How to convert array to SimpleXML

Question

How can I convert an array to a SimpleXML object in PHP

User · Answer

If you work in magento and you have this type of associative array

$test_array = array (
    '0' => array (
            'category_id' => '582',
            'name' => 'Surat',
            'parent_id' => '565',
            'child_id' => '567',
            'active' => '1',
            'level' => '6',
            'position' => '17'
    ),

    '1' => array (
            'category_id' => '567', 
            'name' => 'test',
            'parent_id' => '0',
            'child_id' => '576',
            'active' => '0',
            'level' => '0',
            'position' => '18'
    ),
);

then this is best to convert associative array to xml format.Use this code in controller file.

$this->loadLayout(false);
//header ("content-type: text/xml");
$this->getResponse()->setHeader('Content-Type','text/xml');
$this->renderLayout();

$clArr2xml = new arr2xml($test_array, 'utf-8', 'listdata');
$output = $clArr2xml->get_xml();
print $output; 

class arr2xml
{
var $array = array();
var $xml = '';
var $root_name = '';
var $charset = '';

public function __construct($array, $charset = 'utf-8', $root_name = 'root')
{
    header ("content-type: text/xml");
    $this->array = $array;
    $this->root_name = $root_name;
    $this->charset = $charset;

    if (is_array($array) && count($array) > 0) {
        $this->struct_xml($array);

    } else {
        $this->xml .= "no data";
    }
}

public function struct_xml($array)
{
    foreach ($array as $k => $v) {
        if (is_array($v)) {
            $tag = ereg_replace('^[0-9]{1,}', 'item', $k); // replace numeric key in array to 'data'
            $this->xml .= "<$tag>";
            $this->struct_xml($v);
            $this->xml .= "</$tag>";
        } else {
            $tag = ereg_replace('^[0-9]{1,}', 'item', $k); // replace numeric key in array to 'data'
            $this->xml .= "<$tag><![CDATA[$v]]></$tag>";
        }
    }
}

public function get_xml()
{

    $header = "<?xml version=\"1.0\" encoding=\"" . $this->charset . "\"?><" . $this->root_name . ">";
    $footer = "</" . $this->root_name . ">";

    return $header . $this->xml . $footer;
}
}

I hope it helps to all.

User · Answer

You can use Mustache Template Engine and make a Template like      RECEIVER    lt RECEIVER gt       lt COMPANY gt    COMPANY    lt  COMPANY gt       lt CONTACT gt    CONTACT    lt  CONTACT gt       lt ADDRESS gt    ADDRESS    lt  ADDRESS gt       lt ZIP gt   ZIP   lt  ZIP gt       lt CITY gt    CITY    lt  CITY gt   lt  RECEIVER gt     RECEIVER      DOC    lt DOC gt       lt TEXT gt    TEXT    lt  TEXT gt       lt NUMBER gt    NUMBER    lt  NUMBER gt   lt  DOC gt     DOC     Use it like this in PHP   require once    DIR         controls Mustache Autoloader php     Mustache Autoloader  register     oMustache   new Mustache Engine     sTemplate   implode      file    DIR      xml tpl       return    oMustache- gt render  sTemplate   res   echo  return

