This repository extends the PSR-12 coding style.

In addition to PSR-12 this coding style also contains some rules from the Slevomat Coding Standard and PHP_CodeSniffer.

After CodeSniffer is installed, you can launch it with a custom code style using the following syntax:

composer require --dev roslov/psr12ext
./vendor/bin/phpcs --extensions=php --standard=PSR12Ext /app

If you are planning to integrate the code quality check with your IDE or CI, create the file ruleset.xml in the project’s root folder.

This file can include the list of rules you want to disable, as well as your custom settings. For example:

<?xml version="1.0" encoding="UTF-8"?>
<ruleset name="project-code-styling">
    <description>Local Project Coding Standard</description>

    <!-- Excludes vendor and temporary folders -->
    <exclude-pattern>vendor/*</exclude-pattern>
    <exclude-pattern>var/*</exclude-pattern>

    <!-- Base standards (if not detected) -->
    <config name="installed_paths" value="vendor/roslov/psr12ext" />

    <!-- Base rules -->
    <rule ref="PSR12Ext">
        <!-- Ignores line endings -->
        <exclude name="Generic.Files.LineEndings" />
        <!-- Disables strict type requirement -->
        <exclude name="SlevomatCodingStandard.TypeHints.DeclareStrictTypes" />
        <!-- Ignores missing parentheses in class instantiation -->
        <exclude name="PSR12.Classes.ClassInstantiation.MissingParentheses" />
    </rule>

    <!-- Rules for tests -->
    <rule ref="PSR1.Classes.ClassDeclaration.MissingNamespace">
        <exclude-pattern>tests/*</exclude-pattern>
    </rule>
    <rule ref="PSR2.Methods.MethodDeclaration.Underscore">
        <exclude-pattern>tests/*</exclude-pattern>
    </rule>
</ruleset>

All used rules with their options are described in PSR12Ext/ruleset.xml.

Below you can find only names of the rules:

