It's worth mentioning that passing an empty array will NOT reset default options.
<?php
stream_context_set_default(array()); // Does nothing.
?>
stream_context_set_default
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
stream_context_set_default — Set the default stream context
说明
Set the default stream context which will be used whenever file operations (fopen(), file_get_contents(), etc...) are called without a context parameter. Uses the same syntax as stream_context_create().
参数
-
options -
The options to set for the default context.
注意:
optionsmust be an associative array of associative arrays in the format$arr['wrapper']['option'] = $value.
返回值
Returns the default stream context.
示例
示例 #1 stream_context_set_default() example
<?php
$default_opts = array(
'http'=>array(
'method'=>"GET",
'header'=>"Accept-language: en\r\n" .
"Cookie: foo=bar",
'proxy'=>"tcp://10.54.1.39:8000"
)
);
$default = stream_context_set_default($default_opts);
/* Sends a regular GET request to proxy server at 10.54.1.39
* For www.example.com using context options specified in $default_opts
*/
readfile('http://www.example.com');
?>参见
- stream_context_create() - 创建资源流上下文
- stream_context_get_default() - Retrieve the default stream context
- Listing of supported wrappers with context options (支持的协议和封装协议).
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User Contributed Notes 1 note
Mahmoud Saeed ¶
3 years ago
