The Geniem standard contains 303 sniffs
Generic.Arrays.DisallowLongArraySyntax
Generic.Classes.DuplicateClassName
Generic.Classes.OpeningBraceSameLine
Generic.CodeAnalysis.AssignmentInCondition
Generic.CodeAnalysis.EmptyPHPStatement
Generic.CodeAnalysis.EmptyStatement
Generic.CodeAnalysis.ForLoopShouldBeWhileLoop
Generic.CodeAnalysis.ForLoopWithTestFunctionCall
Generic.CodeAnalysis.JumbledIncrementer
Generic.CodeAnalysis.RequireExplicitBooleanOperatorPrecedence
Generic.CodeAnalysis.UnconditionalIfStatement
Generic.CodeAnalysis.UnnecessaryFinalModifier
Generic.CodeAnalysis.UnusedFunctionParameter
Generic.CodeAnalysis.UselessOverridingMethod
Generic.Commenting.DocComment
Generic.Commenting.Todo
Generic.ControlStructures.InlineControlStructure
Generic.Files.ByteOrderMark
Generic.Files.LineEndings
Generic.Files.LineLength
Generic.Files.OneObjectStructurePerFile
Generic.Formatting.DisallowMultipleStatements
Generic.Formatting.MultipleStatementAlignment
Generic.Formatting.SpaceAfterCast
Generic.Functions.CallTimePassByReference
Generic.Functions.FunctionCallArgumentSpacing
Generic.Functions.OpeningFunctionBraceKernighanRitchie
Generic.Metrics.CyclomaticComplexity
Generic.Metrics.NestingLevel
Generic.NamingConventions.ConstructorName
Generic.NamingConventions.UpperCaseConstantName
Generic.PHP.BacktickOperator
Generic.PHP.DeprecatedFunctions
Generic.PHP.DisallowAlternativePHPTags
Generic.PHP.DisallowShortOpenTag
Generic.PHP.DiscourageGoto
Generic.PHP.ForbiddenFunctions
Generic.PHP.LowerCaseConstant
Generic.PHP.LowerCaseKeyword
Generic.PHP.LowerCaseType
Generic.PHP.NoSilencedErrors
Generic.PHP.Syntax
Generic.Strings.UnnecessaryStringConcat
Generic.VersionControl.GitMergeConflict
Generic.WhiteSpace.ArbitraryParenthesesSpacing
Generic.WhiteSpace.DisallowSpaceIndent
Generic.WhiteSpace.IncrementDecrementSpacing
Generic.WhiteSpace.LanguageConstructSpacing
Generic.WhiteSpace.ScopeIndent
Generic.WhiteSpace.SpreadOperatorSpacingAfter
Geniem.ControlStructures.ElseCatchNewline
Modernize.FunctionCalls.Dirname
NormalizedArrays.Arrays.ArrayBraceSpacing
NormalizedArrays.Arrays.CommaAfterLast
PEAR.Files.IncludingFile
PEAR.Functions.FunctionCallSignature
PEAR.Functions.ValidDefaultValue
PEAR.NamingConventions.ValidClassName
PHPCompatibility.Classes.ForbiddenAbstractPrivateMethods
PHPCompatibility.Classes.NewAnonymousClasses
PHPCompatibility.Classes.NewClasses
PHPCompatibility.Classes.NewConstVisibility
PHPCompatibility.Classes.NewLateStaticBinding
PHPCompatibility.Classes.NewTypedProperties
PHPCompatibility.Classes.RemovedOrphanedParent
PHPCompatibility.Constants.NewConstants
PHPCompatibility.Constants.NewMagicClassConstant
PHPCompatibility.Constants.RemovedConstants
PHPCompatibility.ControlStructures.DiscouragedSwitchContinue
PHPCompatibility.ControlStructures.ForbiddenBreakContinueOutsideLoop
PHPCompatibility.ControlStructures.ForbiddenBreakContinueVariableArguments
PHPCompatibility.ControlStructures.ForbiddenSwitchWithMultipleDefaultBlocks
PHPCompatibility.ControlStructures.NewExecutionDirectives
PHPCompatibility.ControlStructures.NewForeachExpressionReferencing
PHPCompatibility.ControlStructures.NewListInForeach
PHPCompatibility.ControlStructures.NewMultiCatch
PHPCompatibility.Extensions.RemovedExtensions
PHPCompatibility.FunctionDeclarations.ForbiddenParameterShadowSuperGlobals
PHPCompatibility.FunctionDeclarations.ForbiddenParametersWithSameName
PHPCompatibility.FunctionDeclarations.ForbiddenToStringParameters
PHPCompatibility.FunctionDeclarations.ForbiddenVariableNamesInClosureUse
PHPCompatibility.FunctionDeclarations.NewClosure
PHPCompatibility.FunctionDeclarations.NewExceptionsFromToString
PHPCompatibility.FunctionDeclarations.NewNullableTypes
PHPCompatibility.FunctionDeclarations.NewParamTypeDeclarations
PHPCompatibility.FunctionDeclarations.NewReturnTypeDeclarations
PHPCompatibility.FunctionDeclarations.NonStaticMagicMethods
PHPCompatibility.FunctionNameRestrictions.NewMagicMethods
PHPCompatibility.FunctionNameRestrictions.RemovedMagicAutoload
PHPCompatibility.FunctionNameRestrictions.RemovedNamespacedAssert
PHPCompatibility.FunctionNameRestrictions.RemovedPHP4StyleConstructors
PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames
PHPCompatibility.FunctionUse.ArgumentFunctionsReportCurrentValue
PHPCompatibility.FunctionUse.ArgumentFunctionsUsage
