Who Always Echo "1" For A Global Variable

Yii 1.1 General Discussion
1

hi experts,

I want to use global variable to store&read data in Yii.when I access the view.php,the readtimes will be incremented.but it always echo "1" when i access the view.php.

component:

readTimes.php:




  <?php

class ReadTimes extends CApplicationComponent{

	

    private static $readTimes=0;

	

	public static function incReadTimes(){

		self::$readTimes++;

	}

 

	public static function showReadTimes(){

		return self::$readTimes;

	}	

	

}

in main.php:




	'components'=>array(

		'readtime'=>array(

		    'class' => 'ReadTimes',		

		),

in PostController.php:




	public function actionView()

	{

		$post=$this->loadModel();

		$comment=$this->newComment($post);

		Yii::app()->readtime->incReadTimes();

		$this->render('view',array(

			'model'=>$post,

			'comment'=>$comment,

		));

	}

in view.php:




<?php echo Yii::app()->readtime->showReadTimes();?>
2

Try it as




class ReadTimes extends CApplicationComponent{

        

    private static $readTimes;

        

        public static function incReadTimes(){

            if (self::$readTimes== null){

            self::$readTimes=0;

             }

            self::$readTimes++;

        }

 

        public static function showReadTimes(){

                return self::$readTimes;

        }       

        

}
3

thanks for your reply.i use your code but it only echo ‘1’ when i refresh the view.php.I want to see where echo 1,2,3,4… when i refresh the view.php.

there is ReadTimes.php:

4

Each time you refresh the page you’re starting a brand new request and all of the classes are reinitialised. You need to store that value somewhere, probably in the database, if you want it to persist.

5

i want to store it on RAM. i knew that there is a application scope variable can do this,like asp,java.

it can use Application[‘myval’]=1.but php has no application scope valiable.so i want to know how to do it.can we only use cache to do this?

6

If you want use this variable only for each user, You can use session variable, in any other case You have to put this variable to db or some file

7

If you want it in RAM, you should look into using a caching mechanism like APC. This will of course be reset on system reboot or when the cache is purged.

8

thanks to all,I use CFileCache to resolve this problem,so I can’t setup MemCache.

ReadTimes.php




class ReadTimes{

        

        public static function incReadTimes(){

            $rs=Yii::app()->cache->get("app_readTimes");

            if($rs==null){

            	Yii::app()->cache->set("app_readTimes", "0");

            }else{

            	Yii::app()->cache->set("app_readTimes",$rs+1);

            }

        }

 

        public static function showReadTimes(){

             return Yii::app()->cache->get("app_readTimes");

        }       

        

}

in main.php:




		'cache'=> array(


				'class'=>'system.caching.CFileCache',


		),

in view.php:




<?php echo ReadTimes::showReadTimes();?>

in postController.php




ReadTimes::incReadTimes();