ThinkPHP XML格式转换成数组

XML格式转换成数组 用递归操作很简单，大家可以下载附件测试
// Xml 转 数组, 包括根键，忽略空元素和属性，尚有重大错误<br> public function xml_to_array( $xml )<br>     {<br>         $reg = "/]*?>([\\x00-\\xFF]*?)/";<br>         if(preg_match_all($reg, $xml, $matches))<br>         {<br>             $count = count($matches[0]);<br>             $arr = array();<br>             for($i = 0; $i              {<br>                 $key = $matches[1][$i];<br>                 $val = $this->xml_to_array( $matches[2][$i] );  // 递归<br>                 if(array_key_exists($key, $arr))<br>                 {<br>                     if(is_array($arr[$key]))<br>                     {<br>                         if(!array_key_exists(0,$arr[$key])) <br>                         {<br>                             $arr[$key] = array($arr[$key]);<br>                         }<br>                     }else{<br>                         $arr[$key] = array($arr[$key]);<br>                     }<br>                     $arr[$key][] = $val;<br>                 }else{<br>                     $arr[$key] = $val;<br>                 }<br>             }<br>             return $arr;<br>         }else{<br>             return $xml;<br>         }<br>     }<br> <br> <br> // Xml 转 数组, 不包括根键<br> public function xmltoarray( $xml )<br>     {<br> <br>         $arr = $this->xml_to_array($xml);<br>         $key = array_keys($arr);<br>         return $arr[$key[0]];<br>     }第二种方法，预防递归溢出class XML<br> {<br> <br> public $parser = NULL;<br> public $document = NULL;<br> public $parent = NULL;<br> public $stack = NULL;<br> public $last_opened_tag = NULL;<br> <br> public function XML( )<br>     {<br>         $this->parser = xml_parser_create( );<br>         xml_parser_set_option( $this->parser, XML_OPTION_CASE_FOLDING, false );<br>         xml_set_object( $this->parser, $this );<br>         xml_set_element_handler( $this->parser, "open", "close" );<br>         xml_set_character_data_handler( $this->parser, "data" );<br>     }<br> <br> public function destruct( )<br>     {<br>         xml_parser_free( $this->parser );<br>     }<br> <br> public function &parse( &$data )<br>     {<br>         $this->document = array( );<br>         $this->stack = array( );<br>         $this->parent =& $this->document;<br>         $parsedata = xml_parse( $this->parser, $data, true ) ? $this->document : NULL;<br>         return $parsedata;<br>     }<br> <br> public function open( &$parser, $tag, $attributes )<br>     {<br>         $this->data = "";<br>         $this->last_opened_tag = $tag;<br>         if ( is_array( $this->parent ) && array_key_exists( $tag, $this->parent ) )<br>         {<br>             if ( is_array( $this->parent[$tag] ) && array_key_exists( 0, $this->parent[$tag] ) )<br>             {<br>                 $key = count_numeric_items( $this->parent[$tag] );<br>             }<br>             else<br>             {<br>                 if ( array_key_exists( "{$tag} attr", $this->parent ) )<br>                 {<br>                     $arr = array(<br>                         "0 attr" => $this->parent["{$tag} attr"],<br>                         $this->parent[$tag]<br>                     );<br>                     unset( $this->parent["{$tag} attr"] );<br>                 }<br>                 else<br>                 {<br>                     $arr = array(<br>                         $this->parent[$tag]<br>                     );<br>                 }<br>                 $this->parent[$tag] =& $arr;<br>                 $key = 1;<br>             }<br>             $this->parent =& $this->parent[$tag];<br>         }<br>         else<br>         {<br>             $key = $tag;<br>         }<br>         if ( $attributes )<br>         {<br>             $this->parent["{$key} attr"] = $attributes;<br>         }<br>         $this->parent =& $this->parent[$key];<br>         $this->stack[] =& $this->parent;<br>     }<br> <br> public function data( &$parser, $data )<br>     {<br>         if ( $this->last_opened_tag != NULL )<br>         {<br>             $this->data .= $data;<br>         }<br>     }<br> <br> public function close( &$parser, $tag )<br>     {<br>         if ( $this->last_opened_tag == $tag )<br>         {<br>             $this->parent = $this->data;<br>             $this->last_opened_tag = NULL;<br>         }<br>         array_pop( $this->stack );<br>         if ( $this->stack )<br>         {<br>             $this->parent =& $this->stack[count( $this->stack ) - 1];<br>         }<br>     }<br> <br> }<br> <br> function &XML_unserialize( &$xml )<br> {<br>     $xml_parser = new XML( );<br>     $data =& $xml_parser->parse( $xml );<br>     $xml_parser->destruct( );<br>     return $data;<br> }<br> <br> function &XML_serialize( &$data, $level = 0, $prior_key = NULL )<br> {<br>     if ( $level == 0 )<br>     {<br>         ob_start( );<br>         echo "<?xml version=\"1.0\" ?>";<br>         echo "\n";<br>     }<br>     while ( list( $key, $value ) = each( $data ) )<br>     {<br>         if ( !strpos( $key, " attr" ) )<br>         {<br>             if ( is_array( $value ) && array_key_exists( 0, $value ) )<br>             {<br>                 xml_serialize( $value, $level, $key );<br>             }<br>             else<br>             {<br>                 $tag = $prior_key ? $prior_key : $key;<br>                 echo str_repeat( "\t", $level );<br>                 echo "                 echo $tag;<br>                 if ( array_key_exists( "{$key} attr", $data ) )<br>                 {<br>                     while ( list( $attr_name, $attr_value ) = each( $data["{$key} attr"] ) )<br>                     {<br>                         echo " ";<br>                         echo $attr_name;<br>                         echo "=\"";<br>                         echo htmlspecialchars( $attr_value );<br>                         echo "\"";<br>                     }<br>                     reset( $data["{$key} attr"] );<br>                 }<br>                 if ( is_null( $value ) )<br>                 {<br>                     echo " />\n";<br>                 }<br>                 else if ( !is_array( $value ) )<br>                 {<br>                     echo ">";<br>                     echo htmlspecialchars( $value );<br>                     echo "{$tag}>\n";<br>                 }<br>                 else<br>                 {<br>                     echo ">\n";<br>                     echo xml_serialize( $value, $level + 1 );<br>                     echo str_repeat( "\t", $level );<br>                     echo "{$tag}>\n";<br>                 }<br>             }<br>         }<br>     }<br>     reset( $data );<br>     if ( $level == 0 )<br>     {<br>         $str =& ob_get_contents( );<br>         ob_end_clean( );<br>         return $str;<br>     }<br> }<br> <br> function count_numeric_items( &$array )<br> {<br>     return is_array( $array ) ? count( array_filter( array_keys( $array ), "is_numeric" ) ) : 0;<br> }

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