/**
* Returns the first property of an object that is available.
*
* See <ifnull> for a detailed description as this works the same way.
* Difference is that this only checks against null but also if a value is set (weak comparison against false).
* @return mixed The first set value or null of none found
*/
function ifavail()
{
$args = func_get_args();
$data = array_shift($args);
if (count($args) == 0) {
ScavixWDF\WdfException::Raise("ifavail needs at one argument");
}
if (is_array($data)) {
$data = (object) $data;
}
if (!is_object($data)) {
foreach (func_get_args() as $arg) {
if ($arg) {
return $arg;
}
}
return null;
}
foreach ($args as $n) {
if (avail($data, $n)) {
return $data->{$n};
}
}
return null;
}
function forcedMove(&$numbers, &$backup, $type)
{
foreach ($numbers as $pos => $item) {
if (!is_array($item)) {
continue;
}
$options = [avail($item)];
$posList = $type($pos);
foreach ($posList as $pos2) {
if ($pos2 == $pos) {
continue;
}
if (!is_array($numbers[$pos2])) {
continue;
}
$options[] = avail($numbers[$pos2]);
}
if (count($options) < 2) {
$numbers = $backup;
$backup = null;
return true;
}
$mustBeHere = call_user_func_array('array_diff', $options);
if (count($mustBeHere) == 1) {
fill($pos, reset($mustBeHere));
return true;
}
}
return false;
}