User · Answer

Here is php 5 2 code which will convert array of any depth to xml document   Array         total stud    gt  500      0    gt  Array                        student    gt  Array                                        id    gt  1                      name    gt  abc                      address    gt  Array                                                        city   gt Pune                              zip   gt 411006                                                                                   1    gt  Array                        student    gt  Array                                        id    gt  2                      name    gt  xyz                      address    gt  Array                                                        city   gt Mumbai                              zip   gt 400906                                                               generated XML would be as     lt  xml version  1 0   gt   lt student info gt       lt total stud gt 500 lt  total stud gt       lt student gt           lt id gt 1 lt  id gt           lt name gt abc lt  name gt           lt address gt               lt city gt Pune lt  city gt               lt zip gt 411006 lt  zip gt           lt  address gt       lt  student gt       lt student gt           lt id gt 1 lt  id gt           lt name gt abc lt  name gt           lt address gt               lt city gt Mumbai lt  city gt               lt zip gt 400906 lt  zip gt           lt  address gt       lt  student gt   lt  student info gt    PHP snippet    lt  php    function defination to convert array to xml function array to xml   data   amp  xml data         foreach   data as  key   gt   value             if  is array  value                  if  is numeric  key                      key    item   key    dealing with  lt 0  gt    lt n  gt  issues                            subnode    xml data- gt addChild  key               array to xml  value   subnode             else                xml data- gt addChild   key  htmlspecialchars   value                            initializing or creating array  data   array  total stud    gt  500       creating object of SimpleXMLElement  xml data   new SimpleXMLElement   lt  xml version  1 0   gt  lt data gt  lt  data gt         function call to convert array to xml array to xml  data  xml data      saving generated xml file    result    xml data- gt asXML   file path name xml       gt    Documentation on SimpleXMLElement  asXML used in this snippet

User · Answer

Here s a function that did the trick for me   Just call it with something like   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   lt  thisNodeName gt  input lt   thisNodeName gt                      else               newNode   lt  thisNodeName gt                foreach  input as  key  gt  value                   if is numeric  key                        key substr  thisNodeName 0 strlen  thisNodeName -1                    newNode  arrayToXml3  key  value                              newNode    lt   thisNodeName gt                return  newNode

User · Answer

other solution    marray array         options   array                   encoding    gt   UTF-8                    output type    gt   xml                     version    gt   simple                    escaping    gt  array  non-ascii  on-print  markup                       xmlres   xmlrpc encode request  root    marray   options   print  xmlres

User · Answer

So anyway    I took onokazu s code  thanks   and added the ability to have repeated tags in XML  it also supports attributes  hope someone finds it useful     lt  php  function array to xml array  arr  SimpleXMLElement  xml            foreach   arr as  k   gt   v                  attrArr   array                 kArray   explode      k                tag   array shift  kArray                if  count  kArray   gt  0                    foreach  kArray as  attrValue                         attrArr     explode      attrValue                                                                   if  is array  v                     if  is numeric  k                         array to xml  v   xml                     else                        child    xml- gt addChild  tag                       if  isset  attrArr                             foreach  attrArr as  attrArrV                                 child- gt addAttribute  attrArrV 0   attrArrV 1                                                                                           array to xml  v   child                                   else                    child    xml- gt addChild  tag   v                   if  isset  attrArr                         foreach  attrArr as  attrArrV                             child- gt addAttribute  attrArrV 0   attrArrV 1                                                                                            return  xml                  test array   array              bla    gt   blub              foo    gt   bar              another array    gt  array               array  stack    gt   overflow                array  stack    gt   overflow                array  stack    gt   overflow                            foo attribute1 value1 attribute2 value2    gt   bar                          xml   array to xml  test array  new SimpleXMLElement   lt root  gt    - gt asXML             echo   xml n            dom   new DOMDocument           dom- gt preserveWhiteSpace   FALSE           dom- gt loadXML  xml            dom- gt formatOutput   TRUE          echo  dom- gt saveXml          gt

