Noob Question

[vincenzo]

Hi,

 

Given the file ClientHttpRequest.php (code given below), and given that it will be accessed as such from a web browser from multiple clients:

 

http://<host name>/ClientHttpRequest.php?url=<some url>&port=443&arg1=somearg&arg2=somearg&arg3=somearg&path=/test.php&svr=<my server>

 

Is the following ClientHttpRequest code thread safe? (Please note the last line of the code which is instantiating the class and calling the public method in the same line.)

 

Thanks.

 

------------------------

 

<?php

 

class ClientHttpRequest {

public function __construct() {

}

 

public function post() {

$host = $_GET['url'];

$port = $_GET['port'];

$req = "arg1=" . $_GET['arg1'] . "&arg2=" . $_GET['arg2'] . "&arg3=" . $_GET['arg3'];

$http = "POST " . $_GET['path'] . " HTTP/1.1\r\n";

$http .= "Host: " . $_GET['svr'] . "\r\n";

$http .= "User-Agent: " . $_SERVER['HTTP_USER_AGENT'] . "\r\n";

$http .= "Content-Type: application/x-www-form-urlencoded\r\n";

$http .= "Content-Length: " . strlen($req) . "\r\n";

$http .= "Connection: close\r\n\r\n";

$http .= $req . "\r\n\r\n";

 

$fp = fsockopen ($host, $port, $errno, $errstr, 30);

 

if (!$fp) {

echo "Could not open a socket to host";

} else {

// NO HTTP ERROR

fputs($fp, $http);

 

// Get final acknowledgement

while (!feof($fp)) {

$res .= fgets ($fp, 1024);

}

fclose ($fp);

print $res;

}

}

}

 

(new ClientHttpRequest())->post();

?>