Retrieve the default stream context

# stream_context_get_default

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

stream_context_get_default — Retrieve the default stream context

### Description

stream_context_get_default(?array `$options` = `null`): resource

Returns the default stream context which is used whenever file operations (fopen(), file_get_contents(), etc...) are called without a context parameter. Options for the default context can optionally be specified with this function using the same syntax as stream_context_create().

### Parameters

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

### Return Values

A stream context resource.

### Changelog

Version | Description
--- | ---
8.0.0 | `options` is now nullable.

### Examples

Example #1 Using stream_context_get_default()

`<?php
$default_opts = [
'http' => [
'method' => "GET",
'header' => "Accept-language: en\r\n" .
"Cookie: foo=bar",
'proxy' => "tcp://10.54.1.39:8000",
]
];
$alternate_opts = [
'http' => [
'method' => "POST",
'header' => "Content-type: application/x-www-form-urlencoded\r\n" .
"Content-length: " . strlen("baz=bomb"),
'content' => "baz=bomb",
]
];
$default = stream_context_get_default($default_opts);
$alternate = stream_context_create($alternate_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');
/* Sends a POST request directly to www.example.com
* Using context options specified in $alternate_opts
*/
readfile('http://www.example.com', false, $alternate);
?>`

### See Also

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

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