User · Answer

function array2xml array  data  SimpleXMLElement  object   null   oldNodeName    item         if  is null  object    object   new SimpleXMLElement   lt root  gt          isNumbered   true       idx   0      foreach   data as  key   gt   x          if  is string  key       idx       key   0                isNumbered   false      foreach   data as  key   gt   value                    attribute   preg match     0-9      key          key   null           key    is string  key   amp  amp   preg match     0-9      key           key   preg replace   s          oldNodeName           if  is array  value                          new object    object- gt addChild  key               if    isNumbered  amp  amp   is null  attribute    new object- gt addAttribute  id    attribute               array2xml  value   new object   key                     else                       if  is bool  value    value    value    true     false                node    object- gt addChild  key  htmlspecialchars  value                if    isNumbered  amp  amp   is null  attribute   amp  amp   isset  node- gt attributes  - gt id                    node- gt addAttribute  id    attribute                       return  object      This function returns for example a list of  lt obj gt     lt  obj gt  lt obj gt     lt  obj gt  XML tags for numeric indexes   Input       array       people    gt  array           dog            cat            life    gt  array               gum                shoe                       fish              array  yeah        Output    lt root gt       lt people gt           lt people gt dog lt  people gt           lt people gt cat lt  people gt           lt life gt               lt life gt gum lt  life gt               lt life gt shoe lt  life gt           lt  life gt           lt people gt fish lt  people gt           lt people gt               lt people gt yeah lt  people gt           lt  people gt       lt  people gt   lt  root gt    This should satisfy all common needs  Maybe you may change the 3rd line to    key   is string  key     key    oldNodeName          key    or if you are working with plurals ending with s    key   is string  key     key   preg replace   s          oldNodeName

User · Answer

The answers provided here only convert array to XML with nodes  you are not able to set attributes  I have written a php function that allows you to convert an array to php and also set attributes for particular nodes in the xml  The downside here is you have to construct an array in a particular way with few conventions  only if you want to use attributes   The following example will allow you to set attributes in XML too    The source can be found here  https   github com digitickets lalit blob master src Array2XML php   lt  php      books   array        attributes    gt  array           type    gt   fiction              book    gt  array          array                attributes    gt  array                   author    gt   George Orwell                              title    gt   1984                     array                attributes    gt  array                   author    gt   Isaac Asimov                              title    gt   Foundation                price    gt    15 61                     array                attributes    gt  array                   author    gt   Robert A Heinlein                              title    gt   Stranger in a Strange Land                price    gt  array                    attributes    gt  array                       discount    gt   10                                        value    gt    18 00                                      creates   lt books type  fiction  gt     lt book author  George Orwell  gt       lt title gt 1984 lt  title gt     lt  book gt     lt book author  Isaac Asimov  gt       lt title gt Foundation lt  title gt       lt price gt  15 61 lt  price gt     lt  book gt     lt book author  Robert A Heinlein  gt       lt title gt Stranger in a Strange Land lt  title gt       lt price discount  10   gt  18 00 lt  price gt     lt  book gt   lt  books gt       gt

User · Answer

I found this solution similar to the original problem   lt  php   test array   array      bla    gt   blub      foo    gt   bar      another array    gt  array        stack    gt   overflow            class NoSimpleXMLElement extends SimpleXMLElement    public function addChild  name  value      parent  addChild  value  name         xml   new NoSimpleXMLElement   lt root  gt     array walk recursive  test array  array   xml   addChild     print  xml- gt asXML

User · Answer

Another improvement         Converts an array to XML      param array  array    param SimpleXMLElement  xml    param string  child name      return SimpleXMLElement  xml    public function arrayToXML  array  SimpleXMLElement  xml   child name        foreach   array as  k   gt   v            if is array  v                  is int  k      this- gt arrayToXML  v   xml- gt addChild  child name    v     this- gt arrayToXML  v   xml- gt addChild strtolower  k     child name             else                is int  k      xml- gt addChild  child name   v     xml- gt addChild strtolower  k    v                        return  xml- gt asXML        Usage    this- gt arrayToXML  array  new SimpleXMLElement   lt root  gt      child name to replace numeric integers

User · Answer

You can do this through DOM also  Please see below code    lt  php   el   array     command   array      dom   new DOMDocument  1 0    utf-8     dom- gt formatOutput   true    xml array          root   gt        Good guy    gt             name    gt                  cdata    gt   Luke Skywalker                      weapon    gt   Lightsaber              Bad guy    gt             name    gt   Sauron            weapon    gt   Evil Eye                      convert xml  xml array    if  empty  el          dom- gt appendChild end  el       echo  dom- gt saveXML       gt    lt  php   function convert xml  Xml        global  el   dom           foreach  Xml as  id  gt  val                        if is numeric  id                                  id    Item    id                               id   str replace       -   strtolower  id                 if is array  val                                  ele    dom- gt createElement  id                   array push  el   ele                   convert xml  val                             else                                ele    dom- gt createElement  id   val                    if  empty  el                                          com   end  el - gt appendChild  ele                                     else                                        dom- gt appendChild  ele                                                       if sizeof  el   gt  1                         child   end  el                com   prev  el - gt appendChild  child               array pop  el                  gt

