Cache is not working

[Muhammad Shahzad]

Hi,

Cache is not woking in my app, I'm fetching some data from database then setting into f3 set after that whenever I tried to fetch that data it comes from database not from cache? what is the issue?


index.php

$f3->mset(array(
      ...
        "CACHE" => true,
...

Controller:

  public function index($f3) {

        $currencySymbols = \Helper\Master::getAllCurrencySymbolsCultureWise($f3);
        echo "<pre>";
        print_r($currencySymbols);
        exit;

\Helper\Master

 

/*
    * Get All currency symbols cultures wise
    * @Usage: \Helper\Master::getAllCurrencySymbolsCultureWise();
    */
    public function getAllCurrencySymbolsCultureWise($f3){
        //$f3 = \Base::instance();
        if($f3->exists('currencySymbols')){

            $rows = $f3->get('currencySymbols');
            $rows[]='Return from f3 cache';
         
        }else{
            $sql = "SELECT culture.cultureid, currency.symbol
                        FROM s_culture culture
                        INNER JOIN s_currency currency ON culture.currencyid = currency.currencyid";
            $rows = $f3->get('db.instance')
                    ->exec($sql);
            $rows[]='Return from fresh query';
            $f3->set('currencySymbols', $rows);
        }
        return $rows;
    }

It always print data 'Return from fresh query', there is an empty folder  tmp/cache, but nothing being stored in cache folder, any idea what am I doing wrong?

[ved]

At no point in your example code I see a $ttl parameter. So you're not using cache at all. You'd have to use something like:

$f3->set('currencySymbols', $rows, 600);  // cache for 600 seconds

Anyway, please read the documentation on caching where it's pretty well explained.

[Muhammad Shahzad]

Hi,

Thank you for your reply, can you pls tell me $ttl stands for?(abbreviation)

[ved]

Hi, it's an abbreviation for time-to-live. See here.

[Muhammad Shahzad]

Thank you for your cooperation.