Double Reference | Drupal.org
![Only variables should be passed by reference [#2973834] | Drupal.org](https://www.drupal.org/files/styles/drupalorg_user_picture/public/user-pictures/picture-1940068-1486167151.jpg?itok=2tls12W3 "Only variables should be passed by reference [#2973834] | Drupal.org")
Only variables should be passed by reference [#2973834] | Drupal.org
Drupal 9 Module Development - Third Edition | Packt
Drupal 8 core and Symfony components | ADCI Solutions
Ajax Testing in Drupal 8 | Phase2 Technology
Varnish for Drupal 8 | Dropsolid.io
![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
![Strict warning: Only variables should be passed by reference [#2149287] | Drupal.org](https://www.drupal.org/files/styles/drupalorg_user_picture/public/user-pictures/picture-1089344-1580143736.jpg?itok=VY-J3KE9 "Strict warning: Only variables should be passed by reference [#2149287] | Drupal.org")
Strict warning: Only variables should be passed by reference [#2149287] | Drupal.org
Drupal 8 core and Symfony components | ADCI Solutions
Code reference information | PhpStorm
![Strict warning: Only variables should be passed by reference in eval() [#2064265] | Drupal.org](https://www.drupal.org/files/Selection_099_0.png "Strict warning: Only variables should be passed by reference in eval() [#2064265] | Drupal.org")
Strict warning: Only variables should be passed by reference in eval() [#2064265] | Drupal.org
PHP: Only variables should be passed by reference - PHP Error - Mazz i Torch - The latest global technology multi-platform entertainment media
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The reference view cannot be found' message is shown when the view exists and can be configured normally [#3062155] | Drupal.org
How To Install Drupal with Docker Compose | DigitalOcean
![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
Setting and Clearing Custom Cache Tags in Drupal 8 | Pantheon Docs
PHP7: "Notice: Only variables should be passed by reference" - WPML
![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
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Only variables should be passed by reference auto_entitylabel_set_title() [#2763941] | Drupal.org
Drupal migrations reference: List of configuration options for source plugins | Understand Drupal
Setting and Clearing Custom Cache Tags in Drupal 8 | Pantheon Docs
![Strict warning: Only variables should be passed by reference [#2892182] | Drupal.org](https://www.drupal.org/files/issues/display1.PNG "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
![Strict warning: Only variables should be passed by reference [#2892182] | Drupal.org](https://www.drupal.org/files/issues/display2.PNG "Strict warning: Only variables should be passed by reference [#2892182] | Drupal.org")
Strict warning: Only variables should be passed by reference [#2892182] | Drupal.org
Reference field option limit | Drupal.org
