Trait yii\base\StaticInstanceTrait

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Implemented by	luya\admin\models\ApiUser, luya\admin\models\Auth, luya\admin\models\Config, luya\admin\models\Group, luya\admin\models\GroupAuth, luya\admin\models\Lang, luya\admin\models\Logger, luya\admin\models\LoginForm, luya\admin\models\NgrestLog, luya\admin\models\Property, luya\admin\models\ProxyBuild, luya\admin\models\ProxyMachine, luya\admin\models\QueueLog, luya\admin\models\QueueLogError, luya\admin\models\ResetPasswordChangeForm, luya\admin\models\ResetPasswordForm, luya\admin\models\Scheduler, luya\admin\models\SearchData, luya\admin\models\StorageEffect, luya\admin\models\StorageFile, luya\admin\models\StorageFilter, luya\admin\models\StorageFilterChain, luya\admin\models\StorageFolder, luya\admin\models\StorageImage, luya\admin\models\Tag, luya\admin\models\TagRelation, luya\admin\models\User, luya\admin\models\UserAuthNotification, luya\admin\models\UserChangePassword, luya\admin\models\UserDevice, luya\admin\models\UserGroup, luya\admin\models\UserLogin, luya\admin\models\UserLoginLockout, luya\admin\models\UserOnline, luya\admin\models\UserRequest, luya\admin\ngrest\base\NgRestModel, luya\base\DynamicModel, luya\cms\base\NavItemType, luya\cms\models\Block, luya\cms\models\BlockGroup, luya\cms\models\Config, luya\cms\models\Layout, luya\cms\models\Log, luya\cms\models\Nav, luya\cms\models\NavContainer, luya\cms\models\NavItem, luya\cms\models\NavItemModule, luya\cms\models\NavItemPage, luya\cms\models\NavItemPageBlockItem, luya\cms\models\NavItemRedirect, luya\cms\models\NavPermission, luya\cms\models\Property, luya\cms\models\Redirect, luya\cms\models\Theme, luya\cms\models\Website, yii\base\DynamicModel, yii\base\Model, yii\data\ActiveDataFilter, yii\data\DataFilter, yii\db\ActiveRecord, yii\db\BaseActiveRecord
Available since version	2.0.13
Source Code	https://github.com/yiisoft/yii2/blob/master/framework/base/StaticInstanceTrait.php

StaticInstanceTrait provides methods to satisfy yii\base\StaticInstanceInterface interface.

Public Methods

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Method	Description	Defined By
instance()	Returns static class instance, which can be used to obtain meta information.	yii\base\StaticInstanceTrait

Method Details

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instance() public static method

Returns static class instance, which can be used to obtain meta information.

public static static instance ( $refresh = false )
$refresh	boolean	Whether to re-create static instance even, if it is already cached.
return	static	Class instance.

Source code

                public static function instance($refresh = false)
{
    $className = get_called_class();
    if ($refresh || !isset(self::$_instances[$className])) {
        self::$_instances[$className] = Yii::createObject($className);
    }
    return self::$_instances[$className];
}