How to call a function in a twig file?
For example *.html.twig, page.html.twig, node.html.twig etc. You can define your own custom Twig functions in a custom module (but not in a theme). To find an example for how to do this, see this example in core/modules/system/tests/modules/twig_extension_test/src/TwigExtension/TestExtension.php.
How does twig iterate over the properties of an object?
I would have expected Twig to iterate over the property values of the object taking the property names as keys. Instead, the instruction block contained in the for loop is not executed at all. You can first cast the object to array. You can build own filter casting your object to array.
How to pass a variable from PHP to twig?
How can I pass a variable from PHP to Twig and display in any Twig file. For example *.html.twig, page.html.twig, node.html.twig etc. You can define your own custom Twig functions in a custom module (but not in a theme).
Can a twig iterate over an associative array?
I read in the Twig documentation that it is possible to iterate over an associative array in the following manner: I was wondering whether this is possible for objects of type stdClass as well. I would have expected Twig to iterate over the property values of the object taking the property names as keys.
How to access PHP function from Twig template?
7 Answers 7. Its not possible to access any PHP function inside Twig directly. What you can do is write a Twig extension. A common structure is, writing a service with some utility functions, write a Twig extension as bridge to access the service from twig. The Twig extension will use the service and your controller can use the service too.
What can you do with a twig extension?
What you can do is write a Twig extension. A common structure is, writing a service with some utility functions, write a Twig extension as bridge to access the service from twig. The Twig extension will use the service and your controller can use the service too.