(PHP 7 >= 7.4.0)
sapi_windows_set_ctrl_handler — Set or remove a CTRL event handler
sapi_windows_set_ctrl_handler ( callable $callable [, bool $add = true ] ) : bool
Sets or removes a CTRL event handler, which allows Windows CLI processes to intercept or ignore CTRL+C and CTRL+BREAK events. Note that in multithreaded environments, this is only possible when called from the main thread.
callable
A callback function to set or remove. If set, this function will be called whenever a CTRL+C or CTRL+BREAK event occurs. The function is supposed to have the following signature:
handler ( int $event ) : void
event
CTRL event which has been received; either PHP_WINDOWS_EVENT_CTRL_C or PHP_WINDOWS_EVENT_CTRL_BREAK. null callable causes the process to ignore CTRL+C events, but not CTRL+BREAK events. add
If true, the handler is set. If false, the handler is removed.
Returns true on success or false on failure.
Example #1 Basic sapi_windows_set_ctrl_handler() Usage
This example shows how to intercept CTRL events.
<?php
function ctrl_handler(int $event)
{
switch ($event) {
case PHP_WINDOWS_EVENT_CTRL_C:
echo "You have pressed CTRL+C\n";
break;
case PHP_WINDOWS_EVENT_CTRL_BREAK:
echo "You have pressed CTRL+BREAK\n";
break;
}
}
sapi_windows_set_ctrl_handler('ctrl_handler');
while (true); // infinite loop, so the handler can be triggered
?>
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https://www.php.net/manual/en/function.sapi-windows-set-ctrl-handler.php