User · Answer

lt  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   lt root  gt    - asXML

User · Answer

I wanted a code that will take all the elements inside an array and treat them as attributes  and all arrays as sub elements    So for something like   array    row1    gt  array   head element    gt array  prop1   gt  some value   prop2   gt array  empty       row2   gt  array   stack   gt  overflow   overflow   gt  overflow        I would get something like this   lt  xml version  1 0  encoding  utf-8   gt   lt someRoot gt     lt row1 gt       lt head element prop1  some value  gt         lt prop2 0  empty   gt       lt  head element gt     lt  row1 gt     lt row2 stack  overflow  overflow  stack   gt    lt  someRoot gt    To achive this the code is below  but be very careful  it is recursive and may actually cause a stackoverflow     function addElements  amp  xml  array     params array    foreach  array as  k  gt  v        if is array  v           addElements  xml- gt addChild  k    v       else  xml- gt addAttribute  k  v        function xml encode  array    if  is array  array       trigger error  Type missmatch xml encode  E USER ERROR    xml new SimpleXMLElement   lt  xml version   1 0   encoding   utf-8    gt  lt   key  array     gt     addElements  xml  array key  array     return  xml- gt asXML         You may want to add checks for length of the array so that some element get set inside the data part and not as an attribute

User · Answer

function toXML  data   obj   false   dom         is first level   false      if  obj     false             dom   new DomDocument  1 0             obj    dom           is first level   true             if is array  data             foreach  data as  key   gt   item                 this- gt toXML  item   obj- gt appendChild  dom- gt createElement  key     dom                  else            obj- gt appendChild  dom- gt createTextNode  data               if  is first level             obj- gt formatOutput   true          return  obj- gt saveXML              return  obj

User · Answer

IF the array is associative and keyed correctly  it would probably be easier to turn it into xml first  Something like     function array2xml   array item         xml           foreach  array item as  element   gt   value                if  is array  value                          xml      lt  element gt   array2xml  value    lt   element gt                      elseif  value                               xml      lt  element   gt                      else                        xml      lt  element gt   htmlentities  value    lt   element gt                        return  xml      simple xml   simplexml load string array2xml  assoc array      The other route would be to create your basic xml first  like    simple xml   simplexml load string   lt array gt  lt  array gt       and then for each part of your array  use something similar to my text creating loop and instead use the simplexml functions  addChild  for each node of the array   I ll try that out later and update this post with both versions

User · Answer

Whole XML structure is defined in  data Array   function array2Xml  data   xml   null        if  is null  xml              xml   simplexml load string   lt     key  data       gt              data   current  data            return   true            if  is array  data             foreach   data as  name   gt   value                array2Xml  value  is numeric  name     xml    xml- gt addChild  name                    else            xml- gt  0     data            if   empty  return             return  xml- gt asXML

User · Answer

You could use the XMLParser that I have been working on    xml   XMLParser  encode array       bla    gt   blub        foo    gt   bar        another array    gt  array            stack    gt   overflow                  xml instanceof SimpleXMLElement echo  xml- gt asXML      Would result in    lt  xml version  1 0   gt   lt root gt       lt bla gt blub lt  bla gt       lt foo gt bar lt  foo gt       lt another array gt           lt stack gt overflow lt  stack gt       lt  another array gt   lt  root gt

User · Answer

From PHP 5 4  function array2xml  data   root   null        xml   new SimpleXMLElement  root     lt      root      gt       lt root  gt         array walk recursive  data  function  value   key use  xml            xml- gt addChild  key   value               return  xml- gt asXML

