#NotNULL Series - Twig

Greetings, habrasoobschestvo!

For a long time I abandoned the translations of those. Objective-C / Swift literature and several untranslated chapters from Core Data are far from being drafted. However, the love for translations, development and training has not faded away - the approach has changed and thoughts about how to pack and organize all this.

I fell in love with the format of the instructional videos.

By a certain coincidence, the topic with which I would like to start this experiment relates to the symfony + Twig bundle. More specifically - Twig itself.
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The structure of the training course:

Chapter 1: Basics

• Separator {# … #}
• Separator {{ … }}
• Separator {% … %}

Chapter 2: Operators

• Mathematical (+, -, /,%, //, *, **)
• Comparisons (==,! =, <,>, <=,> =, ===, starts with, ends with, matches)
• Boolean (and, or, not)
• Other + is, in (.., |, ~,., [],?:, ??)

Chapter 3: Tags, tests

• set
• do
• if
• constant
• defined
• divisibleby
• empty
• even
• iterable
• null
• odd
• same as
• for
• autoescape, verbatim
• block
• filter, spaceless
• extends
• include with
• import, macro, from
• embed
• flush
• sandbox

Chapter 4: Filters

• abs, round
• batch
• capitalize, lower, title, upper
• convert_encoding
• date, date_modify
• default
• escape, nl2br, raw, striptags
• first, last
• format, number_format
• join , merge, reverse, slice, sort, split
• json_encode
• keys
• length
• replace trim
• url_encode

Chapter 5: Functions

• attribute
• block parent
• constant
• cycle
• date
• dump
• include, source, template_from_string
• max, min, random, range

Introductory:


I use:

• PhpStorm 2017
• Symfony 4
• Twig 2
• PHP built-in-server
• Mac OS High Sierra
• Firefox quantum

Features:

• Communication on "you."
• Learning by example.
• Question-answer format (and what will happen if? And how it will work? And how to do it?)

Each subsequent video will be added to this topic - with links to the corresponding chapter and sub-topic, and the entire video course will be located in this playlist on YouTube .

The result of completing this course should be a successful official Twig certification .

I am sure that a certain part of the community is already familiar with such a publisher - Lynda.com ( development courses ), the format of which is extremely close to me. In the Russian-speaking segment there are gaps in the diversity of the proposed training formats, so I would like to fill one of these gaps, with active help and feedback from the Habrasoobschestva.