php实现的xml操作类

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本文实例讲述了PHP实现的xml操作类。分享给大家供大家参考,具体如下:

PHP;"> new_xml('test.xml'); $test->root('document'); $test->append_root_node('book'); $test->append_child_node('author','linage'); $test->append_child_node('page',100); $test->append_child_node('money','35 RMB'); $test->append_root_node_end(); $test->append_root_node('book','name','The"Web"Servers'); $test->append_child_node('a u t ho"r','li n a g e'); $test->append_child_node('page','35 RMB'); $test->append_root_node_end(); $test->display(); $test->save(); 生成的xml结果: linage 100 35 RMB li n a g e 100 35 RMB */ class xml{ var $version; var $encoding; var $start; var $end; var $filename; var $xml_document; var $root_start; var $root_end; var $rss_start; var $rss_end; function xml($ver='1.0',$encoding='GB2312'){ $this->version=""; $this->rss_start="rss_end=""; } function new_xml($filename){ $this->filename=$filename; return true; } function root($element){ $element=$this->filter($element); if(isset($this->start) and isset($this->end)){ exit("error:Only one top level element is allowed in an XML document./r/n"); }else{ $this->start="<$element>"; $this->end=""; $this->xml_document=$this->version."/n".$this->rss_start."/n".$this->start."/n"; return true; } } function append_root_node($title,$property=null,$pro_val=null){ $title=$this->filter($title); $property=$this->filter($property); $pro_val=$this->filter($pro_val); $property!=null?$pro_str=" $property=/"$pro_val/"":$property=null; $contents="<{$title}{$pro_str}>/n"; $this->xml_document.=$contents; $this->root_end=""; return true; } function append_root_node_end(){ $this->xml_document.=$this->root_end."/n"; return true; } function append_child_node($title='undefined',$contents='undefined',$pro_val=null,$cddate=false){ isset($property)?$pro_str=" $property=/"$pro_val/"":$property=null; $title=$this->filter($title); $contents=$this->filter($contents,false); $property=$this->filter($property); $pro_val=$this->filter($pro_val); $cddate===false?$cddate=false:$cddate=true; if($cddate){ $contents="<{$title}{$pro_str}>/n"; }else{ $contents="<{$title}{$pro_str}>$contents"; } $this->xml_document.=$contents."/n"; return true; } function display(){ header("Content-type: text/xml"); $xml=$this->xml_document.$this->end."/n".$this->rss_end; echo $xml; //return true; } function filter($sring,$replace_null=true){ $filter[]='"'; $filter[]="//"; $filter[]="/n"; $filter[]="/r"; $filter[]="/t"; $replace_null===true?$filter[]=" ":$replace_null=false; foreach ($filter as $val){ $sring=str_replace($val,'',$sring); } return $sring; } function encode(){ //you can add the convert encode function here or add other class to do that } function save(){ $this->xml_document=$this->xml_document.$this->end."/n".$this->rss_end; $handle=fopen($this->filename,'wb+'); $result=fwrite($handle,$this->xml_document); fclose($handle); if($result){ return true; }else{ echo "error:can't write to files,maybe the access denied.try to chmod 777 the directory?"; return false; } } }

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