php模仿用户访问网页程序代码
<?php
function httpget($url, $followredirects = true) {
global $final_url;
$url_parsed = parse_url($url);
if (empty($url_parsed['scheme'])) {
$url_parsed = parse_url('http://' . $url);
}
$final_url = $url_parsed;
$port = $url_parsed["port"];
if (!$port) {
$port = 80;
}
$rtn['url']['port'] = $port;
$path = $url_parsed["path"];
if (empty($path)) {
$path = "/";
}
if (!empty($url_parsed["query"])) {
$path.= "?" . $url_parsed["query"];
}
$rtn['url']['path'] = $path;
$host = $url_parsed["host"];
$foundbody = false;
$out = "get $path http/1.0 ";
$out.= "host: $host ";
$out.= "user-agent: mozilla/5.0 (windows; u; windows nt 5.1; en-us; rv:1.8.1) gecko/20061010 firefox/2.0 ";
$out.= "connection: close ";
if (!$fp = @fsockopen($host, $port, $errno, $errstr, 30)) {
$rtn['errornumber'] = $errno;
$rtn['errorstring'] = $errstr;
}
fwrite($fp, $out);
while (!@feof($fp)) {
$s = @fgets($fp, 128);
if ($s == " ") {
$foundbody = true;
continue;
}
if ($foundbody) {
$body.= $s;
} else {
if (($followredirects) && (stristr($s, "location:") != false)) {
$redirect = preg_replace("/location:/i", "", $s);
return httpget(trim($redirect));
}
$header.= $s;
}
}
fclose($fp);
return (trim($body));
}教程网址:http://www.phprm.com/code/33556.html
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