$result .= "</" . $element . ">\r\n";
}
return $result;
}
public static function toxml($arr, $root = "xml", $elements = Array())
{
$result = '';
$result .= "<" . $root . ">\r\n";
$result .= self::asxml($arr, $elements, 1);
$result .= "</" . $root . ">\r\n";
return $result;
}
}
$arr = Array (
0 => Array
(
'Key1' => 'value1',
'Key2' => 'value2',
'Key3' => 'value3',
'Key4' => 'value4',
),
1 => Array
(
'Key1' => 'value1',
'Key2' => 'value2',
'Key3' => 'value3',
'Key4' => 'value4',
),
2 => Array
(
'Key1' => 'value1',
'Key2' => 'value2',
'Key3' => 'value3',
'Key4' => 'value4',
),
);
?>
Example 1
echo Serializer::toxml($arr, "xml", array("result"));
//output
<xml>
<result>
<Key1>value1</Key1>
<Key2>value2</Key2>
<Key3>value3</Key3>
<Key4>value4</Key4>
</result>
<result>
<Key1>value1</Key1>
<Key2>value2</Key2>
<Key3>value3</Key3>
<Key4>value4</Key4>
</result>
<result>
<Key1>value1</Key1>
<Key2>value2</Key2>
<Key3>value3</Key3>
<Key4>value4</Key4>
</result>
</xml>
Exmaple 2
echo Serializer::toxml($arr, "xml", array("result", "item"));
// output
<xml>
<result>
<item>value1</item>
<item>value2</item>
<item>value3</item>
<item>value4</item>
</result>
<result>
<item>value1</item>
<item>value2</item>
<item>value3</item>
<item>value4</item>
</result>
<result>
<item>value1</item>
<item>value2</item>
<item>value3</item>
<item>value4</item>
</result>
</xml>
Example 3
echo Serializer::toxml($arr, "xml", array(null, "item"));
// output
<xml>
<0>
<item>value1</item>
<item>value2</item>
<item>value3</item>
<item>value4</item>
</0>
<1>
<item>value1</item>
<item>value2</item>
<item>value3</item>
<item>value4</item>
</1>
<2>
<item>value1</item>
<item>value2</item>
<item>value3</item>
<item>value4</item>
</2>
</xml>
I don't think you would need to use a library for this.
echo("<xml>");
foreach($data as $k => $v) {
echo("<result>");
foreach($v as $i => $j)
echo("<".$i.">" . $j . "</".$i.">");
echo("</result>");
}
echo("</xml>");
Assuming your outer array is called $array
use the []
syntax. This will give you an array key called 'result' which itself is an indexed array. When converted to XML, I believe (though have not tested) that its output will be what you are looking for.
$results = array('result' => array());
// Looping over the outer array gives you the inner array of keys
foreach ($array as $result) {
// Append the array of keys to the results array
$results['result'][] = $result;
}
print_r($results);
echo json_encode($results);
Now use your array to XML library to make the XML.
foreach ($data as $key => $value) {
//change false/true to 0/1
if(is_bool($value))
{
$value = (int) $value;
}
// no numeric keys in our xml please!
if (is_numeric($key))
{
// make string key...
$key = (singular($basenode) != $basenode) ? singular($basenode) : 'item';
}
// replace anything not alpha numeric
$key = preg_replace('/[^a-z_\-0-9]/i', '', $key);
// if there is another array found recursively call this function
if (is_array($value) || is_object($value))
{
$node = $structure->addChild($key);
// recursive call.
$this->to_xml($value, $node, $key);
}
else
{
// add single node.
$value = htmlspecialchars(html_entity_decode($value, ENT_QUOTES, 'UTF-8'), ENT_QUOTES, "UTF-8");
$structure->addChild($key, $value);
}
}
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