MO4 CodeSniffer ruleset

Provides a PHP CodeSniffer ruleset for the MO4 coding standard

MO4 Coding Standard

The MO4 Coding Standard is an extension of the Symfony Coding Standard and adds following rules:

MO4.Arrays.ArrayDoubleArrowAlignment

In associative arrays, the => operators must be aligned.
In arrays, the key and => operator must be on the same line.

MO4.Arrays.MultiLineArray

In multi line arrays, the opening bracket must be followed by newline.
In multi line arrays, the closing bracket must be in own line.
In multi line arrays, the elements must be indented.

MO4.Commenting.PropertyComment

doc blocks of class properties must be multiline and have exactly one @var annotation

MO4.Formatting.AlphabeticalUseStatements

use statements must be sorted lexicographically. The order function can be configured.

Configuration

The order property of the MO4.Formatting.AlphabeticalUseStatements sniff defines which function is used for ordering.

Possible values for order:

dictionary (default): based on strcmp, the namespace separator precedes any other character
```
use Doctrine\ORM\Query;
use Doctrine\ORM\Query\Expr;
use Doctrine\ORM\QueryBuilder;
```

string: binary safe string comparison using strcmp

use Doctrine\ORM\Query;
use Doctrine\ORM\QueryBuilder;
use Doctrine\ORM\Query\Expr;

use ExampleSub;
use Examples;

string-locale: locale based string comparison using strcoll
string-case-insensitive: binary safe case-insensitive string comparison strcasecmp
```
use Examples;
use ExampleSub;
```

To change the sorting order for your project, add this snippet to your custom ruleset.xml:

<rule ref="MO4.Formatting.AlphabeticalUseStatements">
    <properties>
        <property name="order" value="string-locale"/>
    </properties>
</rule>

MO4.Formatting.UnnecessaryNamespaceUsage

The imported class name must be used, when it was imported with a use statement.

MO4.Strings.VariableInDoubleQuotedString

Interpolated variables in double quoted strings must be surrounded by { }, e.g. {$VAR} instead of $VAR.

MO4.WhiteSpace.ConstantSpacing

const must be followed by a single space.

MO4.WhiteSpace.MultipleEmptyLines

No more than one empty consecutive line is allowed. Taken from mediawiki/mediawiki-codesniffer.

Further rules (imported from other standards)

See MO4/ruleset.xml, which has each imported rule commented.

Note that with this ruleset, the following Symfony Coding Standard rules are not enforced:

"add doc blocks for all classes": the doc block for classes can be omitted, if they add no value
"the license block has to be present at the top of every PHP file, before the namespace": the license block can be omitted

Most of the issues can be auto-fixed with phpcbf.

Requires

PHP
Composer is optional, but strongly recommended

Installation

Composer

Using Composer is the preferred way.

Add the MO4 coding standard to composer.json

 composer require --dev mayflower/mo4-coding-standard

Profit

 ./vendor/bin/phpcs --standard=MO4 path/to/my/file.php

Optionally, you might set MO4 as default coding standard

 ./vendor/bin/phpcs --config-set default_standard MO4

Source

Checkout this repository

 git clone https://github.com/mayflower/mo4-coding-standard.git

Install dependencies
```
 composer install
```
Check, that Symfony and MO4 are listed as coding standards
```
 ./vendor/bin/phpcs -i
```