> For the complete documentation index, see [llms.txt](https://cherrycake.tin.cat/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cherrycake.tin.cat/version-1.x-beta/guide/patterns-guide/passing-variables-to-a-pattern.md). # Passing variables to a pattern We can pass variables to be used inside a pattern via the `variables` setup key in the [Patterns::out](/version-1.x-beta/reference/core-modules/patterns/methods.md#out) or the [Patterns::parse](/version-1.x-beta/reference/core-modules/patterns/methods.md#parse) call. Imagine our `helloworld.html` file looks like this: ```markup

Here's a gift for you: 🧁

``` But we want the gift emoji to be passed as a variable to the pattern to be able to pass a different one each time we make the call to [Patterns::out ](/version-1.x-beta/reference/core-modules/patterns/methods.md#out)or [Patterns::parse](/version-1.x-beta/reference/core-modules/patterns/methods.md#parse). To do so, first we replace the emoji in the `helloworld.html` file with a PHP statement that simply echoes the variable `$emoji`, like this: ```markup

Here's a gift for you:

``` > Note that, to use PHP code inside a pattern, we need to enclose it in PHP's opening and closing tags: ``. In this case, however, we use the shorthand `` which is a shortcut for the more verbose `` And now, in our call to[ Patterns::out](/version-1.x-beta/reference/core-modules/patterns/methods.md#out), we pass `emoji` as a variable: ```php $e->Patterns->out("helloworld.html", [ "variables" => [ "emoji" => "🧸" ] ]); ``` So now, the browser shows this: ```markup Here's a gift for you: 🧸 ``` {% hint style="success" %} See this example working in the [Cherrycake documentation examples](https://documentation-examples.cherrycake.io/example/patternsGuidePassingVariables) site. {% endhint %} --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://cherrycake.tin.cat/version-1.x-beta/guide/patterns-guide/passing-variables-to-a-pattern.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.