How PHP gets HTTP requests


Method of getting HTTP request by PHP

$5 Introduction to server

$5 Server is an array of information such as header, path, and script locations.

Sample method for getting HTTP request

$req_method = $_SERVER['REQUEST_METHOD'];
echo $req_method;

Examples supplement:

Socket mode

Using socket to establish connection, splicing HTTP message to send data for HTTP request.

An example of get mode:

$fp = fsockopen("", 80, $errno, $errstr, 30);
if (!$fp) {
 echo "$errstr ($errno)<br />\n";
} else {
 $out = "GET / HTTP/1.1\r\n";
 $out .= "Host:\r\n";
 $out .= "Connection: Close\r\n\r\n";
 fwrite($fp, $out);
 while (!feof($fp)) {
  echo fgets($fp, 128);

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