如何将数组转换为PHP中的SimpleXML对象?
当前回答
这里有一个函数帮我解决了这个问题:
就像这样叫它
echo arrayToXml("response",$arrayIWantToConvert);
function arrayToXml($thisNodeName,$input){
if(is_numeric($thisNodeName))
throw new Exception("cannot parse into xml. remainder :".print_r($input,true));
if(!(is_array($input) || is_object($input))){
return "<$thisNodeName>$input</$thisNodeName>";
}
else{
$newNode="<$thisNodeName>";
foreach($input as $key=>$value){
if(is_numeric($key))
$key=substr($thisNodeName,0,strlen($thisNodeName)-1);
$newNode.=arrayToXml3($key,$value);
}
$newNode.="</$thisNodeName>";
return $newNode;
}
}
其他回答
function array2xml(array $data, SimpleXMLElement $object = null, $oldNodeName = 'item')
{
if (is_null($object)) $object = new SimpleXMLElement('<root/>');
$isNumbered = true;
$idx = 0;
foreach ($data as $key => $x)
if (is_string($key) || ($idx++ != $key + 0))
$isNumbered = false;
foreach ($data as $key => $value)
{
$attribute = preg_match('/^[0-9]/', $key . '') ? $key : null;
$key = (is_string($key) && !preg_match('/^[0-9]/', $key . '')) ? $key : preg_replace('/s$/', '', $oldNodeName);
if (is_array($value))
{
$new_object = $object->addChild($key);
if (!$isNumbered && !is_null($attribute)) $new_object->addAttribute('id', $attribute);
array2xml($value, $new_object, $key);
}
else
{
if (is_bool($value)) $value = $value ? 'true' : 'false';
$node = $object->addChild($key, htmlspecialchars($value));
if (!$isNumbered && !is_null($attribute) && !isset($node->attributes()->id))
$node->addAttribute('id', $attribute);
}
}
return $object;
}
例如,该函数返回一个<obj>…</obj><obj>…</obj>数值索引的XML标记。
输入:
array(
'people' => array(
'dog',
'cat',
'life' => array(
'gum',
'shoe',
),
'fish',
),
array('yeah'),
)
输出:
<root>
<people>
<people>dog</people>
<people>cat</people>
<life>
<life>gum</life>
<life>shoe</life>
</life>
<people>fish</people>
<people>
<people>yeah</people>
</people>
</people>
</root>
这应该能满足所有的共同需求。也许你可以把第三行改成:
$key = is_string($key) ? $key : $oldNodeName . '_' . $key;
或者如果你正在处理以s结尾的复数:
$key = is_string($key) ? $key : preg_replace('/s$/', '', $oldNodeName);
<?php function array_to_xml(array $arr, SimpleXMLElement $xml) { foreach ($arr as $k => $v) { is_array($v) ? array_to_xml($v, $xml->addChild($k)) : $xml->addChild($k, $v); } return $xml; } $test_array = array ( 'bla' => 'blub', 'foo' => 'bar', 'another_array' => array ( 'stack' => 'overflow', ), ); echo array_to_xml($test_array, new SimpleXMLElement('<root/>'))->asXML();
如果冗长的xml不成问题,可以使用xmlrpc_encode从数组创建xml。 www.php.net/xmlrpc_encode
注意,如果使用关联键和/或数字键,创建的XML会有所不同
<?php
// /params/param/value/struct/member
// there is a tag "member" for each element
// "member" contains a tag "name". its value is the associative key
$xml1 = xmlrpc_encode(array('a'=>'b','c'=>'d'));
$simplexml1 = simplexml_load_string($xml1);
print_r($xml1);
print_r($simplexml1);
// /params/param/value/array/data
// there is a tag "data" for each element
// "data" doesn't contain the tag "name"
$xml2 = xmlrpc_encode(array('a','b'));
$simplexml2 = simplexml_load_string($xml2);
print_r($xml2);
print_r($simplexml2);
?>
您可以直接在代码中使用以下函数,
function artoxml($arr, $i=1,$flag=false){
$sp = "";
for($j=0;$j<=$i;$j++){
$sp.=" ";
}
foreach($arr as $key=>$val){
echo "$sp<".$key.">";
if($i==1) echo "\n";
if(is_array($val)){
if(!$flag){echo"\n";}
artoxml($val,$i+5);
echo "$sp</".$key.">\n";
}else{
echo "$val"."</".$key.">\n";
}
}
}
调用第一个参数作为数组的函数,第二个参数必须为1,这将增加完美缩进,第三个参数必须为真。
例如,如果要转换的数组变量是$array1,那么, 调用时,调用函数应该封装在<pre>标记中。
Artoxml($array 1,1,true);
请在执行文件后查看页面源代码,因为<和>符号将不会显示在html页面中。
下面是php 5.2代码,将数组的任何深度转换为xml文档:
Array
(
['total_stud']=> 500
[0] => Array
(
[student] => Array
(
[id] => 1
[name] => abc
[address] => Array
(
[city]=>Pune
[zip]=>411006
)
)
)
[1] => Array
(
[student] => Array
(
[id] => 2
[name] => xyz
[address] => Array
(
[city]=>Mumbai
[zip]=>400906
)
)
)
)
生成的XML如下所示:
<?xml version="1.0"?>
<student_info>
<total_stud>500</total_stud>
<student>
<id>1</id>
<name>abc</name>
<address>
<city>Pune</city>
<zip>411006</zip>
</address>
</student>
<student>
<id>1</id>
<name>abc</name>
<address>
<city>Mumbai</city>
<zip>400906</zip>
</address>
</student>
</student_info>
PHP代码片段
<?php
// function defination to convert array to xml
function array_to_xml( $data, &$xml_data ) {
foreach( $data as $key => $value ) {
if( is_array($value) ) {
if( is_numeric($key) ){
$key = 'item'.$key; //dealing with <0/>..<n/> issues
}
$subnode = $xml_data->addChild($key);
array_to_xml($value, $subnode);
} else {
$xml_data->addChild("$key",htmlspecialchars("$value"));
}
}
}
// initializing or creating array
$data = array('total_stud' => 500);
// creating object of SimpleXMLElement
$xml_data = new SimpleXMLElement('<?xml version="1.0"?><data></data>');
// function call to convert array to xml
array_to_xml($data,$xml_data);
//saving generated xml file;
$result = $xml_data->asXML('/file/path/name.xml');
?>
本代码段中使用的SimpleXMLElement::asXML文档