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sapi_windows_set_ctrl_handler

sapi_windows_set_ctrl_handler

Set or remove a CTRL event handler

bool **sapi_windows_set_ctrl_handler**  $handler bool $add

Sets or removes a event handler, which allows Windows CLI processes to intercept or ignore and events. Note that in multithreaded environments, this is only possible when called from the main thread. CTRL``CTRL+C``CTRL+BREAK

handler A callback function to set or remove. If set, this function will be called whenever a

  or
  
  event occurs.
  The function is supposed to have the following signature:
  
  
  Setting a null  causes the process to ignore
  
  events, but not
  
  events.
 ```php

void handler int $event


`event`
          The  event which has been received;
          either 
          or .
         `PHP_WINDOWS_EVENT_CTRL_C``PHP_WINDOWS_EVENT_CTRL_BREAK`

`handler`

`add`If true, the handler is set. If false, the handler is removed.

return.success

**Voorbeeld: Basic  Usage**


     This example shows how to intercept  events.
   `CTRL`

```php
<?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
?>

sapi_windows_generate_ctrl_event

Vorige ← sapi_windows_generate_ctrl_event Volgende sapi_windows_vt100_support →

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