SimpleXMLElement::attributes
Ok so say you have this xml:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!DOCTYPE nitf
PUBLIC "-//IPTC-NAA//DTD NITF 3.1//EN"
"http://www.nitf.org/site/nitf-documentation/nitf-3-1.dtd">
<nitf>
<head>
<docdata management-status="embargoed">
<!--data/2011/08/23/parties/doc4e53aa5783cca930694817.txt-->
<doc-id id-string="doc4e53aa5783cca930694817"/>
<date.release norm="20110823T000000"/>
<key-list/>
</docdata>
<pubdata type="web" position.section="parties" position.sequence="0"/>
</head>
-- snip --
If you need to access the nodes named "like.this" such as the date.release above, here is how I did it:
$xml = new SimpleXMLElement($xhtml);
echo (string)$xml->head->docdata->{"date.release"}["norm"];
Took me a while to figure that one out ;)
SimpleXMLElement::children
(PHP 5 >= 5.0.1)
SimpleXMLElement::children — 指定したノードの子ノードを見付ける
説明
このメソッドは、指定した要素の子を見つけます。 結果は、通常の反復子により取得できます。
注意: SimpleXML では、ほとんどのメソッドに反復処理を追加するための手順が定義されています。 これらは、var_dump() やオブジェクトを評価する他の手段で 見ることはできません。
パラメータ
-
ns -
XML 名前空間。
-
is_prefix -
is_prefixがTRUEの場合はnsをプレフィックスとして扱います。FALSEの場合はnsを名前空間 URL として扱います。
返り値
ノードが子を持つかどうかにかかわらず SimpleXMLElement 要素を返します。
変更履歴
| バージョン | 説明 |
|---|---|
| 5.2.0 |
オプションのパラメータ is_prefix が追加されました。
|
例
例1 children() 疑似配列を走査する
<?php
$xml = new SimpleXMLElement(
'<person>
<child role="son">
<child role="daughter"/>
</child>
<child role="daughter">
<child role="son">
<child role="son"/>
</child>
</child>
</person>');
foreach ($xml->children() as $second_gen) {
echo ' The person begot a ' . $second_gen['role'];
foreach ($second_gen->children() as $third_gen) {
echo ' who begot a ' . $third_gen['role'] . ';';
foreach ($third_gen->children() as $fourth_gen) {
echo ' and that ' . $third_gen['role'] .
' begot a ' . $fourth_gen['role'];
}
}
}
?>
上の例の出力は以下となります。
The person begot a son who begot a daughter; The person begot a daughter who begot a son; and that son begot a son
例2 名前空間の使用
<?php
$xml = '<example xmlns:foo="my.foo.urn">
<foo:a>Apple</foo:a>
<foo:b>Banana</foo:b>
<c>Cherry</c>
</example>';
$sxe = new SimpleXMLElement($xml);
$kids = $sxe->children('foo');
var_dump(count($kids));
$kids = $sxe->children('foo', TRUE);
var_dump(count($kids));
$kids = $sxe->children('my.foo.urn');
var_dump(count($kids));
$kids = $sxe->children('my.foo.urn', TRUE);
var_dump(count($kids));
$kids = $sxe->children();
var_dump(count($kids));
?>
int(0) int(2) int(2) int(0) int(1)
注意
SimpleXMLElement::children() は、現在のノードに子があるか否かにかかわらずノードオブジェクトを返します。 子があるかどうかを調べるには、返り値の count() を使います。PHP 5.3.0 以降では、かわりに SimpleXMLElement::count() を使うことができます。
add a note
User Contributed Notes
SimpleXMLElement::children
thetazzbot at gmail dot com
09-Sep-2011 03:56
coldshine1 at rambler dot ru
10-Dec-2010 11:37
This is my recursive simple function to parse XML with attributes.
<?php
function ParseXML($node, &$parent=array(), $only_child=true) {
//Current node name
$node_name = $node->getName();
//Let's count children
$only_child = true;
if($node->count() > 1 ) $only_child = false;
//If there is no child, then there may be text data
if($only_child){
$content="$node";
if (strlen($content)>0) $parent['content']=$content;
}
//Get attributes of current node
foreach ($node->attributes() as $k=>$v) {
$parent['@attributes'][$k]="$v";
}
//Get children
$count = 0;
foreach ($node->children() as $child_name=>$child_node) {
if(!$only_child) //If there are siblings then we'll add node to the end of the array
LGServerPVR::ParseXML($child_node, $parent[$node_name][$child_name][$count], $only_child);
else
LGServerPVR::ParseXML($child_node, $parent[$node_name][$child_name], $only_child);
$count++;
}
return $parent;
//(c) c01d[s]h!nE 10.12.2010
}
?>
Anonymous
26-Oct-2010 02:19
Here's my xml-to-array routine. Unlike many of the other comments here, this one takes namespaces into account.
