Conversion Between XML arrays and objects and between xml Arrays

Conversion Between XML arrays and objects and between xml Arrays

Why do we need to switch between them? Because of the troubles, programmers are disgusted with the troubles.

1 array to xml

<? Php/* idea of converting one-dimensional array to xml: add each unit in the loop array to the xml document node * // * $ arr = array ('name' => 'twent ', 'age' => 29); function arr2xml ($ arr) {$ simxml = new simpleXMLElement ('<? Xml version = "1.0" encoding = "UTF-8"?> <Root> </root> '); // how to add a subnode to the simpleXMLElement object? Foreach ($ arr as $ k =>$ v) {$ simxml-> addChild ($ k, $ v);} return $ simxml-> saveXML ();} */$ arr = array ('name' => 'ding 3', 'age' => 29, 'job' => array ('title' => 'manager ', 'salary '=> 8888, 'team' => array ('red', 'xiaoming', 'hua '); function arr2xml ($ arr, $ node = null) {if ($ node = null) {$ simxml = new simpleXMLElement ('<? Xml version = "1.0" encoding = "UTF-8"?> <Root> </root> ');} How does the else {$ simxml = $ node;} // Add a subnode to the simpleXMLElement object? Foreach ($ arr as $ k =>$ v) {if (is_array ($ v) {// $ simxml-> addChild ($ k); arr2xml ($ v, $ simxml-> addChild ($ k);} else if (is_numeric ($ k) {// The tag cannot start with a number, similar to the variable $ simxml-> addChild ('item '. $ k, $ v);} else {$ simxml-> addChild ($ k, $ v);} return $ simxml-> saveXML ();} header ('content-type: text/xml'); echo arr2xml ($ arr );

Running result:

2 xml to array

<? Php/*** // use-> and [] for access. inconvenient // next we will practice converting xml to array echo $ simxml-> book [0]-> title; converting xml files into Arrays Using simplexml objects, * ** // * The object uses the property name-> attribute value, and the storage variable array uses the key name-> key value to store the variable. The difference is not big. In js, objects can be operated as associated arrays. */$ simxml = simplexml_load_file ('. /book. xml ');/* print_r ($ simxml); echo'