数组转xml用到不多用数组转json比较多了，但今天有一个功能就是必须要把数组转换成xml了，下面小编人网上找到了一段关于php 数组转xml的代码测试了都可以使用，下面整理分享给各位。

例子1

下面这个可以支持多维数组

测试代码：test.php

include './ArrayToXML.php';

header('Content-Type:   text/xml');

$data=array("name"=>"zhangsan","sex"=>"0","address"=>array("sheng"=>"chongqing","shi"=>"nanchuan","zhen"=>"daguan"));

echo ArrayToXML::toXml($data);

处理代码：ArrayToXML.php

class ArrayToXML

{

/**

* The main function for converting to an XML document.

* Pass in a multi dimensional array and this recrusively loops through and builds up an XML document.

*

* @param array $data

* @param string $rootNodeName - what you want the root node to be - defaultsto data.

* @param SimpleXMLElement $xml - should only be used recursively

* @return string XML

*/

public static function toXml($data, $rootNodeName = 'data', $xml=null)

{

// turn off compatibility mode as simple xml throws a wobbly if you don't.

if (ini_get('zend.ze1_compatibility_mode') == 1)

{

ini_set ('zend.ze1_compatibility_mode', 0);

}

if ($xml == null)

{

$xml = simplexml_load_string("<?xml version='1.0' encoding='utf-8'?>");

}

// loop through the data passed in.

foreach($data as $key => $value)

{

// no numeric keys in our xml please!

if (is_numeric($key))

{

// make string key...

$key = "unknownNode_". (string) $key;

}

// replace anything not alpha numeric

$key = preg_replace('/[^a-z]/i', '', $key);

// if there is another array found recrusively call this function

if (is_array($value))

{

$node = $xml->addChild($key);

// recrusive call.

ArrayToXML::toXml($value, $rootNodeName, $node);

}

else

{

// add single node.

$value = htmlentities($value);

$xml->addChild($key,$value);

}

}

// pass back as string. or simple xml object if you want!

return $xml->asXML();

}

}

ArrayToXML.php来源于网络，本人不做任何解释

例子2

// Xml 转 数组, 包括根键，忽略空元素和属性，尚有重大错误

function xml_to_array( $xml )

{

$reg = "/]*?>([\\x00-\\xFF]*?)/";

if(preg_match_all($reg, $xml, $matches))

{

$count = count($matches[0]);

$arr = array();

for($i = 0; $i < $count; $i )

{

$key= $matches[1][$i];

$val = xml_to_array( $matches[2][$i] );  // 递归

if(array_key_exists($key, $arr))

{

if(is_array($arr[$key]))

{

if(!array_key_exists(0,$arr[$key]))

{

$arr[$key] = array($arr[$key]);

}

}else{

$arr[$key] = array($arr[$key]);

}

$arr[$key][] = $val;

}else{

$arr[$key] = $val;

}

}

return $arr;

}else{

return $xml;

}

}

// Xml 转 数组, 不包括根键

function xmltoarray( $xml )

{

$arr = xml_to_array($xml);

$key = array_keys($arr);

return $arr[$key[0]];

}

代码

// 类似 XPATH 的数组选择器

function xml_array_select( $arr, $arrpath )

{

$arrpath = trim( $arrpath, '/' );

if(!$arrpath) return $arr;

$self = 'xml_array_select';

$pos = strpos( $arrpath, '/' );

$pos = $pos ? $pos : strlen($arrpath);

$curpath = substr($arrpath, 0, $pos);

$next = substr($arrpath, $pos);

if(preg_match("/\\[(\\d )\\]$/",$curpath,$predicate))

{

$curpath = substr($curpath, 0, strpos($curpath,"[{$predicate[1]}]"));

$result = $arr[$curpath][$predicate[1]];

}else $result = $arr[$curpath];

if( is_array($arr) && !array_key_exists($curpath, $arr) )

{

die( 'key is not exists:' . $curpath );

}

return $self($result, $next);

}

// 如果输入的数组是全数字键，则将元素值依次传输到 $callback, 否则将自身传输给$callback

function xml_array_each( $arr, $callback )

{

if(func_num_args()<2) die('parameters error');

if(!is_array($arr)) die('parameter 1 shuld be an array!');

if(!is_callable($callback)) die('parameter 2 shuld be an function!');

$keys = array_keys($arr);

$isok = true;

foreach( $keys as $key ) {if(!is_int($key)) {$isok = false; break;}}

if($isok)

foreach( $arr as $val ) $result[] = $callback($val);

else

$result[] = $callback( $arr );

return $result;

}

/**

* 最简单的XML转数组

* @param string $xmlstring XML字符串

* @return array XML数组

*/

function simplest_xml_to_array($xmlstring) {

return json_decode(json_encode((array) simplexml_load_string($xmlstring)), true);

}