<?php
class XmlArray {
public function load_dom ($xml) {
$node=simplexml_import_dom($xml);
return $this->add_node($node);
}
public function load_string ($s) {
$node=simplexml_load_string($s);
return $this->add_node($node);
}
private function add_node ($node, &$parent=null, $namespace='', $recursive=false) {
$namespaces = $node->getNameSpaces(true);
$content="$node";
$r['name']=$node->getName();
if (!$recursive) {
$tmp=array_keys($node->getNameSpaces(false));
$r['namespace']=$tmp[0];
$r['namespaces']=$namespaces;
}
if ($namespace) $r['namespace']=$namespace;
if ($content) $r['content']=$content;
foreach ($namespaces as $pre=>$ns) {
foreach ($node->children($ns) as $k=>$v) {
$this->add_node($v, $r['children'], $pre, true);
}
foreach ($node->attributes($ns) as $k=>$v) {
$r['attributes'][$k]="$pre:$v";
}
}
foreach ($node->children() as $k=>$v) {
$this->add_node($v, $r['children'], '', true);
}
foreach ($node->attributes() as $k=>$v) {
$r['attributes'][$k]="$v";
}
$parent[]=&$r;
return $parent[0];
}
}
?>
alan at performantsystems dot com
11-Aug-2010 11:40
As I have occasion to retrieve a single data item rather than a list, I wanted a way to just grab and parse one data item from XML. Here is one way to do that:
<?php
echo "\n";
$XML =
'<data>
<USERS>
<ID>alang</ID>
<NAME>Alan Gruskoff</NAME>
<ROLE>mgr</ROLE>
</USERS>
</data>';
$xmlObject = new SimpleXMLElement($XML);
$node = $xmlObject->children();
echo "var_dump node\n";
var_dump($node);
echo "\n";
echo "\nnode ID=". $node[0]->ID;
echo "\nnode NAME=". $node[0]->NAME;
echo "\nnode ROLE=". $node[0]->ROLE;
echo "\n";
?>
This will show the contents of the $node child of the $xmlObject and then the specific element values.
php at shiinaringo dot se
18-Feb-2010 11:42
Most examples on this page do not take namespaces into account, rendering them useless in many cases. Here is a function to convert xml to array. You have to feed it the list of namespaces to use. Watch the example at the bottom.
<?php
function xml2phpArray($xml, $namespaces, $arr) {
$iter = 0;
foreach ($namespaces as $namespace => $namespaceUrl) {
foreach ($xml->children($namespaceUrl) as $b) {
$a = $b->getName();
if ($b->children($namespaceUrl)) {
$arr[$a][$iter] = array();
$arr[$a][$iter] = xml2phpArray($b, $namespaces, $arr[$a][$iter]);
}
else {
$arr[$a] = trim($b[0]);
}
$iter++;
}
}
return $arr;
}
$xml = simplexml_load_file('http://urltosomexmlfile.xml');
$namespaces = array_merge(array('' => ''), $xml->getDocNamespaces(true));
$myArray = array();
$myArray = xml2phpArray($xml, $namespaces, $myArray);
?>
mrdaniellee at live dot com
10-Jan-2010 06:11
use this If you want to view the HTML as well as data.
normal dumps display the parsed versions of HTML.
This code displays the HTML as Text in a Text Area, and also display all other a data along side as an array
perfect for debugging (xml with html).
