PHP/Network/Socket

Материал из Web эксперт
Версия от 07:06, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Getting and Printing a Web Page with fopen()

<html>
<head>
<title>Getting and printing a web page with fopen()</title>
</head>
<body>
<?php
$webpage = "http://www.wbex.ru/index.htm";
$fp = fopen( $webpage, "r" ) or die("couldn"t open $webpage");
while ( ! feof( $fp )){
    print fgets( $fp, 1024 );
}
?>
</body>
 </html>



Open socket and read

<?php
   // Establish a port 80 connection with www.example.ru
   $http = fsockopen("www.wbex.ru",80);
   // Send a request to the server
   $req = "GET / HTTP/1.1\r\n";
   $req .= "Host: www.wbex.ru\r\n";
   $req .= "Connection: Close\r\n\r\n";
   fputs($http, $req);
   // Output the request results
   while(!feof($http)) {
      echo fgets($http, 1024);
   }
   // Close the connection
   fclose($http);
?>



Outputting the Status Lines Returned by Web Servers

<html>
<head>
<title>Outputting the status lines returned by web servers</title>
</head>
<body>
<?php
$to_check = array ("www.wbex.ru" => "/index.htm");
foreach ( $to_check as $host => $page ){
    $fp = fsockopen( "$host", 80, &$errno, &$errdesc, 10);
    print "Trying $host<BR>\n";
    if ( ! $fp ){
        print "Couldn"t connect to $host:\n<br>Error: $errno\n<br>Desc:$errdesc\n";
        print "<br><hr><br>\n";
        continue;
    }
    print "Trying to get $page<br>\n";
    fputs( $fp, "HEAD $page HTTP/1.0\r\n\r\n" );
    print fgets( $fp, 1024 );
    print "<br><br><br>\n";
    fclose( $fp );
}
?>
</body>
</html>



Retrieving a Web Page Using fsockopen()

<html>
<head>
<title>Retrieving a Web page using fsockopen()</title>
</head>
<body>
<?php
$host = "www.wbex.ru";
$page = "/index.htm";
$fp = fsockopen( "$host", 80, &$errno, &$errdesc);
if ( ! $fp )
    die ( "Couldn"t connect to $host:\nError: $errno\nDesc: $errdesc\n" );
$request = "GET $page HTTP/1.0\r\n";
$request .= "Host: $host\r\n";
$request .= "Referer: http://www.wbex.ru/index.htm\r\n";
$request .= "User-Agent: PHP test client\r\n\r\n";
$page = array();
fputs ( $fp, $request );
while ( ! feof( $fp ) )
    $page[] = fgets( $fp, 1024 );
fclose( $fp );print "the server returned ".(count($page))." lines!";
 ?>
</body>
</html>