• All rules of PSR12:
  • All rules of PSR1:
    • Generic.Files.ByteOrderMark
    • Generic.NamingConventions.UpperCaseConstantName
    • Generic.PHP.DisallowAlternativePHPTags
    • Generic.PHP.DisallowShortOpenTag
    • Generic.PHP.DisallowShortOpenTag.EchoFound
    • Squiz.Classes.ValidClassName
  • Generic.ControlStructures.InlineControlStructure
  • Generic.Files.LineEndings
  • Generic.Files.LineLength
  • Generic.Formatting.DisallowMultipleStatements
  • Generic.Functions.FunctionCallArgumentSpacing
  • Generic.PHP.LowerCaseConstant
  • Generic.PHP.LowerCaseKeyword
  • Generic.PHP.LowerCaseType
  • Generic.WhiteSpace.DisallowTabIndent
  • Generic.WhiteSpace.IncrementDecrementSpacing
  • Generic.WhiteSpace.ScopeIndent
  • PEAR.Functions.ValidDefaultValue
  • PSR2.Classes.ClassDeclaration
  • PSR2.Classes.PropertyDeclaration
  • PSR2.ControlStructures.ElseIfDeclaration
  • PSR2.ControlStructures.SwitchDeclaration
  • PSR2.Files.ClosingTag
  • PSR2.Files.EndFileNewline
  • PSR2.Methods.FunctionCallSignature
  • PSR2.Methods.FunctionCallSignature.OpeningIndent
  • PSR2.Methods.FunctionCallSignature.SpaceAfterCloseBracket
  • PSR2.Methods.FunctionClosingBrace
  • PSR2.Methods.MethodDeclaration
  • PSR2.Methods.MethodDeclaration.Underscore
  • Squiz.ControlStructures.ControlSignature
  • Squiz.ControlStructures.ForEachLoopDeclaration
  • Squiz.ControlStructures.ForEachLoopDeclaration.AsNotLower
  • Squiz.ControlStructures.ForEachLoopDeclaration.SpaceAfterOpen
  • Squiz.ControlStructures.ForEachLoopDeclaration.SpaceBeforeClose
  • Squiz.ControlStructures.ForLoopDeclaration
  • Squiz.ControlStructures.ForLoopDeclaration.SpacingAfterOpen
  • Squiz.ControlStructures.ForLoopDeclaration.SpacingBeforeClose
  • Squiz.ControlStructures.LowercaseDeclaration
  • Squiz.Functions.FunctionDeclaration
  • Squiz.Functions.FunctionDeclarationArgumentSpacing
  • Squiz.Functions.LowercaseFunctionKeywords
  • Squiz.Functions.MultiLineFunctionDeclaration
  • Squiz.Scope.MethodScope
  • Squiz.WhiteSpace.CastSpacing
  • Squiz.WhiteSpace.ControlStructureSpacing.SpacingAfterOpen
  • Squiz.WhiteSpace.ControlStructureSpacing.SpacingBeforeClose
  • Squiz.WhiteSpace.ScopeClosingBrace
  • Squiz.WhiteSpace.ScopeKeywordSpacing
  • Squiz.WhiteSpace.SuperfluousWhitespace
  • Squiz.WhiteSpace.SuperfluousWhitespace.EmptyLines
  • Squiz.WhiteSpace.SuperfluousWhitespace.EndFile
  • Squiz.WhiteSpace.SuperfluousWhitespace.StartFile
• Custom rules:
  • Generic.Arrays.DisallowLongArraySyntax
  • Generic.Formatting.SpaceAfterCast
  • PSR1.Files.SideEffects.FoundWithSymbols
  • SlevomatCodingStandard.Arrays.DisallowImplicitArrayCreation
  • SlevomatCodingStandard.Arrays.SingleLineArrayWhitespace
  • SlevomatCodingStandard.Arrays.TrailingArrayComma
  • SlevomatCodingStandard.Attributes.AttributeAndTargetSpacing
  • SlevomatCodingStandard.Attributes.AttributesOrder
  • SlevomatCodingStandard.Attributes.DisallowMultipleAttributesPerLine
  • SlevomatCodingStandard.Attributes.DisallowAttributesJoining
  • SlevomatCodingStandard.Attributes.RequireAttributeAfterDocComment
  • SlevomatCodingStandard.Classes.BackedEnumTypeSpacing
  • SlevomatCodingStandard.Classes.ClassConstantVisibility
  • SlevomatCodingStandard.Classes.ClassLength
  • SlevomatCodingStandard.Classes.ClassMemberSpacing
  • SlevomatCodingStandard.Classes.ClassStructure
  • SlevomatCodingStandard.Classes.ConstantSpacing
  • SlevomatCodingStandard.Classes.DisallowLateStaticBindingForConstants
  • SlevomatCodingStandard.Classes.DisallowMultiConstantDefinition
  • SlevomatCodingStandard.Classes.DisallowMultiPropertyDefinition
  • SlevomatCodingStandard.Classes.MethodSpacing
  • SlevomatCodingStandard.Classes.ModernClassNameReference
  • SlevomatCodingStandard.Classes.PropertyDeclaration
  • SlevomatCodingStandard.Classes.PropertySpacing
  • SlevomatCodingStandard.Classes.RequireAbstractOrFinal
  • SlevomatCodingStandard.Classes.TraitUseSpacing
  • SlevomatCodingStandard.Classes.UselessLateStaticBinding
  • SlevomatCodingStandard.Commenting.DeprecatedAnnotationDeclaration
  • SlevomatCodingStandard.Commenting.DisallowCommentAfterCode
  • SlevomatCodingStandard.Commenting.DocCommentSpacing
