Templating

October extends the Twig template language (opens new window) with a number of functions, tags, filters and variables. These extensions allow you to use the CMS features and access the page environment information inside your templates.

# Variables

Template variables are printed on the page using double curly brackets.

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Variables can also represent expressions.

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Variables can be concatenated with the ~ character.

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October provides global variables under the this variable, as listed under the Variables section.

# Tags

Tags are a unique feature to Twig and are wrapped with {% %} characters.

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Tags provide a more fluent way to describe template logic.

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    Stay inside
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    Go outside and play
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The {% set %} tag can be used to set variables inside the template.

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Tags can take on many different syntaxes and are listed under the Tags section.

# Filters

Filters act as modifiers to variables for a single instance and are applied using a pipe symbol followed by the filter name.

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Filters can take arguments like a function.

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Filters can be applied in succession.

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Filters are listed under the Filters section.

# Functions

Functions allow logic to be executed and the return result acts as a variable.

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Functions can take arguments.

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Functions are listed under the Functions section.

# Access logic

1. Check if foo is an array and bar a valid element.
2. If not, and if foo is an object, check that bar is a valid property.
3. If not, and if foo is an object, check that bar is a valid method (even if bar is the constructor - use __construct() instead).
4. If not, and if foo is an object, check that getBar is a valid method.
5. If not, and if foo is an object, check that isBar is a valid method.
6. If not, return a null value.

# Unsupported features

There are some features offered by Twig that are not supported by October. They are listed below next to the equivalent feature.