This function may produce a Warning:
sapi_windows_set_ctrl_handler(): CTRL events trapping is only supported on console in script.php..
It happens when script is started by "php-cgi.exe", so "php.exe -q" should be used instead.
While pressing CTRL+C don't expect the handler to run instantly, i've ran some curl request in a loop and found that handler runs when either response arrives or request finishes by timeout.
sapi_windows_generate_ctrl_event
(PHP 7 >= 7.4.0)
sapi_windows_generate_ctrl_event — Send a CTRL event to another process
Opis
sapi_windows_generate_ctrl_event
( int
$event
[, int $pid = 0
] ) : boolSends a CTRL event to another process in the same process group.
Parametry
-
event -
The CTRL even to send; either
PHP_WINDOWS_EVENT_CTRL_CorPHP_WINDOWS_EVENT_CTRL_BREAK. -
pid -
The ID of the process to which to send the event to. If 0 is given, the event is sent to all processes of the process group.
Zwracane wartości
Zwraca TRUE w przypadku powodzenia, FALSE w
przypadku błędu.
Przykłady
Przykład #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]);
}
?>
Zobacz też:
- proc_open() - Execute a command and open file pointers for input/output
- sapi_windows_set_ctrl_handler() - Set or remove a CTRL event handler
add a note
User Contributed Notes 1 note
Michael Q ¶
3 years ago