User · Answer

Most of the above answers are correct  However  I came up with this answer which solves the array walk recursive compatibility issue and also the numerical keys problem  It also passed all the tests I made    function arrayToXML Array  array  SimpleXMLElement  amp  xml         foreach  array as  key   gt   value                None array         if   is array  value                  is numeric  key      xml- gt addChild  item key    value     xml- gt addChild  key   value               continue                           Array          xmlChild    is numeric  key      xml- gt addChild  item key      xml- gt addChild  key           arrayToXML  value   xmlChild                I have also added a test class for this which you may find useful   class ArrayToXmlTest extends PHPUnit Framework TestCase        public function setUp          public function tearDown           public function testFuncExists              this- gt assertTrue function exists  arrayToXML                public function testFuncReturnsXml              array   array               name    gt   ardi                last name    gt   eshghi                age    gt  31               tel    gt   0785323435                       xmlEl    new SimpleXMLElement   lt root  gt             arrayToXml  array   xmlEl             this- gt assertTrue  xmlEl instanceOf SimpleXMLElement              public function testAssocArrayToXml               array   array               name    gt   ardi                last name    gt   eshghi                age    gt  31               tel    gt   0785323435                       expectedXmlEl   new SimpleXMLElement   lt root  gt               expectedXmlEl- gt addChild  name    array  name              expectedXmlEl- gt addChild  last name    array  last name              expectedXmlEl- gt addChild  age    array  age              expectedXmlEl- gt addChild  tel    array  tel               actualXmlEl    new SimpleXMLElement   lt root  gt             arrayToXml  array   actualXmlEl             this- gt assertEquals  expectedXmlEl- gt asXML     actualXmlEl- gt asXML                public function testNoneAssocArrayToXml               array   array               ardi                eshghi               31               0785323435                         Expected xml value          expectedXmlEl   new SimpleXMLElement   lt root  gt              foreach  array as  key   gt   value               expectedXmlEl- gt addChild  item key    value               What the function produces                 actualXmlEl    new SimpleXMLElement   lt root  gt             arrayToXml  array   actualXmlEl             this- gt assertEquals  expectedXmlEl- gt asXML     actualXmlEl- gt asXML                public function testNestedMixArrayToXml               testArray   array               goal                nice                funny    gt  array                   name    gt   ardi                    tel      gt  07415517499                    vary                    fields    gt  array                       small                        email    gt   ardi eshghi gmail com                                       good old days                                notes    gt   come on lads lets enjoy this                cast    gt  array                   Tom Cruise                    Thomas Muller    gt  array  age    gt  24                                       Expected xml value          expectedXmlEl   new SimpleXMLElement   lt root  gt               expectedXmlEl- gt addChild  item0    testArray 0             expectedXmlEl- gt addChild  item1    testArray 1             childEl    expectedXmlEl- gt addChild  funny             childEl- gt addChild  name    testArray  funny    name              childEl- gt addChild  tel    testArray  funny    tel              childEl- gt addChild  item0    vary             childChildEl    childEl- gt addChild  fields             childChildEl- gt addChild  item0    small             childChildEl- gt addChild  email    testArray  funny    fields    email              childEl- gt addChild  item1    good old days             expectedXmlEl- gt addChild  notes    testArray  notes              childEl2    expectedXmlEl- gt addChild  cast             childEl2- gt addChild  item0    Tom Cruise             childChildEl2    childEl2- gt addChild  Thomas Muller             childChildEl2- gt addChild  age    testArray  cast    Thomas Muller    age                 What the function produces                 actualXmlEl   new SimpleXMLElement   lt root  gt             arrayToXml  testArray   actualXmlEl             this- gt assertEquals  expectedXmlEl- gt asXML     actualXmlEl- gt asXML

