stream_context_set_params

(PHP 4 >= 4.3.0, PHP 5, PHP 7)

stream_context_set_params — Set parameters for a stream/wrapper/context

stream_context_set_params ( resource $stream_or_context , array $params ) : bool

Sets parameters on the specified context.

stream_or_context: The stream or context to apply the parameters too.
params: An array of parameters to set.

Note:
params should be an associative array of the structure: $params['paramname'] = "paramvalue";.

Parameters	Purpose
notification	Name of user-defined callback function to be called whenever a stream triggers a notification. Only supported for http:// and ftp:// stream wrappers.
options	Array of options as in context options and parameters.

成功时返回 TRUE，或者在失败时返回 FALSE。

stream_notification_callback() - A callback function for the notification context parameter