Document mailing list options

Update ML instruction

Update ML instructions

Update with new email addresses for subscribe/unsubscribe

Enhancement: Enable `trailing_comma_in_multiline` fixer (#647)

* Enhancement: Enable and configure trailing_comma_in_multiline fixer

* Fix: Run 'make coding-standards'

Enhancement: Enable `binary_operator_spaces` fixer

Closes GH-667.

Enhancement: Enable and configure `concat_space` fixer

Closes GH-657.

Enhancement: Enable `array_syntax` fixer

Co-authored-by: MathiasReker <mathias@reker.dk>

Closes GH-659.

Enhancement: Enable `constant_case` fixer

Co-authored-by: MathiasReker <mathias@reker.dk>

Closes GH-660.

Enhancement: Enable `array_indentation` fixer

Closes GH-634.

Use elseif instead of else if

Closes GH-534.

Add void return types

Add void return type to functions with missing or empty return statements.

Closes GH-535.

No spaces inside parenthesis

For consistency with the rest of the code.

Closes GH-551.

Change <a name="..."> to <a id="...">

PhpStorm flagged @name as a deprecated HTML attribute, so it seemed appropriate to change then to @id. In cases where there were both a @name and @id at

Change <a name="..."> to <a id="...">

PhpStorm flagged @name as a deprecated HTML attribute, so it seemed appropriate to change then to @id. In cases where there were both a @name and @id attribute and their values were the same, this commit removes the @name attribute (there were no cases where both @name and @id attributes existed but having different values.)

Closes GH-416.

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Change mailing list submit URL to use HTTPS

The mailing list URL "http://main.php.net/entry/subscribe.php" was not using "https://main.php.net/entry/subscribe.php" and thus was failing.

Change mailing list submit URL to use HTTPS

The mailing list URL "http://main.php.net/entry/subscribe.php" was not using "https://main.php.net/entry/subscribe.php" and thus was failing.

Closes GH-426.

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Display an error if no mailing list is selected (#392)

Change mailing list rules link (#402)

This updates the mailing list rules link to the Github URL instead of the raw file. The reasoning for it is that the raw file does not include markdown

Change mailing list rules link (#402)

This updates the mailing list rules link to the Github URL instead of the raw file. The reasoning for it is that the raw file does not include markdown formatting, which decreases readability, and defeats the purpose of the rules as a markdown file.

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Remove references to master.php.net

Replace references to git.php.net

Document email based subscription

Swap uses of _SERVER[DOCUMENT_ROOT] for __DIR__

1/n - Update / and /include/ only.

Remove dead code

Update mailing list rules URL

The file's location was changed in php-src (commit 8346b4c, PR 3988), so
update the mailing lists page on the site to reflect that.

add list email addresses to mailing lists page

Refactor each() function to foreach()

The each() function has been deprecated since PHP 7.2 and shouldn't be
used anymore:
- http://php.net/manual/en/function.each.php