includes/functions-xml.php

   1 <?php
   2 /*************************************************************************/
   3 /* This class stores associative arrays in an xml formatted string.       */
   4 /* There's also a function thar retrieves them. If you try to use        */
   5 /* xml2array with a general xml, it can fail, since there can be some    */
   6 /* repeated indexes....                                                  */
   7 /* Source: http://www.phpclasses.org/browse/package/2286/                */
   8 /*************************************************************************/
   9
  10 class yourls_array2xml {
  11         var $text;
  12         var $arrays, $keys, $node_flag, $depth, $xml_parser;
  13         /*Converts an array to an xml string*/
  14         function array2xml($array) {
  15         //global $text;
  16         $this->text="<?xml version=\"1.0\" encoding=\"iso-8859-1\"?><result>";
  17         $this->text.= $this->array_transform($array);
  18         $this->text .="</result>";
  19         return $this->text;
  20         }
  21
  22         function array_transform($array){
  23         //global $array_text;
  24         foreach($array as $key => $value){
  25         if(!is_array($value)){
  26                //BEGIN code mod by Doug Vanderweide, 13 Jan 2011
  27                //does $value contain html entities?
  28                if(strlen($value) != strlen(htmlentities($value))) {
  29                        //if so, encode as CDATA
  30                        $value = "<![CDATA[" . htmlentities($value) . "]]>";
  31                }
  32                $this->text .= "<$key>$value</$key>";
  33                //END code mod
  34          } else {
  35          $this->text.="<$key>";
  36          $this->array_transform($value);
  37          $this->text.="</$key>";
  38          }
  39         }
  40         //return $array_text;
  41
  42         }
  43         /*Transform an XML string to associative array "XML Parser Functions"*/
  44         function xml2array($xml){
  45         $this->depth=-1;
  46         $this->xml_parser = xml_parser_create();
  47         xml_set_object($this->xml_parser, $this);
  48         xml_parser_set_option ($this->xml_parser,XML_OPTION_CASE_FOLDING,0);//Don't put tags uppercase
  49         xml_set_element_handler($this->xml_parser, "startElement", "endElement");
  50         xml_set_character_data_handler($this->xml_parser,"characterData");
  51         xml_parse($this->xml_parser,$xml,true);
  52         xml_parser_free($this->xml_parser);
  53         return $this->arrays[0];
  54
  55         }
  56         function startElement($parser, $name, $attrs)
  57          {
  58            $this->keys[]=$name; //We add a key
  59            $this->node_flag=1;
  60            $this->depth++;
  61          }
  62         function characterData($parser,$data)
  63          {
  64            $key=end($this->keys);
  65            $this->arrays[$this->depth][$key]=$data;
  66            $this->node_flag=0; //So that we don't add as an array, but as an element
  67          }
  68         function endElement($parser, $name)
  69          {
  70            $key=array_pop($this->keys);
  71            //If $node_flag==1 we add as an array, if not, as an element
  72            if($this->node_flag==1){
  73              $this->arrays[$this->depth][$key]=$this->arrays[$this->depth+1];
  74              unset($this->arrays[$this->depth+1]);
  75            }
  76            $this->node_flag=1;
  77            $this->depth--;
  78          }
  79
  80 }//End of the class
  81