| <?php |
| ################################################################################### |
| # |
| # XML Library, by Keith Devens, version 1.2b |
| # http://keithdevens.com/software/phpxml |
| # |
| # This code is Open Source, released under terms similar to the Artistic License. |
| # Read the license at http://keithdevens.com/software/license |
| # |
| ################################################################################### |
| |
| ################################################################################### |
| # XML_unserialize: takes raw XML as a parameter (a string) |
| # and returns an equivalent PHP data structure |
| ################################################################################### |
| function & XML_unserialize(&$xml){ |
| $xml_parser = &new XML(); |
| $data = &$xml_parser->parse($xml); |
| $xml_parser->destruct(); |
| return $data; |
| } |
| ################################################################################### |
| # XML_serialize: serializes any PHP data structure into XML |
| # Takes one parameter: the data to serialize. Must be an array. |
| ################################################################################### |
| function & XML_serialize(&$data, $level = 0, $prior_key = NULL){ |
| if($level == 0){ ob_start(); echo '<?xml version="1.0" ?>',"\n"; } |
| while(list($key, $value) = each($data)) |
| if(!strpos($key, ' attr')) #if it's not an attribute |
| #we don't treat attributes by themselves, so for an empty element |
| # that has attributes you still need to set the element to NULL |
| |
| if(is_array($value) and array_key_exists(0, $value)){ |
| XML_serialize($value, $level, $key); |
| }else{ |
| $tag = $prior_key ? $prior_key : $key; |
| echo str_repeat("\t", $level),'<',$tag; |
| if(array_key_exists("$key attr", $data)){ #if there's an attribute for this element |
| while(list($attr_name, $attr_value) = each($data["$key attr"])) |
| echo ' ',$attr_name,'="',htmlspecialchars($attr_value),'"'; |
| reset($data["$key attr"]); |
| } |
| |
| if(is_null($value)) echo " />\n"; |
| elseif(!is_array($value)) echo '>',htmlspecialchars($value),"</$tag>\n"; |
| else echo ">\n",XML_serialize($value, $level+1),str_repeat("\t", $level),"</$tag>\n"; |
| } |
| reset($data); |
| if($level == 0){ $str = &ob_get_contents(); ob_end_clean(); return $str; } |
| } |
| ################################################################################### |
| # XML class: utility class to be used with PHP's XML handling functions |
| ################################################################################### |
| class XML{ |
| var $parser; #a reference to the XML parser |
| var $document; #the entire XML structure built up so far |
| var $parent; #a pointer to the current parent - the parent will be an array |
| var $stack; #a stack of the most recent parent at each nesting level |
| var $last_opened_tag; #keeps track of the last tag opened. |
| |
| function XML(){ |
| $this->parser = &xml_parser_create(); |
| xml_parser_set_option(&$this->parser, XML_OPTION_CASE_FOLDING, false); |
| xml_set_object(&$this->parser, &$this); |
| xml_set_element_handler(&$this->parser, 'open','close'); |
| xml_set_character_data_handler(&$this->parser, 'data'); |
| } |
| function destruct(){ xml_parser_free(&$this->parser); } |
| function & parse(&$data){ |
| $this->document = array(); |
| $this->stack = array(); |
| $this->parent = &$this->document; |
| return xml_parse(&$this->parser, &$data, true) ? $this->document : NULL; |
| } |
| function open(&$parser, $tag, $attributes){ |
| $this->data = ''; #stores temporary cdata |
| $this->last_opened_tag = $tag; |
| if(is_array($this->parent) and array_key_exists($tag,$this->parent)){ #if you've seen this tag before |
| if(is_array($this->parent[$tag]) and array_key_exists(0,$this->parent[$tag])){ #if the keys are numeric |
| #this is the third or later instance of $tag we've come across |
| $key = count_numeric_items($this->parent[$tag]); |
| }else{ |
| #this is the second instance of $tag that we've seen. shift around |
| if(array_key_exists("$tag attr",$this->parent)){ |
| $arr = array('0 attr'=>&$this->parent["$tag attr"], &$this->parent[$tag]); |
| unset($this->parent["$tag attr"]); |
| }else{ |
| $arr = array(&$this->parent[$tag]); |
| } |
| $this->parent[$tag] = &$arr; |
| $key = 1; |
| } |
| $this->parent = &$this->parent[$tag]; |
| }else{ |
| $key = $tag; |
| } |
| if($attributes) $this->parent["$key attr"] = $attributes; |
| $this->parent = &$this->parent[$key]; |
| $this->stack[] = &$this->parent; |
| } |
| function data(&$parser, $data){ |
| if($this->last_opened_tag != NULL) #you don't need to store whitespace in between tags |
| $this->data .= $data; |
| } |
| function close(&$parser, $tag){ |
| if($this->last_opened_tag == $tag){ |
| $this->parent = $this->data; |
| $this->last_opened_tag = NULL; |
| } |
| array_pop($this->stack); |
| if($this->stack) $this->parent = &$this->stack[count($this->stack)-1]; |
| } |
| } |
| function count_numeric_items(&$array){ |
| return is_array($array) ? count(array_filter(array_keys($array), 'is_numeric')) : 0; |
| } |
| ?> |