Php array to xml recursion implementation, php array xml Recursion

Php array to xml recursion implementation, php array xml Recursion

The PHP winning array to xml is a common requirement, and there are also many implementation methods. Baidu has looked at various implementation methods, but it basically relies on some components. I wrote a String concatenation method that supports multi-dimensional arrays. It is for reference only. If you have any shortcomings, please kindly advise me!

/*** Convert the array to xml * @ param array $ data the array to be converted * @ param bool $ whether the root node is required * @ return string xml string * @ author Dragondean * @ url http://www.cnblogs.com/dragondean#/function arr2xml ($ data, $ root = true) {$ str = ""; if ($ root) $ str. = "<xml>"; foreach ($ data as $ key => $ val) {if (is_array ($ val) {$ child = arr2xml ($ val, false ); $ str. = "<$ key> $ child </$ key>";} else {$ str. = "<$ key> <! [CDATA [$ val]> </$ key> ";}} if ($ root) $ str. =" </xml> "; return $ str ;}

 

The above is the implementation method. The first parameter is the array to be converted, and the second optional parameter is set to whether to add the <xml> root node, which is required by default.

Test code:

$arr=array('a'=>'aaa','b'=>array('c'=>'1234' , 'd' => "asdfasdf"));echo arr2xml($arr);

The result after code execution is:

<xml><a><![CDATA[aaa]]></a><b><c><![CDATA[1234]]></c><d><![CDATA[asdfasdf]]></d></b></xml>

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Update:

During use, it is found that the following format array conversion may cause problems:

array(    'item' => array(        array(            'title' => 'qwe',            'description' => 'rtrt',            'picurl' => 'sdfsd',            'url' => 'ghjghj'        ),        array(            'title' => 'jyutyu',            'description' => 'werwe',            'picurl' => 'xcvxv',            'url' => 'ghjgh'        )    ));

 

The converted result is:

<xml>    <item>        <0>            <title>                <![CDATA[qwe]]>            </title>            <description>                <![CDATA[rtrt]]>            </description>            <picurl>                <![CDATA[sdfsd]]>            </picurl>            <url>                <![CDATA[ghjghj]]>            </url>        </0>        <1>            <title>                <![CDATA[jyutyu]]>            </title>            <description>                <![CDATA[werwe]]>            </description>            <picurl>                <![CDATA[xcvxv]]>            </picurl>            <url>                <![CDATA[ghjgh]]>            </url>        </1>    </item></xml>

Generally, we do not want the transformed xml <0> <1> layer nodes. However, in php, there cannot be multiple items with the same name. What should we do?

I figured out a way to subscripts to items, such as item [0] and item [1]. In the conversion process, The subscripts in the [] form are removed to implement multiple item nodes side by side.

The function is modified as follows:

Function arr2xml ($ data, $ root = true) {$ str = ""; if ($ root) $ str. = "<xml>"; foreach ($ data as $ key => $ val) {// remove the subscript [] $ key = preg_replace ('/\ [\ d * \]/', '', $ key) in the key ); if (is_array ($ val) {$ child = arr2xml ($ val, false); $ str. = "<$ key> $ child </$ key>";} else {$ str. = "<$ key> <! [CDATA [$ val]> </$ key> ";}} if ($ root) $ str. =" </xml> "; return $ str ;}

The array to be converted above also needs to be changed:

$arr1 =array(    'item[0]' => array(            'title' => 'qwe',            'description' => 'rtrt',            'picurl' => 'sdfsd',            'url' => 'ghjghj'        ),    'item[1]' => array(            'title' => 'jyutyu',            'description' => 'werwe',            'picurl' => 'xcvxv',            'url' => 'ghjgh'        ));

The converted xml is as follows:

<xml>    <item>        <title>            <![CDATA[qwe]]>        </title>        <description>            <![CDATA[rtrt]]>        </description>        <picurl>            <![CDATA[sdfsd]]>        </picurl>        <url>            <![CDATA[ghjghj]]>        </url>    </item>    <item>        <title>            <![CDATA[jyutyu]]>        </title>        <description>            <![CDATA[werwe]]>        </description>        <picurl>            <![CDATA[xcvxv]]>        </picurl>        <url>            <![CDATA[ghjgh]]>        </url>    </item></xml>