################################# Writing CodeIgniter Documentation #################################

CodeIgniter uses Sphinx to generate its documentation in a variety of formats, using reStructuredText_ to handle the formatting. If you are familiar with Markdown or Textile, you will quickly grasp reStructuredText. The focus is on readability and user friendliness. While they can be quite technical, we always write for humans!

.. _reStructuredText: https://www.sphinx-doc.org/en/master/usage/restructuredtext/basics.html

.. contents:: :local:

Tools Required

To see the rendered HTML, ePub, PDF, etc., you will need to install Sphinx along with the PHP domain extension for Sphinx. The underlying requirement is to have Python installed.

You can read more about installing all tools in user_guide_src/README.rst

Table of Contents

A local table of contents should always be included, like the one below. It is created automatically by inserting the following::

.. contents::
    :local:
    :depth: 2

Page and Section Headings and Subheadings

Headings not only provide order and sections within a page, but they also are used to automatically build both the page and document table of contents. Headings are formed by using certain characters as underlines for a bit of text. Major headings, like page titles and section headings also use overlines. Other headings just use underlines, with the following hierarchy::

# with overline for page titles
* with overline for major sections
= for subsections
- for subsubsections
^ for subsubsubsections
" for subsubsubsubsections (!)

The :download:TextMate ELDocs Bundle <./ELDocs.tmbundle.zip> can help you create these with the following tab triggers::

title->

    ##########
    Page Title
    ##########

sec->

    *************
    Major Section
    *************

sub->

    Subsection
    ==========

sss->

    SubSubSection
    -------------

ssss->

    SubSubSubSection
    ^^^^^^^^^^^^^^^^

sssss->

    SubSubSubSubSection (!)
    """""""""""""""""""""""

References

To a Section

If you need to link to a specific section, the first you add the label before a header::

.. _curlrequest-request-options-headers:

headers
=======

And then you can reference it like this::

See :ref:`CURLRequest Class <curlrequest-request-options-headers>` for how to add.

See :ref:`curlrequest-request-options-headers` for how to add.

To a Section in the Page

You can reference a section in the current page like the following::

 See `Result Rows`_

To a Page

You can reference a page like the following::

See :doc:`Session <../libraries/sessions>` library

See :doc:`../libraries/sessions` library

To a URL

::

`CodeIgniter 4 framework <https://github.com/codeigniter4/framework>`_

To a Function

::

:php:func:`dot_array_search()`

To a Method

::

:php:meth:`CodeIgniter\\HTTP\\Response::setCookie()`

Other Directives

New Feature

::

.. versionadded:: 4.3.0

Deprecated

::

.. deprecated:: 4.3.0
   Use :php:meth:`CodeIgniter\\Database\\BaseBuilder::setData()` instead.

Text Decoration

As a general rule, we use ** for in-line file paths, and `````` for source code.

E.g.::

Open the **app/Config/Filters.php** file and update the ``$methods`` property like the following:

Code Block

CLI Command

::

.. code-block:: console

    php spark migrate