Stream Functions
PHP Manual

stream_context_get_default

Retrieve the default stream context

Description

resource stream_context_get_default(arraynull $options = null)

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