PHP远程获取网页内容

	include 'StringBuilder.php';
	class CutPage{
		function __construct(){
		}
		
		//方法一：连接 获取真个文件的文本内容
		function getAllContent($url){
			$resouce=fopen($url, "r") or die("文件打开失败！");
			if(!$resouce){
				echo "请求文件不存在！";
			}
			//$allc//长度太短了取不全用自购建的stringbuilder
			$sb=new StringBuilder();
			
			while(!feof($resouce)){
				//如果没有到文件的结尾则继续向下执行
				$line=fgets($resouce,4096);
				$sb->append($line);
			}
			fclose($resouce);
			return $sb->toString();
		}
		//方法二：获取所有的文本进行文本title的匹配---------格式为：xxxx(xx)xxx的形式表达式	
		function matchContentTitle($content,$regex_title){
			//echo "regex:".$regex_title;
			if(preg_match($regex_title, $content)){
				$array=preg_split($regex_title, $content,-1,PREG_SPLIT_DELIM_CAPTURE);
				return  $array[1];
			}else{
				echo "匹配失败！";
			}
		}
		//匹配章节 返回携带章节的array
		function matchContentChapter($content,$regex_chapter){
			if(preg_match_all($regex_chapter, $content,$matcher)){
				return $matcher[1];
			}else{
				echo "匹配失败！";
				return ;
			}
		}
		
	}

测试php文件

	include 'CutPage.php';
	class Test{
		public	static function  start($url,$regex_title,$regex_chapter){
				$cut=new CutPage();
				$all=$cut->getAllContent($url);
				$returnTitle=$cut->matchContentTitle($all, $regex_title);
				echo "题目：".$returnTitle;
				$arrays=$cut->matchContentChapter($all, $regex_chapter);	
				for($i=0;$i正则表达式
	$regex_title="/\s*[<]div id=\"title\">[<][h][1]>(\S+)[<]\/[h][1]>[<]\/div>\s*/";
		
	$regex_chapter="/\s*[<]a href=\"\d{7}[.]html\"[>](\W+)[<]\/a>\s*/";//章
		
	Test::start($url, $regex_title, $regex_chapter);
	//echo "cut".$return;
	//匹配汉字的正则表达式^[\u4E00-\u9FA5]+
		

class StringBuilder
{
    const LINE="
";
    protected $list= array('');

    
    public function __construct( $str=NULL)
    {
        array_push($this->list,$str);
    
    }
    
    public function append($str)
    {
        array_push($this->list,$str);
        return $this;
    }

    public function appendLine($str)
    {
        array_push($this->list,$str.self::LINE);
        return $this;
    }

    public function appendFormat( $str,mixed $args)
    {
        array_push($this->list, sprintf($str,$args));
        return $this;
    }

    public function toString()
    {
        return implode("",$this->list);
    }

    public function __destruct()
    {
        unset($this->list);
    }
} 
 

以上就介绍了PHP远程获取网页内容，包括了正则表达式方面的内容，希望对PHP教程有兴趣的朋友有所帮助。