PHP downloads images to local implementation code through regular expression_PHP tutorial

Copy code The code is as follows:

/*
author: ssh_kobe
date: 20110602
shortage: If the image path in the web page is not an absolute path, it cannot be crawled
*/
set_time_limit(0);//The crawling is not limited by time

$URL=' http://pp.baidu.com/';//Any URL

get_pic($URL);

function get_pic($pic_url) {
//Get the image binary stream
$data=CurlGet($pic_url);
/*Use regular expressions to get image links*/
$pattern_src = '/<[img|IMG].*?src=['|" ](.*?(?:[.gif|.jpg]))['|"].*?[/]?>/';
$num = preg_match_all($pattern_src, $data, $match_src );
$arr_src=$match_src[1];//Get the image array
get_name($arr_src);

echo "
finished!!!";
return 0;
}

/*Get the picture type and save it to the same directory as the file*/
function get_name($pic_arr)
{
//Picture type
$pattern_type = '/(/.(jpg|bmp|jpeg|gif|png))/';

foreach($pic_arr as $pic_item){//Loop to get the address of each picture
$num = preg_match_all($pattern_type, $pic_item, $match_type);
$pic_name = get_unique().$match_type[1][0];//Change the microsecond timestamp naming
/ /Save the picture in the form of stream
$write_fd = @fopen($pic_name,"wb");
@fwrite($write_fd, CurlGet($pic_item));
@fclose($write_fd);
echo "[OK]..!";
}
return 0;
}

//Get the unique ID through microsecond time
function get_unique(){
list($msec, $sec) = explode(" ",microtime());
return $sec.intval($msec*1000000);
}

//catch Get web page content
function CurlGet($url){
$url=str_replace('&','&',$url);
$curl = curl_init();
curl_setopt($curl , CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_HEADER, false);

//curl_setopt($curl, CURLOPT_REFERER,$url);
curl_setopt($curl, CURLOPT_USERAGENT, " Mozilla/4.0 (compatible; MSIE 6.0; SeaPort/1.2; Windows NT 5.1; SV1; InfoPath.2)");
curl_setopt($curl, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($curl , CURLOPT_COOKIEFILE, 'cookie.txt');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 0);
$values ​​= curl_exec($curl);
curl_close($curl);
return $values;
}
?>

http://www.bkjia.com/PHPjc/324220.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/324220.htmlTechArticleCopy the code as follows: ?php /* author: ssh_kobe date: 20110602 shortage: If the image path in the web page is not Absolute path, you cannot crawl */ set_time_limit(0);//The crawl is not affected by time...