CODEWITHSUNDEEP
phpscopeyii2
Arthur
Arthur

Reputation: 3473

PHP - Yii2 variable scope

I have simple PHP code like this:

<?php

namespace app\controllers;

use Yii;
use yii\web\Controller;
use app\models\bvh\BvhFiles;
use app\models\bvh\BvhCategories;

class BvhController extends Controller {

    public function actionView($id) {

//        $cache = $cache = Yii::$app->getCache();

        $BvhFile = BvhFiles::getDb()->cache(function ($db) {
            return BvhFiles::find()->where(['OR', 'id=' . $id, 'YoutubeId=' . $id])->one();
        });

But it's not work. It fails with

PHP Notice – yii\base\ErrorException

Undefined variable: id

at

 return BvhFiles::find()->where(['OR', 'id=' . $id, 'YoutubeId=' . $id])->one();

How should I pass $id variable to this code?

Thank you!

Upvotes: 1

Views: 373

Answers (2)

soju
soju

Reputation: 25312

You should simply try this :

$BvhFile = BvhFiles::getDb()->cache(function ($db) use ($id) {
    return BvhFiles::find()->where(['OR', 'id=' . $id, 'YoutubeId=' . $id])->one();
});

Read more about anonymous function and how to use variables from the parent scope.

And you should use this (read more) :

return BvhFiles::find()->where(['OR', ['id' => $id], ['YoutubeId' => $id]])->one();

Upvotes: 2

Damien Pirsy
Damien Pirsy

Reputation: 25435

That's a problem not related to Yii, but to php itself. If you want to pass a variable down to an anonymous function you need to use the use keyword:

$BvhFile = BvhFiles::getDb()->cache(function ($db) use($id) {
    return BvhFiles::find()->where(['OR', 'id=' . $id, 'YoutubeId=' . $id])->one();
});

Upvotes: 1

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