PHP implements the method of imitating socket request to return the page, phpsocket_PHP tutorial

PHP implements the method of imitating socket request to return the page, phpsocket

The example in this article describes how PHP implements a method of imitating a socket request to return a page. Share it with everyone for your reference. The specific implementation method is as follows:

Copy code The code is as follows:

$url = "www.XXXX.com"; //Make your own substitution
$parse = parse_url($url); //Parse the URL and return its components.
$host = $parse['host'];
$path = $parse['path'];
$port = 80;
$timeout = 80;
$fp = @fsockopen($host, $port, $errno, $errstr, $timeout); //Open socket link
if (!$fp){
Echo $errno."--".$errstr; //If error occurs, return error code and error message
} else {
$out = "POST $path HTTP/1.1rn"; //The following is the HTTP request header information
$out .= "Host: ".$host."rn";
$out .= "Accept: */*rn";
$out .= "Connection: Closern";
$out .= "Cookie: $cookiernrn";
 
@fwrite($fp, $out); //Write the request information into the link
$status = stream_get_meta_data($fp);
If(!$status['timed_out']) {
While (! Feof ($ fp)) {
If(($header = @fgets($fp)) && ($header == "rn" || $header == "n")) {
                                         break;                                                                                                                                                                                                                           
$stop = false;
                                                                                                                                                                                                                      while(!feof($fp) && !$stop) {                               $data = fread($fp,8192);                                $return .= $data;                                                                                                                                                                                                                                                                  fclose($fp);
Print_r($return);
}


I hope this article will be helpful to everyone’s PHP programming design.




php needs to loop through a page more than 400 times, and the return time is uncertain each time. The result is that the access time is often exceeded. What should I do?

1. Use js's setInterval+ajax to request, and add conditions in PHP to determine whether it is successful; 2. Use PHP recursive loops, such as:

function test($url)

{

echo $url.'\t\n--------';

$r = @file_get_contents($url);//What I returned here Is the number of pages. If there is no next page, return 0 and stop execution
echo $r;
if($r > 0)
{
$url = 'test.com/1 .php?p='.$r;
test($url);
}
else
{
echo 'fail';
}
}

$url = 'test.com/1.php?p=1';
$res = test($url);
?>




php uses socket to obtain web content

function GETBySocket($URL, $port=80) {
//get host from url
preg_match('/\/\/.*\//sU',$URL,$host_array);
if(!$host_array[0]) {
$URL.='/';
preg_match('/\/\/.*\//sU',$URL,$host_array);
}
$host=substr($host_array[0],2,-1);
//connect
$fp = stream_socket_client("$host:$port", $errcode, $errstr, 1);// or die("get ". $host ." failed");
//
$header = "GET ". $URL. " HTTP/1.1\r\n";
$header .= "Accept: */*\r\n";
$header .= "Accept-Language: zh-cn\r\n";
//$header .= "HTTP_CONNECTION: Keep-Alive\r\n";
$header .= "HTTP_ACCEPT: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5\r\n";
$header .= "HTTP_ACCEPT_CHARSET: gbk,*,utf-8\r\n";
//$header .= "Accept-Encoding: gzip, deflate\r\n";
$header .= "User-Agent: Mozilla/4.0(compatible; MSIE 6.0; Windows NT 5.1;)\r\n";
$header .= "Host: ". $host ."\r\n";
//$header .= "Connection: Keep-Alive\r\n";
//$header .= "Cookie: cnzz02=2; rtime=1; ltime=1148456424859; cnzz_eid=566......余下全文>>
 

http://www.bkjia.com/PHPjc/906115.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/906115.htmlTechArticlePHP实现模仿socket请求返回页面的方法，phpsocket 本文实例讲述了PHP实现模仿socket请求返回页面的方法。分享给大家供大家参考。具体实现方法...