php 自制基于simple_html_dom的爬虫一只v1.0

一直以来网页解析和爬虫的制作热情丝毫未减 今天用开源的simple_html_dom.php解析框架做了一只爬虫：

<?php
/*
	*.Pho spider v1.0
	*.Written by Radish.ghost 2015.1.20
*/
//error_reporting(1); //close error report
//curl model //I will realize it in later versions
include_once("simple_html_dom.php");
$html=file_get_html("http://www.baidu.com");//The url which you want dig

$tmp=array();//Save the url in the first dig
foreach($html->find("a") as $e) 
{
	$f=$e->href;
	//if($f[10]==":")continue;
	if($f[0]=="/")$f="http://www.baidu.com".$f;//Completion the url
	if($f[4]=="s")continue;//If the url is "https://" continue (the simple_html_dom might can"t prase the https:// url)  
	if(stripos($f,"baidu")==FALSE)continue;//If the url not in this website continue
    echo $f . "<br>";
	$tmp[$cun++]=$f; //Save the urls into array
}

foreach($tmp as $r) //Dig the urls in $tmp[]
{
$html2=file_get_html($r); //Redo the step
foreach($html2->find("a") as $a)
{
	$u=$a->href;
	if($u[0]=="/")$u="http://www.baidu.com".$u;
	if($u[4]=="s")continue;
	if(stripos($u,"baidu")==FALSE)continue;
	echo $u."<br>";
}
$html2=null;
}
?>

//最后总会出现一个Fatal error: Call to a member function find() on a non-object in D:xampphtdocshtmlindex.php on line 21 的警告 与学长沟通后改正了很多小错误 不过这个仍然没有解决 希望有大神能够指点一下

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simple_html_dom下载：

https://github.com/Ph0enixxx/simple_html_dom

= =家里电脑用不了git4win