sapi_windows_generate_ctrl_event

Description

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

Parameters

event

The CTRL event 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.

Return Values

Success

Examples

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]);
}
?>

See Also

• proc_open()
• sapi_windows_set_ctrl_handler()