User · Answer

Structered array for XML convertion   data array   array    array        xml tag    gt   a         xml value    gt            tag attributes    gt  array        array           name    gt   a attr name            value    gt   a attr value                         subnode    gt  array        array            xml tag    gt   aa             xml value    gt   aa value             tag attributes    gt  array            array               name    gt   aa attr name                value    gt   aa attr value                                     subnode    gt  FALSE                         array        xml tag    gt   b         xml value    gt   b value         tag attributes    gt  FALSE        subnode    gt  FALSE         array        xml tag    gt   c         xml value    gt   c value         tag attributes    gt  array        array           name    gt   c attr name            value    gt   c attr value                  array           name    gt   c attr name 1            value    gt   c attr value 1                         subnode    gt  array        array            xml tag    gt   ca               xml value    gt   ca value             tag attributes    gt  FALSE            subnode    gt  array            array                xml tag    gt   caa                 xml value    gt   caa value                 tag attributes    gt  array                array                   name    gt   caa attr name                    value    gt   caa attr value                                                 subnode    gt  FALSE                                                       creating object of SimpleXMLElement  xml object   new SimpleXMLElement   lt  xml version   1 0    gt  lt student info gt  lt  student info gt          function call to convert array to xml array to xml  data array   xml object       saving generated xml file  xml object- gt asXML   tmp test xml            Converts an structured PHP array to XML         param Array  data array      The array data for converting into XML      param Object  xml object      The SimpleXMLElement Object        see https   gist github com drupalista-br 9230016         function array to xml  data array   amp  xml object      foreach  data array as  node         subnode    xml object- gt addChild  node   xml tag     node   xml value          if   node   tag attributes            foreach   node   tag attributes   as  tag attributes             subnode- gt addAttribute  tag attributes  name     tag attributes  value                         if   node   subnode            array to xml  node   subnode     subnode

User · Answer

a short one    lt  php   test array   array      bla    gt   blub      foo    gt   bar      another array    gt  array        stack    gt   overflow            xml   new SimpleXMLElement   lt root  gt     array walk recursive  test array  array   xml   addChild     print  xml- gt asXML      results in   lt  xml version  1 0   gt   lt root gt     lt blub gt bla lt  blub gt     lt bar gt foo lt  bar gt     lt overflow gt stack lt  overflow gt   lt  root gt    keys and values are swapped - you could fix that with array flip   before the array walk  array walk recursive requires PHP 5  you could use array walk instead  but you won t get  stack    gt   overflow  in the xml then

User · Answer

You can Use the following function in you code directly       function artoxml  arr   i 1  flag false        sp           for  j 0  j lt   i  j              sp                  foreach  arr as  key  gt  val           echo   sp amp lt    key   amp gt            if  i  1  echo   n           if is array  val                if   flag  echo  n                artoxml  val  i 5               echo   sp amp lt     key   amp gt  n            else                echo   val    amp lt     key   amp gt  n                         Call the function with first argument as your array and the second argument must be 1  this will be increased for perfect indentation  and third must be true   for example  if the array variable to be converted is  array1 then  calling would be  the calling function should be encapsulated with  lt pre gt  tag     artoxml  array1 1 true       Please see the page source after executing the file  because the  lt  and   symbols won t be displayed in a html page

User · Answer

Just a edit on a function above  when a key is numeric  add a prefix  key       initializing or creating array  student info   array your array data       creating object of SimpleXMLElement  xml student info   new SimpleXMLElement   lt  xml version   1 0    gt  lt student info gt  lt  student info gt         function call to convert array to xml array to xml  student  xml student info      saving generated xml file  xml student info- gt asXML  file path and name      function array to xml  student info   amp  xml student info         foreach  student info as  key   gt   value              if is array  value                 if  is numeric  key                     subnode    xml student info- gt addChild   key                    array to xml  value   subnode                             else                   subnode    xml student info- gt addChild  key  key                    array to xml  value   subnode                                       else                  if  is numeric  key                         xml student info- gt addChild   key    value                    else                       xml student info- gt addChild  key  key    value

