Array Conversion to SimpleXML Tutorial in PHP

The SimpleXML extension function provides a toolset for converting XML into objects. These objects handle ordinary property selectors and array iterators.

Example 1:

<?php 
//  Will php Array is converted to xml Code for the document 
 
// Definition 1 Converts an array to xml The function of. 
function arrayToXml($array, $rootElement = null, $xml = null) { 
  $_xml = $xml; 
    
  //  If not $rootElement Is inserted $rootElement
  if ($_xml === null) { 
    $_xml = new SimpleXMLElement($rootElement !== null ? $rootElement : '<root/>'); 
  } 
    
  //  Access all key-value pairs  
  foreach ($array as $k => $v) { 
      
    //  If you have nested arrays  
    if (is_array($v)) { 
        
      //  Calling functions of nested arrays 
      arrayToXml($v, $k, $_xml->addChild($k)); 
      } 
        
    else { 
        
        
      $_xml->addChild($k, $v); 
    } 
  } 
    
  return $_xml->asXML(); 
} 
  
//  Create 1 Array for demonstration  
$my_array = array ( 
'name' => 'GFG', 
'subject' => 'CS', 
  
  //  Create a nested array. 
  'contact_info' => array ( 
  'city' => 'Noida', 
  'state' => 'UP', 
  'email' => '448199179@qq.com'
  ), 
); 
  
//  Call arrayToxml Function and print the result 
echo arrayToXml($my_array); 
?>

Output:

<?xml version="1.0"?>
<root>
  <name> GFG </name>
  <subject> CS </subject>
  <contact_info >
    <city > Noida < /city >
    <state > UP < /state >
    <email > 448199179@qq.com </email>
  <contact_info>
<root>

You can use the array_walk_recursive () function to solve the above problem. This function converts an array to an xml document, where the key of the array is converted to a value and the value of the array is converted to an xml element.

Example 2:

<?php 
//  Will php Array is converted to xml Code for the document 
// Create 1 Array of numbers 
$my_array = array ( 
  'a' => 'x', 
  'b' => 'y', 
    
  // creating nested array 
  'another_array' => array ( 
    'c' => 'z', 
  ), 
); 
  
//  This function uses the root Element creation 1 A xml Object. 
$xml = new SimpleXMLElement('<root/>'); 
  
//  This function re-adds the array elements to the xml In the document 
array_walk_recursive($my_array, array ($xml, 'addChild')); 
  
//  This function prints xml Documents.  
print $xml->asXML(); 
?>

Output:

< ? xml version = " 1.0 "? > <root> 
    <x> a </ x> 
    <y> b </ y> 
    <z> c </ z> </ root>

Note:

If the system generates an error type:

PHP Fatal error: Uncaught Error: Class 'SimpleXMLElement' not found in found in in/home/6bc5567266b 35ae 33EN 76d 84307ES45ES5bdc 78. php: 24,

Then just install the php-xml, php-simplexml packages.