The value is the escaping strategy (can be html, js, ...)

The true value is equivalent to html.

If autoescaping is disabled, then the value is false.

For instance, when there is a simple Print statement, like {{ article }}, and if the sandbox is enabled, we need to check that the __toString() method is allowed if 'article' is an object. The same goes for {{ article|upper }} or {{ random(article) }}

When there is a simple Print statement, like {{ article }}, and if the sandbox is enabled, we need to check that the __toString() method is allowed if 'article' is an object.

Not used anymore, to be deprecated in 2.x and removed in 3.0

It removes spaces between HTML tags.

{% if post.status is constant('Post::PUBLISHED') %} the status attribute is exactly the same as Post::PUBLISHED {% endif %}

{% if loop.index is divisible by(3) %}

{{ var is even }}

{{ var is none }}

{{ var is odd }}

{{ var.foo|default('foo item on var is not defined') }}