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)
(PHP 5 >= 5.3.0, PHP 7)
stream_context_get_params — Retrieves parameters from a context
$stream_or_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) {
}
}
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)