(PHP 5 >= 5.3.0)
stream_context_get_params — Retrieves parameters from a context
Retrieves parameter and options information from the stream or context.
Returns an associate array containing all context options and parameters.
Example #1 stream_context_get_params() example
Basic usage example
<?php
$ctx = stream_context_create();
$params = array("notification" => "stream_notification_callback");
stream_context_set_params($ctx, $params);
var_dump(stream_context_get_params($ctx));
?>
以上例程的输出类似于：
array(2) {
["notification"]=>
string(28) "stream_notification_callback"
["options"]=>
array(0) {
}
}