HTTP context 選項
HTTP context 選項 — HTTP context 的選項列表
說明
提供給 http:// 和 https:// 傳輸協議的 context 選項。
transports.
範例
示例 #1 獲取一個頁面併發送 POST 數據
<?php
$postdata = http_build_query(
array(
'var1' => 'some content',
'var2' => 'doh'
)
);
$opts = array('http' =>
array(
'method' => 'POST',
'header' => 'Content-type: application/x-www-form-urlencoded',
'content' => $postdata
)
);
$context = stream_context_create($opts);
$result = file_get_contents('http://example.com/submit.php', false, $context);
?>
示例 #2 忽略重定向並獲取 header 和內容
<?php
$url = "http://www.example.org/header.php";
$opts = array('http' =>
array(
'method' => 'GET',
'max_redirects' => '0',
'ignore_errors' => '1'
)
);
$context = stream_context_create($opts);
$stream = fopen($url, 'r', false, $context);
// header 資訊和 stream 的後設資料一樣
var_dump(stream_get_meta_data($stream));
// $url 的實際數據
var_dump(stream_get_contents($stream));
fclose($stream);
?>
註釋
注意: 底層 socket stream 上下文選項
Additional context options may be supported by the underlying transport Forhttp://streams, refer to context options for thetcp://transport. Forhttps://streams, refer to context options for thessl://transport.
注意: HTTP 狀態行
When this stream wrapper follows a redirect, thewrapper_datareturned by stream_get_meta_data() might not necessarily contain the HTTP status line that actually applies to the content data at index0.第一個請求返回array ( 'wrapper_data' => array ( 0 => 'HTTP/1.0 301 Moved Permanently', 1 => 'Cache-Control: no-cache', 2 => 'Connection: close', 3 => 'Location: http://example.com/foo.jpg', 4 => 'HTTP/1.1 200 OK', ...301（永久重定向）， 因此 stream 包裝器自動跟隨重定向到獲得200響應（index =4）。