Supported Versions: PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8
Finds whether a variable is null
<?php is_null(mixed $value): bool<?php public function config($key = null, $default = null)
{
if (is_null($key)) {
return $this->config;
}<?php $config = $this->getConfig($driver);
if (is_null($config)) {
throw new InvalidArgumentException($this->invalidImplementationMessage($driver));
}<?php {
$value = Arr::get($this->meta(), $key);
if (! is_null($value)) {
return $value;
}<?php public function model(Model $model = null)
{
if (is_null($model)) {
return $this->model;
}<?php public function roles($roles = null)
{
return is_null($roles)
? $this->getRoles()
: $this->setRoles($roles);
}<?php public function groups($groups = null)
{
return is_null($groups)
? $this->getGroups()
: $this->setGroups($groups);
}<?php protected function getOrSet($key, $value = null)
{
if (is_null($value)) {
return $this->get($key);
}<?php {
$value = $this->model()->$key;
return is_null($value) ? $default : $value;
}
public function value($key)<?php public function title(string $title = null)
{
if (is_null($title)) {
return $this->title;
}<?php public function permissions($permissions = null)
{
if (is_null($permissions)) {
return $this->permissions;
}<?php public function roles($roles = null)
{
return is_null($roles)
? $this->getRoles()
: $this->set('roles', $roles);
}<?php public function groups($groups = null)
{
return is_null($groups)
? $this->getGroups()
: $this->setGroups($groups);
}<?php public function handle(string $handle = null)
{
if (is_null($handle)) {
return $this->handle;
}<?php ->merge($parts)
->flatten()
->reject(function ($part) {
return is_null($part);
})
->all();
}<?php public function throwOnFailure($throwOnFailure = null)
{
$this->throwOnFailure = is_null($throwOnFailure)
? true
: $throwOnFailure;