php发送get、post请求的6种方法简明总结

<?php
$url='//www.jb51.net/';
$html = file_get_contents($url);
echo $html;
?>

<?php
$fp = fopen($url, ‘r');
stream_get_meta_data($fp);
while(!feof($fp)) {
$result .= fgets($fp, 1024);
}
echo “url body: $result”;
fclose($fp);
?>

<?php
$data = array (‘foo' => ‘bar');
$data = http_build_query($data);

$opts = array (
‘http' => array (
‘method' => ‘post',
‘header'=> “content-type: application/x-www-form-urlencodedrn” .
“content-length: ” . strlen($data) . “rn”,
‘content' => $data
)
);

$context = stream_context_create($opts);
$html = file_get_contents(‘http://localhost/e/admin/test.html', false, $context);

echo $html;
?>

<?php
function get_url ($url,$cookie=false)
{
$url = parse_url($url);
$query = $url[path].”?”.$url[query];
echo “query:”.$query;
$fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30);
if (!$fp) {
return false;
} else {
$request = “get $query http/1.1rn”;
$request .= “host: $url[host]rn”;
$request .= “connection: closern”;
if($cookie) $request.=”cookie:  $cookien”;
$request.=”rn”;
fwrite($fp,$request);
while(!@feof($fp)) {
$result .= @fgets($fp, 1024);
}
fclose($fp);
return $result;
}
}
//获取url的html部分，去掉header
function geturlhtml($url,$cookie=false)
{
$rowdata = get_url($url,$cookie);
if($rowdata)
{
$body= stristr($rowdata,”rnrn”);
$body=substr($body,4,strlen($body));
return $body;
}

return false;
}
?>

<?php
function http_post($url,$data,$cookie, $referrer=”")
{

// parsing the given url
$url_info=parse_url($url);

// building referrer
if($referrer==”") // if not given use this script as referrer
$referrer=”111″;

// making string from $data
foreach($data as $key=>$value)
$values[]=”$key=”.urlencode($value);
$data_string=implode(“&”,$values);

// find out which port is needed – if not given use standard (=80)
if(!isset($url_info["port"]))
$url_info["port"]=80;

// building post-request:
$request.=”post “.$url_info["path"].” http/1.1n”;
$request.=”host: “.$url_info["host"].”n”;
$request.=”referer: $referern”;
$request.=”content-type: application/x-www-form-urlencodedn”;
$request.=”content-length: “.strlen($data_string).”n”;
$request.=”connection: closen”;

$request.=”cookie:  $cookien”;

$request.=”n”;
$request.=$data_string.”n”;

$fp = fsockopen($url_info["host"],$url_info["port"]);
fputs($fp, $request);
while(!feof($fp)) {
$result .= fgets($fp, 1024);
}
fclose($fp);

return $result;
}

?>

<?php
$ch = curl_init();
$timeout = 5;
curl_setopt ($ch, curlopt_url, ‘//www.jb51.net/');
curl_setopt ($ch, curlopt_returntransfer, 1);
curl_setopt ($ch, curlopt_connecttimeout, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);

echo $file_contents;
?>