Try This Code:
<?php
$xml = simplexml_load_file($url);
function xml2array_parse($xml){
foreach ($xml->children() as $parent => $child){
$return["$parent"] = xml2array_parse($child)?xml2array_parse($child):"$child";
}
return $return;
}
print "<pre><textarea style=\"width:200%;height:100%;\">";
print_r(xml2array_parse($xml));
print "</textarea></pre>";
?>
rodmen at gmail dot com
21-May-2009 05:32
Transform xml to array php
<?php
function xml2phpArray($xml,$arr){
$iter = 0;
foreach($xml->children() as $b){
$a = $b->getName();
if(!$b->children()){
$arr[$a] = trim($b[0]);
}
else{
$arr[$a][$iter] = array();
$arr[$a][$iter] = xml2phpArray($b,$arr[$a][$iter]);
}
$iter++;
}
return $arr;
}
$Array = simplexml_load_string(file_get_contents('myfile.xml'));
print_r(xml2phpArray($Array,array()));
?>
G dot B dot Yahav at Gmail dot com
25-Mar-2009 07:26
I done a very nice function to run over the XML element recursivly with SimpleXML, and print it on the screen
here it is:
<?php
$xml_han = new SimpleXMLElement( "data.xml", null, true );
print RecursiveXML( $xml_han );
function RecursiveXML( SimpleXMLElement $han, $preffix = "")
{
if( count( $han->children() ) < 1 )
{
return $preffix . "<" . $han->getName() . warpAttributes( $han->attributes() ) . "> " . $han . " </" . $han->getName() . "><br />";
}
$ret = $preffix . "<" . $han->getName() . warpAttributes( $han->attributes() ) . "><br />";
foreach( $han->children() as $key => $child )
{
$ret .= RecursiveXML($child , $preffix . "|-- " );
}
return $ret;
}
?>
enjoy :)
hoseinnj at google's great mail dot com
19-Mar-2009 08:25
Quick easy way to turn objectified SimpleXMLElement data into an array.
<?php
function get_xml_from_some_source(){
//blah blah blah build cUrl
$data = @curl_exec($ch);
$newdata = new SimpleXMLElement($data);
$new = xml2array_parse($newdata);
}
function xml2array_parse($xml){
foreach ($xml->children() as $parent => $child){
$return["$parent"] = xml2array_parse($child)?xml2array_parse($child):"$child";
}
return $return;
}
?>
My first post, be nice. ;-)
Anonymous
06-Sep-2008 02:39
for XML namespaces such as <dc:creator> in RSS feeds use
<?php
$xml = new SimpleXMLElement($string);
$item = $xml->channel[0]->item[0];
$dc = $item->children("http://purl.org/dc/elements/1.1/");
echo $dc->creator;
?>
transglobe at gmx dot de
19-Mar-2008 11:37
I made a slightly differnt approch towards the RecurseXML function. Beeing hungry I had problems with the code, as it did just overwrite two <maincourse>s. So here is what I did:
<?php
$xml = new SimpleXMLElement(
'<meal>
<type>Lunch</type>
<time>12:30</time>
<menu>
<entree>salad</entree>
<maincourse>
<part>ships</part>
<part>steak</part>
</maincourse>
<maincourse>
<part>fisch</part>
<part>rice</part>
</maincourse>
<maincourse>
<part>wine</part>
<part>cheese</part>
</maincourse>
</menu>
</meal>');
$vals = array();
RecurseXML($xml,$vals);
foreach($vals as $key=>$value)
print("{$key} = {$value}<BR>\n");
function RecurseXML($xml,&$vals,$parent="") {
$childs=0;
$child_count=-1; # Not realy needed.
$arr=array();
foreach ($xml->children() as $key=>$value) {
if (in_array($key,$arr)) {
$child_count++;
} else {
$child_count=0;
}
$arr[]=$key;
$k=($parent == "") ? "$key.$child_count" : "$parent.$key.$child_count";
$childs=RecurseXML($value,$vals,$k);
if ($childs==0) {
$vals[$k]= (string)$value;
}
}
return $childs;
}
?>
Output is like this:
type.0 = Lunch
time.0 = 12:30
menu.0.entree.0 = salad
menu.0.maincourse.0.part.0 = ships
menu.0.maincourse.0.part.1 = steak
menu.0.maincourse.0 =
menu.0.maincourse.1.part.0 = fisch
menu.0.maincourse.1.part.1 = rice
menu.0.maincourse.1 =
menu.0.maincourse.2.part.0 = wine
menu.0.maincourse.2.part.1 = cheese
menu.0.maincourse.2 =
menu.0 =
(Not beautiful, but it solved my case...)
crescentfreshpot at yahoo dot com
10-Dec-2007 05:16
Just a warning that the iterable returned from children() contains the '@attributes' key, which is "invisible" during a foreach but can be seen if using a different construct, such as list()=each() or casting to an array before iterating w/ foreach.
