php发送get,post请求的6种方法

方法1: 用file_get_contents 以get方式获取内容:

<?php $url='http://www.jb51.net/';
$html = file\_get\_contents($url); echo $html; ?> 

方法2: 用fopen打开url, 以get方式获取内容:

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

方法3:用file_get_contents函数,以post方式获取url

<?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; ?> 

方法4:用fsockopen函数打开url,以get方式获取完整的数据,包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启

<?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,$request); while([email protected]($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;
} ?> 

方法5:用fsockopen函数打开url,以POST方式获取完整的数据,包括header和body

<?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;
} ?> 

方法6:使用curl库,使用curl库之前,可能需要查看一下php.ini是否已经打开了curl扩展

<?php $ch = curl_init();
$timeout = 5;
curl\_setopt ($ch, CURLOPT\_URL, ‘http://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; ?> 
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