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<stream_context_createstream_context_get_options>
Last updated: Mon, 16 Jul 2012

stream_context_get_default

(PHP 5)

stream_context_get_default -- Retreive the default streams context

Description

resource stream_context_get_default ( [array options] )

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().

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

例子 1. Using stream_context_get_default()

<?php
$default_opts
= array(
 
'http'=>array(
  
'method'=>"GET",
  
'header'=>"Accept-language: en\r\n" .
            
"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\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(), and Listing of supported wrappers with context options (附录 L).




<stream_context_createstream_context_get_options>
 Last updated: Mon, 16 Jul 2012
 
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