aero
23-May-2007 05:07
Here's a simple, recursive, function to transform XML data into pseudo E4X syntax ie. root.child.value = foobar
<?php
error_reporting(E_ALL);
$xml = new SimpleXMLElement(
'<Patriarch>
<name>Bill</name>
<wife>
<name>Vi</name>
</wife>
<son>
<name>Bill</name>
</son>
<daughter>
<name>Jeri</name>
<husband>
<name>Mark</name>
</husband>
<son>
<name>Greg</name>
</son>
<son>
<name>Tim</name>
</son>
<son>
<name>Mark</name>
</son>
<son>
<name>Josh</name>
<wife>
<name>Kristine</name>
</wife>
<son>
<name>Blake</name>
</son>
<daughter>
<name>Liah</name>
</daughter>
</son>
</daughter>
</Patriarch>');
RecurseXML($xml);
function RecurseXML($xml,$parent="")
{
$child_count = 0;
foreach($xml as $key=>$value)
{
$child_count++;
if(RecurseXML($value,$parent.".".$key) == 0) // no childern, aka "leaf node"
{
print($parent . "." . (string)$key . " = " . (string)$value . "<BR>\n");
}
}
return $child_count;
}
?>
The output....
.name = Bill
.wife.name = Vi
.son.name = Bill
.daughter.name = Jeri
.daughter.husband.name = Mark
.daughter.son.name = Greg
.daughter.son.name = Tim
.daughter.son.name = Mark
.daughter.son.name = Josh
.daughter.son.wife.name = Kristine
.daughter.son.son.name = Blake
.daughter.son.daughter.name = Liah
taylorbarstow at that google mail thingy
21-Apr-2006 04:38
Sometimes you actually want an array, not a pseudo array. This is especially true when you aren't dealing with attributes (i.e., you just want the array of child nodes).
Do like this:
<?php
$children = $sxml->xpath('child::node()');
?>
The reason you might want this is to be able to use array functions like array_shift, array_pop, etc. This is especially true when you are writing recursive functions. Simplexml works really well in iterative programming, but if you try to implement recursion it gets ugly.
Sebastian
27-Oct-2005 12:45
Just a quick addition:
If you need to access a child node which contains a dash, you need to encapsulate it with {""}.
For example:
<?php
foreach ($domain->domain-listing as $product) {
}
?>
The example above doesn't work because of the dash. But instead you need to use:
<?php
foreach ($domain->{"domain-listing"} as $product) {
}
?>
At least for me the second example works perfectly fine.
no-one
01-Jun-2005 03:05
For anyone who hasn't read Sterling Hughe's article (http://www.zend.com/php5/articles/php5-simplexml.php):
<?php
$xml_document =<<<EOT
<?xml version="1.0"?>
<root xmlns:foo="http://example.com">
<foo:bar>baz</foo:bar>
</root>
EOT;
$xml_document = simplexml_load_xml($xml_document);
$foo_ns_bar = $xml_document->children('http://example.com');
echo $foo_ns_bar->bar[0]; // prints 'baz'
?>
Andrew Rose (rose dot andrew at gmail dot com)
16-Mar-2005 01:48
The example below shows the basic use of depth-first recursion to span the xml tree.
This is coded for the command line, and it prints out the original sentance above and then the copy cat sentence it creates itself for comparison, which as you will see; this example is slightly off from, I'll leave it upto you to resolve this issue.
All in all I personaly think xml and recursion go hand in hand, so if you don't understand recursion but know xml and want to use php to manipulate xml you will need to learn about recursion at some point.
<?php
$xml = simplexml_load_string(
'<person>
<child role="son">
<child role="daughter"/>
</child>
<child role="daughter">
<child role="son">
<child role="son"/>
</child>
</child>
</person>');
function recurse($child)
{
foreach($child->children() as $children) {
echo ' who begot a '.$children['role'];
recurse($children);
}
return;
}
foreach($xml->children() as $children) {
echo 'The person begot a '.$children['role'];
recurse($children, 0);
echo '; ';
}
echo "\n";
echo 'The person begot a son who begot a daughter; The person begot a daughter who begot a son; and that son begot a son'."\n";
?>
zyxwvu at users dot sourceforge dot net
15-Feb-2004 07:32
File:
<category>
<item>text</item>
<bold>text</bold>
<item>text</item>
<item>text</item>
<mark>text</mark>
<bold>text</bold>
</category>
If you want to get also names of the tags, you can use this loop layout:
<?php
foreach($category -> children() as $name => $node){
echo $name.'<br/>';
}
?>