sapi_windows_generate_ctrl_event

(PHP 7 >= 7.4.0)

sapi_windows_generate_ctrl_eventSend a CTRL event to another process

Descrizione

sapi_windows_generate_ctrl_event ( int $event [, int $pid = 0 ] ) : bool

Sends a CTRL event to another process in the same process group.

Elenco dei parametri

event

The CTRL even to send; either PHP_WINDOWS_EVENT_CTRL_C or PHP_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.

Valori restituiti

Restituisce TRUE in caso di successo, FALSE in caso di fallimento.

Esempi

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$descspec$pipesnullnull$options);
while (
true) {
    echo 
fgets($pipes[1]);
}
?>

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