$message
=
"Success."
;
$user_id
=
"1234567"
;
$request_params
=
array
(
'message'
=
>
$message
,
'user_id'
=
>
$user_id
,
'random_id'
=
>
rand
(
1000000000
,
9999999999
)
,
'access_token'
=
>
'тот самый ключ'
,
'v'
=
>
'5.45'
)
;
$get_params
=
http_build_query
(
$request_params
)
;
file_get_contents
(
"https://api.vk.com/method/messages.send?"
.
$get_params
)
;