Yii2 Pjax无法正常工作，重新加载整个页面

Question

When a file_get_contents($url) is used inside a action and when that action is loaded using Pjax, the entire page reloads.

In controllers/SiteController.php

public function actionAbout()
{
    $url = 'http://api.dar.fm/topsongs.php?q=Music&page_size=20';
    $xml = file_get_contents($url);

    Yii::$app->view->params['xmldata'] = $xml;
    return $this->render('about');
}

In layouts/main.php

<?php Pjax::begin(); ?>
   <a href="/yiidev/web/index.php?r=site/home">Home</a> 
   <a href="/yiidev/web/index.php?r=site/about">About</a>
   <a href="/yiidev/web/index.php?r=site/contact">Contact us</a>  
<?php Pjax::end(); ?>

For Home and Contact link, only the area between pjax begin() and end() is updated but for About link the entire page reloads.

If i remove the file_get_contents() call from from actionAbout() the page reload is not happening. I believe the problem is something related to getting contents from external url using file_get_contents()

Answer 1

The issue was due to ajax timeout. file_get_contents() took more time to execute, as it was reading a external url and timeout happens. The issue was resolved by increasing timeout vaue as below.

Pjax::begin(['timeout' => 5000 ]);

Refer https://github.com/yiisoft/yii2/issues/8819