Twig template static method

Unique pages may inherit the base about or not a blog or landing page , but any can inherit single-purpose templates. Regarding organization, PHParch continues, "This is vital if we want to keep DRY: we should be able to define, for instance, an element once in our templates and refer to it from everywhere else.

These shared template resources usually end up in a special folder like partial. The linked article above's author, Gert Wijnalda, and company, RedAnt "developed Twig Components and the accompanying Twig Components bundle for Symfony , both installable through Composer. Gert continues: "there needs to be a consistent way to route code results to Twig.

Twig utilizes tags, filters, and functions, and it also has tests and operators. You can reference the entire list here. You are familiar with tags from HTML. For example, you've likely used import, include, embed, or cache. Two of the most useful for building your Twig layouts, according to SymfonyCasts are: "the extends and block tags.

When we use extends, it says that this template should be placed inside of a layout. But Twig is a bit dumb: it doesn't know where to put the content from another template. The block tag fixes that. By putting a block body in the layout and a block body around our homepage content, Twig knows exactly where the content should live in the layout. Extends pulls in your parent template the one being extended into a child template. Content that is outside of the blocks defined in your parent template will not be allowed in your child template.

In an article for Electric Citizen , Adam Fuchs explains: " Include also inherits content of a file, but also allows variables from the current template to replace those from the parent template. Include also differs from extends in that template you include is included directly where the call is placed in the child.

Think of it this way—extends is like bringing a parent template into a child template and changing some of the parent's content inside the child. Include brings a child template into a parent by inserting the entire child template at a specific point.

You could also insert an entire parent into a child and replace variables but not content. Read that again if you need to. I did. If you're using Twig inside something like Symfony or Drupal even more functions are available. To see them scroll down on the reference list link above. You can use the dump function can be for debugging. You can write your own Twig functions as Macros. Fuchs notes: "Macros can be defined anywhere in your Twig template structure.

So one strategy is to define them inside the template you are going to use them in or in the top-level template of that group. For instance, a macro to build a specific block structure may be defined in block. A better strategy might be to define all of the macros in one file that is not used anywhere on the site. Again via SymfonyCasts : "Macros can be a huge tool when you're building some reusable functionality.

In some ways, using a macro is similar to using the include function. Both allow you to move markup and logic into a separate place and then use it. The biggest advantage of a macro is that it's very clear what variables you need to pass to it.

But like with the include function, macros can also live in totally different files. Twig Filters provide particular functionality. Examples include working with currency, time and dates, encoding, and much more. You can use default filters with your variables and expressions to further control the results.

A pipe always precedes twig filters. Both functions and filters can have arguments. Twig is quite extensible. You can even extend the parser itself with node visitors. Twig also has internals. They are a bit above my coding experience so I will just quote the documentation.

Keep in mind that you should probably try to create an extension before hacking the core, as most features and enhancements can be handled with extensions. Like Symfony, Twig has recipes. Again, consult the docs for detailed explanations. As you can see there is much more to Twig that you can explore through the documentation.

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Never, ever will we share any information with a third party or use it to market to you. I agree. What's in this article for you? You will discover Twig's history and what the language is. You will see why you should use it. You will begin learning how to use it. What is Twig? And according to the official documentation : "Twig is both designer and developer-friendly by sticking to PHP's principles and adding functionality useful for templating environments. The overhead compared to regular PHP code was reduced to the very minimum.

Secure: Twig has a sandbox mode to evaluate untrusted template code. What is "within the scope of wherever you're twig" that you referring? Whatever file is rendering your twig template. Add that code in just before the render. You mean my controller just right before I call render? I've added an example of an extension I had to write for twig in one of my projects to convert currencies. Show 3 more comments. Bramus Bramus 1, 13 13 silver badges 17 17 bronze badges.

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