php man page for stream_context_get_default

STREAM_CONTEXT_GET_DEFAULT(3)						 1					     STREAM_CONTEXT_GET_DEFAULT(3)

stream_context_get_default - Retrieve the default stream context

SYNOPSIS
       resource stream_context_get_default ([array  $options])

DESCRIPTION
	Returns  the  default  stream context which is used whenever file operations (fopen(3), file_get_contents(3), 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_con-
       text_create(3).

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

	      Note

		      As of PHP 5.3.0, the stream_context_set_default(3) function can be used to set the default context.

RETURN VALUES
	A stream context resource.

EXAMPLES
       Example #1

	      Using stream_context_get_default(3)

	      <?php
	      $default_opts = array(
		'http'=>array(
		  'method'=>"GET",
		  'header'=>"Accept-language: en
" .
			    "Cookie: foo=bar",
		  'proxy'=>"tcp://10.54.1.39:8000"
		)
	      );

	      $alternate_opts = array(
		'http'=>array(
		  'method'=>"POST",
		  'header'=>"Content-type: application/x-www-form-urlencoded
" .
			    "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(3), Listing of supported wrappers with context options ("Supported Protocols and Wrappers")..

PHP Documentation Group 											     STREAM_CONTEXT_GET_DEFAULT(3)