Set the default stream context

# stream_context_set_default

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

stream_context_set_default — Set the default stream context

### Description

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 as stream_context_create().

### Parameters

`options`

  The options to set for the default context.

  > Note:

  > `options` must be an associative array of associative arrays in the format `$arr['wrapper']['option'] = $value`.

### Return Values

Returns the default stream context.

### Examples

Example #1 stream_context_set_default() example

`<?php
$default_opts = [
'http' => [
'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');
?>`

### See Also

- stream_context_create() - Creates a stream context
- stream_context_get_default() - Retrieve the default stream context
- Listing of supported wrappers with context options (Supported Protocols and Wrappers).

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