&drupal_register_shutdown_function($callback = NULL)
Registers a function for execution on shutdown.
Wrapper for register_shutdown_function() that catches thrown exceptions to avoid "Exception thrown without a stack frame in Unknown".
Parameters
$callback: The shutdown function to register.
...: Additional arguments to pass to the shutdown function.
Return value
Array of shutdown functions to be executed.
See also
Related topics
- PHP wrapper functions
- Functions that are wrappers or custom implementations of PHP functions.
File
- core/includes/bootstrap.inc, line 956
- Functions that need to be loaded on every Drupal request.
Code
function &drupal_register_shutdown_function($callback = NULL) {
// We cannot use drupal_static() here because the static cache is reset during
// batch processing, which breaks batch handling.
static $callbacks = array();
if (isset($callback)) {
// Only register the internal shutdown function once.
if (empty($callbacks)) {
register_shutdown_function('_drupal_shutdown_function');
}
$args = func_get_args();
// Remove $callback from the arguments.
unset($args[0]);
// Save callback and arguments
$callbacks[] = array('callback' => $callback, 'arguments' => $args);
}
return $callbacks;
}
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