  • SlevomatCodingStandard.Commenting.EmptyComment
  • SlevomatCodingStandard.Commenting.InlineDocCommentDeclaration
  • SlevomatCodingStandard.Commenting.UselessFunctionDocComment
  • SlevomatCodingStandard.Complexity.Cognitive
  • SlevomatCodingStandard.ControlStructures.DisallowContinueWithoutIntegerOperandInSwitch
  • SlevomatCodingStandard.ControlStructures.LanguageConstructWithParentheses
  • SlevomatCodingStandard.ControlStructures.RequireNullCoalesceEqualOperator
  • SlevomatCodingStandard.ControlStructures.RequireNullCoalesceOperator
  • SlevomatCodingStandard.ControlStructures.UselessIfConditionWithReturn
  • SlevomatCodingStandard.ControlStructures.UselessTernaryOperator
  • SlevomatCodingStandard.Exceptions.DeadCatch
  • SlevomatCodingStandard.Exceptions.ReferenceThrowableOnly
  • SlevomatCodingStandard.Exceptions.RequireNonCapturingCatch
  • SlevomatCodingStandard.Files.FileLength
  • SlevomatCodingStandard.Functions.ArrowFunctionDeclaration
  • SlevomatCodingStandard.Functions.DisallowEmptyFunction
  • SlevomatCodingStandard.Functions.StaticClosure
  • SlevomatCodingStandard.Functions.UnusedInheritedVariablePassedToClosure
  • SlevomatCodingStandard.Functions.UselessParameterDefaultValue
  • SlevomatCodingStandard.Namespaces.AlphabeticallySortedUses
  • SlevomatCodingStandard.Namespaces.DisallowGroupUse
  • SlevomatCodingStandard.Namespaces.MultipleUsesPerLine
  • SlevomatCodingStandard.Namespaces.NamespaceDeclaration
  • SlevomatCodingStandard.Namespaces.NamespaceSpacing
  • SlevomatCodingStandard.Namespaces.ReferenceUsedNamesOnly
  • SlevomatCodingStandard.Namespaces.RequireOneNamespaceInFile
  • SlevomatCodingStandard.Namespaces.UnusedUses
  • SlevomatCodingStandard.Namespaces.UseDoesNotStartWithBackslash
  • SlevomatCodingStandard.Namespaces.UselessAlias
  • SlevomatCodingStandard.Namespaces.UseSpacing
  • SlevomatCodingStandard.Operators.NegationOperatorSpacing
  • SlevomatCodingStandard.Operators.RequireCombinedAssignmentOperator
  • SlevomatCodingStandard.Operators.SpreadOperatorSpacing
  • SlevomatCodingStandard.PHP.ForbiddenClasses
  • SlevomatCodingStandard.PHP.OptimizedFunctionsWithoutUnpacking
  • SlevomatCodingStandard.PHP.RequireExplicitAssertion
  • SlevomatCodingStandard.PHP.ShortList
  • SlevomatCodingStandard.PHP.UselessParentheses
  • SlevomatCodingStandard.PHP.UselessSemicolon
  • SlevomatCodingStandard.TypeHints.DeclareStrictTypes
  • SlevomatCodingStandard.TypeHints.LongTypeHints
  • SlevomatCodingStandard.TypeHints.NullableTypeForNullDefaultValue
  • SlevomatCodingStandard.TypeHints.NullTypeHintOnLastPosition
  • SlevomatCodingStandard.TypeHints.ParameterTypeHint
  • SlevomatCodingStandard.TypeHints.ParameterTypeHintSpacing
  • SlevomatCodingStandard.TypeHints.PropertyTypeHint
  • SlevomatCodingStandard.TypeHints.ReturnTypeHint
  • SlevomatCodingStandard.TypeHints.ReturnTypeHintSpacing
  • SlevomatCodingStandard.TypeHints.UnionTypeHintFormat
  • SlevomatCodingStandard.TypeHints.UselessConstantTypeHint
  • SlevomatCodingStandard.Variables.DisallowSuperGlobalVariable
  • SlevomatCodingStandard.Variables.DuplicateAssignmentToVariable
  • SlevomatCodingStandard.Variables.UnusedVariable
  • SlevomatCodingStandard.Variables.UselessVariable
  • SlevomatCodingStandard.Whitespaces.DuplicateSpaces
  • Squiz.Strings.ConcatenationSpacing
  • Squiz.Strings.DoubleQuoteUsage.NotRequired
  • Squiz.WhiteSpace.OperatorSpacing

PSR-12 Extended Coding Standard uses a MAJOR.MINOR.PATCH version number format.

The MAJOR version is incremented when:

• the major version of Slevomat Coding Standard is changed, or
• the major version of PHP_CodeSniffer is changed, or
• backward-incompatible changes are made to the ruleset.xml format, or
• new sniffs are enabled in this standard (added to the list), or
• existing sniffs are removed from this standard (removed from the list).

The MINOR version is incremented when:

• the minor version of Slevomat Coding Standard is changed, or
• the minor version of PHP_CodeSniffer is changed, or
• backward-compatible changes are made to the ruleset.xml format.

The PATCH version is incremented when:

• backward-compatible bug fixes are made.