code example _php instance of PHP simulation get_headers function

Copy Code code as follows:

<?php

if (!function_exists (' get_headers ')) {

The function get_headers ($url, $format =0) {

$url =parse_url ($url);

$end = "\r\n\r\n";

$FP =fsockopen ($url [' Host '], (Empty ($url [' Port ']): $url [' Port ']), $errno, $errstr, 30);

Modified if ($FP) {

$out = "get/http/1.1\r\n";

$out. = "Host:". $url [' Host ']. " \ r \ n ";

$out. = "connection:close\r\n\r\n";

One $var = ';

Fwrite ($fp, $out);

while (!feof ($fp)) {

$var. =fgets ($FP, 1280);

if (Strpos ($var, $end))

break;

17}

Fclose ($FP);

$var =preg_replace ("/\r\n\r\n.*\$/", "", $var);

$var =explode ("\ r \ n", $var);

if ($format) {

foreach ($var as $i) {

Preg_match ('/^ ([a-za-z-]+): + (. *) $/', $i, $parts))

$v [$parts [1]]= $parts [2];

25}

return $v;

}else{

return $var;

29}

30}

31}

32}

Echo ' <pre> ';

Print_r (get_headers (' http://www.jb51.net '));