Enhancement: Enable `array_syntax` fixer

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

Closes GH-659.

Enhancement: Enable `no_extra_blank_lines` fixer

Closes GH-646.

Enhancement: Enable `indentation_type` fixer

Closes GH-622.

Micro Optimizations - Round #2

* .gitignore: Remove redundant entry

* Minor optimizations with ternary operators

* Use `const` instead of `define()` where appropriate

Micro Optimizations - Round #2

* .gitignore: Remove redundant entry

* Minor optimizations with ternary operators

* Use `const` instead of `define()` where appropriate

`const` is quite faster because of the compile-time optimizations. Because the replaced statements are not declaring constant conditionally, it's safe to use `const` in all of these places.

Closes GH-608.

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Add void return types

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

Closes GH-535.

Sync final and leading newlines

This patch adds some missing newlines, trims some multiple redundant
final newlines into a single one, and trims few redundant leading
newlines.

Sync final and leading newlines

This patch adds some missing newlines, trims some multiple redundant
final newlines into a single one, and trims few redundant leading
newlines.

According to POSIX, a line is a sequence of zero or more non-'<newline>'
characters plus a terminating '<newline>' character. [1] Files should
normally have at least one final newline character.

C89 [2] and later standards [3] mention a final newline:
"A source file that is not empty shall end in a new-line character,
which shall not be immediately preceded by a backslash character."

Although it is not mandatory for all files to have a final newline
fixed, a more consistent and homogeneous approach brings less of commit
differences issues and a better development experience in certain text
editors and IDEs.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
[2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2
[3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2

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logo.php: Check if QUERY_STRING is set before using it

Fixes a PHP Notice introduced in 0df71ff798c722f3.

Remove oldschool logos and running elephpant

There have been many complaints about them.

Move the Not Modified checks to the top. Also move other code
around so definitions are

Remove oldschool logos and running elephpant

There have been many complaints about them.

Move the Not Modified checks to the top. Also move other code
around so definitions are a bit closer to where they are used.
This is why the diff looks messy.

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Prefer SVG logo over PNG; serve .gz if possible

Decreased elephpant frequency; also optimized the image.

To lazy to automate this

Missing now check

Reduce the chances even further to make these even more special

"z" starts at 0. And $now = $_SERVER["REQUEST_TIME"] already

Add a way to avoid the cache

Thats a little to frequent.. roll it back to 60 seconds plus shuffle

Add more possible logos and increase the chances of showing them

Make sure we have a query string

Add the qa.php.net logo

Almost always use the new xmas logo

Add a xmas logo by Christy Raju

Set the timezone

Remove an used file & improve the logo scale