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
Descrierea
sapi_windows_generate_ctrl_event
( int
$event
, int $pid = 0
) : boolSends a CTRL event to another process in the same process group.
Parametri
-
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.
Valorile întoarse
Întoarce valoarea true în cazul
succesului sau false în cazul eșecului.
Exemple
Example #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]);
}
?>
A se vedea și
- 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