User · Answer

I would have commented the second most voted answer  because it doesn t preserve structure and generates bad xml if there is numerically indexed inner arrays    I developed my own version based on it  because I needed simple converter between json and xml regardless of the structure of data   My version preserves numeric key information and structure of the original array  It creates elements for the numerically indexed values by wrapping values to value -named elements with key-attribute that contains numerical key   For example  array  test    gt  array 0   gt   some value   1   gt   other      converts to    lt test gt  lt value key  0  gt some value lt  value gt  lt value key  1  gt other lt  value gt  lt  test gt   My version of array to xml -function  hope it helps somebody     function array to xml  arr   amp  xml        foreach  arr as  key   gt   value            if is array  value                 if  is numeric  key                     subnode    xml- gt addChild   key                  else                    subnode    xml- gt addChild  value                     subnode- gt addAttribute  key    key                                                 array to xml  value   subnode                     else               if  is numeric  key                      xml- gt addChild  value    value - gt addAttribute  key    key                 else                    xml- gt addChild   key   value

User · Answer

the following deals with namespaces   In this case   you construct the wrapper to include the namespace definitions  and pass it into the function  use a colon to identify the namespace   Test Array    inarray        inarray  p apple      red    inarray  p pear      green    inarray  p peach      orange    inarray  p1 grocers       p1 local    gt   cheap    p1 imported    gt   expensive       xml   new SimpleXMLElement    lt p wrapper xmlns p  http   namespace org api  xmlns p1  http   namespace org api2   gt       array to xml  xml  inarray        function array to xml SimpleXMLElement  object  array  data            nslist    object- gt getDocNamespaces         foreach   data as  key   gt   value                    nspace   null           keyparts   explode      key 2           if   count  keyparts   2                nspace    nslist  keyparts 0             if  is array  value                             key   is numeric  key     item key     key               new object    object- gt addChild  key null  nspace               array to xml  new object   value                        else                           key   is numeric  key     item key     key               object- gt addChild  key   value  nspace

User · Answer

function array2xml  array   xml   false        if  xml     false             xml   new SimpleXMLElement   lt  xml version   1 0   encoding   utf-8    gt  lt   key  array     gt              array    array key  array               foreach  array as  key   gt   value           if is array  value                 this- gt array2xml  value   xml- gt addChild  key             else               xml- gt addChild  key   value                       return  xml- gt asXML

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Based on everything else here  handles numerical indices   attributes via prefixing with    and could inject xml to existing nodes   Code  function simple xmlify  arr  SimpleXMLElement  root   null   el    x            based on  among others http   stackoverflow com a 1397164 1037948      if  isset  root     null     root   root   new SimpleXMLElement   lt      el      gt          if is array  arr             foreach  arr as  k   gt   v                   special  attributes             if is string  k   amp  amp   k 0           root- gt addAttribute substr  k  1   v                  normal  append             else simple xmlify  v   root- gt addChild                         fix  invalid xml name  by prefixing numeric keys                     is numeric  k     n     k    k                                     else            root 0     arr             return  root     --   fn  simple xmlify   Usage     lazy declaration via  queryparam   args    hello 4 amp var   first amp var   second amp foo 1234 amp var 5  fifth amp var sub    sub1 amp var sub    sub2 amp var sub    sub3 amp var  name  the-name amp var  attr2  something-else amp var sub   x  4 356 amp var sub   y  -9 2252    q   array    parse str  val   q     xml   simple xmlify  q      dump  xml  or     result   get formatted xml  xml      see below   Result   lt  xml version  1 0   gt   lt x gt     lt hello gt 4 lt  hello gt     lt var name  the-name  attr2  something-else  gt       lt n0 gt first lt  n0 gt       lt n1 gt second lt  n1 gt       lt n5 gt fifth lt  n5 gt       lt sub x  4 356  y  -9 2252  gt         lt n0 gt sub1 lt  n0 gt         lt n1 gt sub2 lt  n1 gt         lt n2 gt sub3 lt  n2 gt       lt  sub gt     lt  var gt     lt foo gt 1234 lt  foo gt   lt  x gt    Bonus  Formatting XML  function get formatted xml SimpleXMLElement  xml   domver   null   preserveWhitespace   true   formatOutput   true           http   stackoverflow com questions 1191167 format-output-of-simplexml-asxml         create new wrapper  so we can get formatting options      dom   new DOMDocument  domver        dom- gt preserveWhiteSpace    preserveWhitespace       dom- gt formatOutput    formatOutput         now import the xml  converted to dom format              ix   dom import simplexml  xml        ix    dom- gt importNode  ix  true        dom- gt appendChild  ix               dom- gt loadXML  xml- gt asXML             print     return  dom- gt saveXML       --   fn  get formatted xml

