php发送get、post请求的几种方法

  • 内容
  • 评论
  • 相关

方法1: 用file_get_contents 以get方式获取内容

1
2
3
4
5
<?php
$url='http://www.domain.com/';
$html = file_get_contents($url);
echo $html;
?>

方法2: 用fopen打开url, 以get方式获取内容

1
2
3
4
5
6
7
8
9
10
11
<?php
$fp = fopen($url, 'r');
//返回请求流信息(数组:请求状态,阻塞,返回值是否为空,返回值http头等)
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

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
//生成url-encode后的请求字符串,将数组转换为字符串
$data = http_build_query($data);
$opts = array (
<span style="white-space:pre"> </span>'http' => array (
<span style="white-space:pre"> </span>'method' => 'POST',
<span style="white-space:pre"> </span>'header'=> "Content-type: application/x-www-form-urlencoded\r\n" .
<span style="white-space:pre"> </span>"Content-Length: " . strlen($data) . "\r\n",
<span style="white-space:pre"> </span>'content' => $data
<span style="white-space:pre"> </span>)
);

//生成请求的句柄文件
$context = stream_context_create($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

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
<?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/1.1\r\n";
$request .= "Host: $url[host]\r\n";
$request .= "Connection: Close\r\n";
if($cookie) $request.="Cookie: $cookie\n";
$request.="\r\n";
fwrite($fp,$request);
while()) {
$result .= @fgets($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,"\r\n\r\n");
$body=substr($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

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

1
2
3
4
5
6
7
8
9
10
<?php
$ch = curl_init();
$timeout = 5;
curl_setopt ($ch, CURLOPT_URL, 'http://www.domain.com/');
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);
echo $file_contents;
?>