stream_context_set_default()
(PHP 5 >= 5.3.0, PHP 7)
Set the default stream context
说明
stream_context_set_default(array $options): resource
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 asstream_context_create().
参数
- $options
The options to set for the default context.
Note:
$optionsmust be an associative array of associative arrays in the format$arr['wrapper']['option']=$value.
返回值
Returns the default stream context.
范例
Example #1stream_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).