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php中文网手册 发布
(PHP 5 >= 5.3.0)
stream_context_get_params — Retrieves parameters from a context
$stream_or_context
)Retrieves parameter and options information from the stream or context.
stream_or_context A stream resource or a context resource
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) {
}
}
[#1] m dot staas at goowy dot com [2015-11-30 13:35:43]
Note that if the resource parameter is invalid the function will return a boolean with value false.
The code:
$r = null
$cert = stream_context_get_params($r);
var_dump($cert);
will return:
bool(false)