A php text collection class

$C = new Collection();
$C->url = 'http://bbs.it-home.org/subject_search?cat=1001&search_text=%E5%B9%B4%E8%BD %BB%E4%BA%BA';
$C->startFlag = '';
$C->endFlag = '';
$C->init();
$C->regExp = "| (.*)(.*)|Uis";
$C->parse();
print_rr( $C->result);
*/

php text collection class file:

<%
/**
Module name: php text collection class
**/
class Collection{
//Enter public
var $url; //URL address to be analyzed
var $content; / /Read content
var $regExp; //To obtain part of the regular expression
var $codeFrom; //Encoding of the original text
var $codeTo; //Coding to be converted
var $timeout; //Waiting for collection Time
var $startFlag; //The flag for starting article collection is 0 by default. When collecting entries, only the text blocks between $startFlag and $endFlag are searched and collected.
var $endFlag; //The flag of the end of article collection. The default is the end of the article. When collecting entries, only the text blocks between $startFlag and $endFlag are searched and collected.
var $block; //The text block between $startFlag and $endFlag
//Export private
var $result; //Output result
//Initialize the collector
function init( ){
 if(empty($url))
 $this->getFile();
 $this->convertEncoding();
}
//Collect the required content
function parse(){
 $this- >getBlock();
 preg_match_all($this->regExp, $this->block ,$this->result,PREG_SET_ORDER);
 return $this->block;
}
//Error handling
 function error($msg){
 echo $msg;
}
//If reading the remote web page is successful, return the file; if it fails, return false
function getFile(){
 $datalines = @file($this-> ;url);
 if(!$datalines){
 $this->error("can't read the url:".$this->url);
 return false;
 } else {
 $importdata = implode('', $datalines);
 $importdata = str_replace(array ("rn", "r"), "n", $importdata);
 $this->content = $importdata;
 }
 }
 //Get the required text block
 function getBlock(){
 if(!empty($this->startFlag))
 $this->block = substr($this->content,strpos($this- >content,$this->startFlag));
 if(!empty($this->endFlag))
 $this->block = substr($this->block,0,strpos($this ->block,$this->endFlag));
 }
 //Conversion of content encoding
 function convertEncoding(){
 if(!empty($this->codeTo))
 $this->codeFrom = mb_detect_encoding($this->content);
 //Conversion is only performed if the conversion plan is given.
 if(!empty($this->codeTo))
 $this->content = mb_convert_encoding($this->content,$this->codeTo,$this->codeFrom) or $this-> ;error("can't convert Encoding");
 }
}//end of class
?>