php xml转array

转载作者:巩文 2014.12.26 12:05 热度:2215

```php
<?php
    $data='<?xml version="1.0" encoding="utf-8"?>
    <education>
        <info>
            <id>1</id>
            <name>博士</name>
        </info>
        <info>
            <id>2</id>
            <name>硕士</name>
        </info>
        <info>
            <id>3</id>
            <name>大学本科</name>
        </info>
        <info>
            <id>4</id>
            <name>大学专科</name>
        </info>
        <info>
            <id>5</id>
            <name>中专</name>
        </info>
    </education>';

function xml2array($contents, $get_attributes=1, $priority = 'tag') { 
         if(!$contents) return array();
         if(!function_exists('xml_parser_create')) { 
            //print "'xml_parser_create()' function not found!"; 
            return array(); 
         }
        //Get the XML parser of PHP - PHP must have this module for the parser to work 
        $parser = xml_parser_create(''); 
        xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8"); # http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss 
        xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0); 
        xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1); 
        xml_parse_into_struct($parser, trim($contents), $xml_values); 
        xml_parser_free($parser);
         if(!$xml_values) return;//Hmm...
         //Initializations 
        $xml_array = array(); 
        $parents = array(); 
        $opened_tags = array(); 
        $arr = array();
        $current = &$xml_array; //Refference
         //Go through the tags. 
        $repeated_tag_index = array();//Multiple tags with same name will be turned into an array 
        foreach($xml_values as $data) { 
             unset($attributes,$value);//Remove existing values, or there will be trouble
             //This command will extract these variables into the foreach scope 
             // tag(string), type(string), level(int), attributes(array). 
            extract($data);//We could use the array by itself, but this cooler.
            $result = array(); 
            $attributes_data = array(); 
              
             if(isset($value)) { 
                 if($priority == 'tag') $result = $value; 
                 else $result['value'] = $value; //Put the value in a assoc array if we are in the 'Attribute' mode 
            }
            //Set the attributes too. 
            if(isset($attributes) and $get_attributes) { 
                 foreach($attributes as $attr => $val) { 
                     if($priority == 'tag') $attributes_data[$attr] = $val; 
                     else $result['attr'][$attr] = $val; //Set all the attributes in a array called 'attr' 
                } 
             }
            //See tag status and do the needed. 
            if($type == "open") {//The starting of the tag '<tag>' 
                $parent[$level-1] = &$current; 
                 if(!is_array($current) or (!in_array($tag, array_keys($current)))) { //Insert New tag 
                    $current[$tag] = $result; 
                     if($attributes_data) $current[$tag. '_attr'] = $attributes_data; 
                    $repeated_tag_index[$tag.'_'.$level] = 1;
                    $current = &$current[$tag];
                 } else { //There was another element with the same tag name
                    if(isset($current[$tag][0])) {//If there is a 0th element it is already an array 
                        $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; 
                        $repeated_tag_index[$tag.'_'.$level]++; 
                     } else {//This section will make the value an array if multiple tags with the same name appear together 
                        $current[$tag] = array($current[$tag],$result);//This will combine the existing item and the new item together to make an array 
                        $repeated_tag_index[$tag.'_'.$level] = 2; 
                          
                         if(isset($current[$tag.'_attr'])) { //The attribute of the last(0th) tag must be moved as well 
                            $current[$tag]['0_attr'] = $current[$tag.'_attr']; 
                             unset($current[$tag.'_attr']); 
                         }
                     } 
                    $last_item_index = $repeated_tag_index[$tag.'_'.$level]-1; 
                    $current = &$current[$tag][$last_item_index]; 
                 }
             } elseif($type == "complete") { //Tags that ends in 1 line '<tag />' 
                 //See if the key is already taken. 
                if(!isset($current[$tag])) { //New Key 
                    $current[$tag] = $result; 
                    $repeated_tag_index[$tag.'_'.$level] = 1; 
                     if($priority == 'tag' and $attributes_data) $current[$tag. '_attr'] = $attributes_data;
                 } else { //If taken, put all things inside a list(array) 
                    if(isset($current[$tag][0]) and is_array($current[$tag])) {//If it is already an array...
                         // ...push the new element into that array. 
                        $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; 
                          
                         if($priority == 'tag' and $get_attributes and $attributes_data) { 
                            $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; 
                         } 
                        $repeated_tag_index[$tag.'_'.$level]++;
                     } else { //If it is not an array... 
                        $current[$tag] = array($current[$tag],$result); //...Make it an array using using the existing value and the new value 
                        $repeated_tag_index[$tag.'_'.$level] = 1; 
                         if($priority == 'tag' and $get_attributes) { 
                             if(isset($current[$tag.'_attr'])) { //The attribute of the last(0th) tag must be moved as well 
                                  
                                $current[$tag]['0_attr'] = $current[$tag.'_attr']; 
                                 unset($current[$tag.'_attr']); 
                             } 
                              
                             if($attributes_data) { 
                                $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; 
                             } 
                         } 
                        $repeated_tag_index[$tag.'_'.$level]++; //0 and 1 index is already taken 
                    } 
                 }
             } elseif($type == 'close') { //End of tag '</tag>' 
                $current = &$parent[$level-1]; 
             } 
         } 
          
         return($xml_array); 
    } 
    $arr=xml2array($data);
    var_dump($arr);

```

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