The List of the 10 Most Common Mistakes That PHP Developers Make | Toptal
![Variables placed in email body not being replaced with actual value [#3056302] | Drupal.org](https://www.drupal.org/files/issues/2019-05-22/email_received.png "Variables placed in email body not being replaced with actual value [#3056302] | Drupal.org")
Variables placed in email body not being replaced with actual value [#3056302] | Drupal.org
Setting and Clearing Custom Cache Tags in Drupal 8 | Pantheon Docs
![Only variables should be passed by reference [#1614450] | Drupal.org](https://www.drupal.org/files/Screen%20shot%202012-06-02%20at%204.39.45%20PM.png "Only variables should be passed by reference [#1614450] | Drupal.org")
Only variables should be passed by reference [#1614450] | Drupal.org
Drupal 8 & SimpleSAMLPHP Library – TA Digital Labs
Ajax Testing in Drupal 8 | Phase2 Technology
Drupal 8 Services, Dependency Injection, and Decoupling Your Code | FFW
End to End Testing With Drupal and Cypress - Blog - Sevaa Group
Varnish for Drupal 8 | Dropsolid.io
How to Use Entity Reference Views in Drupal 8
Drupal 8 Theming Fundamentals, Part 2 | Lullabot
Filter Entity Reference View with dynamic arguments from Reference Field - Stack Overflow
Configuring Gitlab to run Drupal Test Traits for your Drupal 8 site | Axelerant
![Strict warning: Only variables should be passed by reference [#2892182] | Drupal.org](https://www.drupal.org/files/issues/drupal_8.jpg "Strict warning: Only variables should be passed by reference [#2892182] | Drupal.org")
Strict warning: Only variables should be passed by reference [#2892182] | Drupal.org
![The reference view cannot be found' message is shown when the view exists and can be configured normally [#3062155] | Drupal.org](https://www.drupal.org/files/issues/2019-06-17/Screenshot%202019-06-17%20at%2012.38.18%20PM.png "The reference view cannot be found' message is shown when the view exists and can be configured normally [#3062155] | Drupal.org")
The reference view cannot be found' message is shown when the view exists and can be configured normally [#3062155] | Drupal.org
Code reference information | PhpStorm
Drupal 8 core and Symfony components | ADCI Solutions
Drupal 8 core and Symfony components | ADCI Solutions
![Only variables should be passed by reference [#1329200] | Drupal.org](https://www.drupal.org/files/submenutree_error.jpg "Only variables should be passed by reference [#1329200] | Drupal.org")
Only variables should be passed by reference [#1329200] | Drupal.org
Double Reference | Drupal.org
![Only variables should be passed by reference auto_entitylabel_set_title() [#2763941] | Drupal.org](https://www.drupal.org/files/styles/drupalorg_user_picture/public/user-pictures/picture-770374-1513430370.jpg?itok=b1hSYM1W "Only variables should be passed by reference auto_entitylabel_set_title() [#2763941] | Drupal.org")