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My answer  cobbling together others  answers  This should correct for the failure to compensate for numeric keys   function array to xml  array   root   element         xml   new SimpleXMLElement   lt   root   gt         foreach   array as  value             elem    xml- gt addChild  element           xml recurse child  elem   value             return  xml     function xml recurse child  amp  node   child        foreach   child as  key  gt  value            if is array  value                 foreach   value as  k   gt   v                    if is numeric  k                        xml recurse child  node  array  key   gt   v                                      else                        subnode    node- gt addChild  key                       xml recurse child  subnode   value                                                     else                node- gt addChild  key   value                          The array to xml   function presumes that the array is made up of numeric keys first  If your array had an initial element  you would drop the foreach   and  elem statements from the array to xml   function and just pass  xml instead

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I use a couple of functions that I wrote a while back to generate the xml to pass back and forth from PHP and jQuery etc     Neither use any additional frameworks just purely generates a string that can then be used with SimpleXML  or other framework      If it s useful to anyone  please use it     function generateXML  tag in  value in     attribute in           return            attributes out           if  is array  attribute in            if  count  attribute in     0               foreach  attribute in as  k  gt  v                    attributes out         k        v                   endforeach                      return   lt    tag in     attributes out   trim  value in              gt       gt    value in   lt     tag in   gt         function arrayToXML  array in        return            attributes   array        foreach  array in as  k  gt  v           if   k 0                          attribute                 attributes str replace         k      v            else               if  is array  v                     return    generateXML  k arrayToXML  v   attributes                    attributes   array                  else if  is bool  v                      return    generateXML  k    v  true    true     false    attributes                    attributes   array                  else                    return    generateXML  k  v  attributes                    attributes   array                                endforeach      return  return         Love to all

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With FluidXML you can generate  starting from a PHP Array  an XML for SimpleXML with    just two lines of code    fluidxml    fluidxml  array    simplexml   simplexml import dom  fluidxml- gt dom       An example array could be   array      doc    gt                   fruit    gt   orange                  cake     gt                         id    gt   123                               gt   tiramisu                      pasta    gt   matriciana                       pasta    gt   boscaiola            https   github com servo-php fluidxml

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You may use xmlrpc encode to create a xml from array if a verbose xml is not a problem  www php net xmlrpc encode  be careful the xml created differs in case you use associative and or numeric keys   lt  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   gt  b   c   gt  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     gt

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I found all of the answers to use too much code  Here is an easy way to do it  function to xml SimpleXMLElement  object  array  data           foreach   data as  key   gt   value            if  is array  value                  new object    object- gt addChild  key               to xml  new object   value             else                  if the key is an integer  it needs text with it to actually work              if   key    0  amp  amp   key     int   key                     key    quot key  key quot                               object- gt addChild  key   value                               Then it s a simple matter of sending the array into the function  which uses recursion  so it will handle a multi-dimensional array   xml   new SimpleXMLElement   lt rootTag  gt     to xml  xml   my array    Now  xml contains a beautiful XML object based on your array exactly how you wrote it  print  xml- gt asXML

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Here is my entry  simple and clean    function array2xml  array   xml   false       if  xml     false            xml   new SimpleXMLElement   lt root  gt               foreach  array as  key   gt   value           if is array  value                array2xml  value   xml- gt addChild  key             else               xml- gt addChild  key   value                       return  xml- gt asXML        header  Content-type  text xml    print array2xml  array

[php] How to convert array to SimpleXML

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