sapi_windows_generate_ctrl_event
(PHP 7 >= 7.4.0, PHP 8)
sapi_windows_generate_ctrl_event — Send a CTRL event to another process
Beschreibung
$event, int $pid = 0): boolSends a CTRL event to another process in the same process group.
Parameter-Liste
-
event -
The
CTRLeven to send; eitherPHP_WINDOWS_EVENT_CTRL_CorPHP_WINDOWS_EVENT_CTRL_BREAK. -
pid -
The ID of the process to which to send the event to. If
0is given, the event is sent to all processes of the process group.
Rückgabewerte
Gibt bei Erfolg true zurück. Bei einem Fehler wird false zurückgegeben.
Beispiele
Beispiel #1 Basic sapi_windows_generate_ctrl_event() Usage
This example shows how to pass along CTRL+BREAK events to a child
process. In this case the child process echoes I'm still alive
every second, until the user presses CTRL+BREAK, what causes
only the child process to be terminated.
<?php
// forward CTRL+BREAK events to the child process
sapi_windows_set_ctrl_handler('sapi_windows_generate_ctrl_event');
// create a child process which echoes every second
$cmd = ['php', '-r', 'while (true) { echo "I\'m still alive\n"; sleep(1); }'];
$descspec = array(['pipe', 'r'], ['pipe', 'w'], ['pipe', 'w']);
$options = ['create_process_group' => true];
$proc = proc_open($cmd, $descspec, $pipes, null, null, $options);
while (true) {
echo fgets($pipes[1]);
}
?>
Siehe auch
- proc_open() - Führt ein Kommando aus und öffnet Dateizeiger für die Ein- und Ausgabe
- sapi_windows_set_ctrl_handler() - Set or remove a CTRL event handler
