This strategy sets the HTML as the default autoescaping strategy, but changes it based on the template name.

Note that there is no runtime performance impact as the default autoescaping strategy is set at compilation time.

It visits all nodes and their children and calls the given visitor for each.

This class is an implementation detail of how template compilation currently works, which might change. It should never be used directly. Use $twig->load() instead, which returns an instance of \Twig\TemplateWrapper.

To be removed in Twig 3.1.

This class is used by \Twig\Environment as a staging area and must not be used directly.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

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') }}

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

This exception class and its children must only be used when an error occurs during the loading of a template, when a syntax error is detected in a template, or when rendering a template. Other errors must use regular PHP exception classes (like when the template cache directory is not writable for instance).

To help debugging template issues, this class tracks the original template name and line where the error occurred.

Whenever possible, you must set these information (original template name and line number) yourself by passing them to the constructor. If some or all these information are not available from where you throw the exception, then this class will guess them automatically (when the line number is set to -1 and/or the name is set to null). As this is a costly operation, this can be disabled by passing false for both the name and the line number when creating a new instance of this class.

When using this loader with a cache mechanism, you should know that a new cache key is generated each time a template content "changes" (the cache key being the source code of the template). If you don't want to see your cache grows out of control, you need to take care of clearing the old cache file by yourself.

This loader should only be used for unit testing.

Note that the runtime services MUST use their class names as identifiers.

To be removed in Twig 3.1.

To be removed in Twig 3.1.

To be removed in Twig 3.1.

To be removed in Twig 3.1.

{% apply upper %} This text becomes uppercase {% endapply %}

{% autoescape true %} Everything will be automatically escaped in this block {% endautoescape %}

{% autoescape false %} Everything will be outputed as is in this block {% endautoescape %}

{% autoescape true js %} Everything will be automatically escaped in this block using the js escaping strategy {% endautoescape %}

{% block head %}

{% endblock %}

{% deprecated 'The "base.twig" template is deprecated, use "layout.twig" instead.' %} {% extends 'layout.html.twig' %}

{% include 'header.html' %} Body {% include 'footer.html' %}

{% extends "base.html" %}

{% filter upper %} This text becomes uppercase {% endfilter %}

{% for user in users %}
• {{ user.username|e }}
{% endfor %}

{% from 'forms.html' import forms %}

{% if users %}

{% for user in users %}
• {{ user.username|e }}
{% endfor %}

{% endif %}

{% import 'forms.html' as forms %}

{% include 'header.html' %} Body {% include 'footer.html' %}

{% macro input(name, value, type, size) %}

{% endmacro %}

{% sandbox %} {% include 'user.html' %} {% endsandbox %}

{% set foo = 'foo' %} {% set foo = [1, 2] %} {% set foo = {'foo': 'bar'} %} {% set foo = 'foo' ~ 'bar' %} {% set foo, bar = 'foo', 'bar' %} {% set foo %}Some content{% endset %}

{% spaceless %}

{% endspaceless %} {# output will be

{% extends "base.html" %}

{% use "blocks.html" %}

{% block title %}{% endblock %} {% block content %}{% endblock %}