PHPCompatibility.FunctionUse.NewFunctionParameters
PHPCompatibility.FunctionUse.NewFunctions
PHPCompatibility.FunctionUse.OptionalToRequiredFunctionParameters
PHPCompatibility.FunctionUse.RemovedFunctionParameters
PHPCompatibility.FunctionUse.RemovedFunctions
PHPCompatibility.FunctionUse.RequiredToOptionalFunctionParameters
PHPCompatibility.Generators.NewGeneratorReturn
PHPCompatibility.IniDirectives.NewIniDirectives
PHPCompatibility.IniDirectives.RemovedIniDirectives
PHPCompatibility.InitialValue.NewConstantArraysUsingConst
PHPCompatibility.InitialValue.NewConstantArraysUsingDefine
PHPCompatibility.InitialValue.NewConstantScalarExpressions
PHPCompatibility.InitialValue.NewHeredoc
PHPCompatibility.Interfaces.InternalInterfaces
PHPCompatibility.Interfaces.NewInterfaces
PHPCompatibility.Keywords.CaseSensitiveKeywords
PHPCompatibility.Keywords.ForbiddenNames
PHPCompatibility.Keywords.ForbiddenNamesAsDeclared
PHPCompatibility.Keywords.ForbiddenNamesAsInvokedFunctions
PHPCompatibility.Keywords.NewKeywords
PHPCompatibility.LanguageConstructs.NewEmptyNonVariable
PHPCompatibility.LanguageConstructs.NewLanguageConstructs
PHPCompatibility.Lists.AssignmentOrder
PHPCompatibility.Lists.ForbiddenEmptyListAssignment
PHPCompatibility.Lists.NewKeyedList
PHPCompatibility.Lists.NewListReferenceAssignment
PHPCompatibility.Lists.NewShortList
PHPCompatibility.MethodUse.ForbiddenToStringParameters
PHPCompatibility.MethodUse.NewDirectCallsToClone
PHPCompatibility.Miscellaneous.NewPHPOpenTagEOF
PHPCompatibility.Miscellaneous.RemovedAlternativePHPTags
PHPCompatibility.Miscellaneous.ValidIntegers
PHPCompatibility.Operators.ChangedConcatOperatorPrecedence
PHPCompatibility.Operators.ForbiddenNegativeBitshift
PHPCompatibility.Operators.NewOperators
PHPCompatibility.Operators.NewShortTernary
PHPCompatibility.Operators.RemovedTernaryAssociativity
PHPCompatibility.ParameterValues.ForbiddenGetClassNull
PHPCompatibility.ParameterValues.ForbiddenStripTagsSelfClosingXHTML
PHPCompatibility.ParameterValues.NewArrayReduceInitialType
PHPCompatibility.ParameterValues.NewFopenModes
PHPCompatibility.ParameterValues.NewHashAlgorithms
PHPCompatibility.ParameterValues.NewHTMLEntitiesEncodingDefault
PHPCompatibility.ParameterValues.NewIconvMbstringCharsetDefault
PHPCompatibility.ParameterValues.NewIDNVariantDefault
PHPCompatibility.ParameterValues.NewNegativeStringOffset
PHPCompatibility.ParameterValues.NewPackFormat
PHPCompatibility.ParameterValues.NewPasswordAlgoConstantValues
PHPCompatibility.ParameterValues.NewPCREModifiers
PHPCompatibility.ParameterValues.NewProcOpenCmdArray
PHPCompatibility.ParameterValues.NewStripTagsAllowableTagsArray
PHPCompatibility.ParameterValues.RemovedHashAlgorithms
PHPCompatibility.ParameterValues.RemovedIconvEncoding
PHPCompatibility.ParameterValues.RemovedImplodeFlexibleParamOrder
PHPCompatibility.ParameterValues.RemovedMbstringModifiers
PHPCompatibility.ParameterValues.RemovedMbStrrposEncodingThirdParam
PHPCompatibility.ParameterValues.RemovedNonCryptoHash
PHPCompatibility.ParameterValues.RemovedPCREModifiers
PHPCompatibility.ParameterValues.RemovedSetlocaleString
PHPCompatibility.Syntax.ForbiddenCallTimePassByReference
PHPCompatibility.Syntax.NewArrayStringDereferencing
PHPCompatibility.Syntax.NewArrayUnpacking
PHPCompatibility.Syntax.NewClassMemberAccess
PHPCompatibility.Syntax.NewDynamicAccessToStatic
PHPCompatibility.Syntax.NewFlexibleHeredocNowdoc
PHPCompatibility.Syntax.NewFunctionArrayDereferencing
PHPCompatibility.Syntax.NewFunctionCallTrailingComma
PHPCompatibility.Syntax.NewShortArray
PHPCompatibility.Syntax.RemovedCurlyBraceArrayAccess
PHPCompatibility.Syntax.RemovedNewReference
PHPCompatibility.TextStrings.NewUnicodeEscapeSequence
PHPCompatibility.TypeCasts.NewTypeCasts
PHPCompatibility.TypeCasts.RemovedTypeCasts
PHPCompatibility.Upgrade.LowPHP
PHPCompatibility.Upgrade.LowPHPCS
PHPCompatibility.UseDeclarations.NewGroupUseDeclarations
PHPCompatibility.UseDeclarations.NewUseConstFunction
PHPCompatibility.Variables.ForbiddenGlobalVariableVariable
PHPCompatibility.Variables.ForbiddenThisUseContexts
PHPCompatibility.Variables.NewUniformVariableSyntax
PHPCompatibility.Variables.RemovedPredefinedGlobalVariables
PSR2.Classes.ClassDeclaration
PSR2.Classes.PropertyDeclaration
PSR2.ControlStructures.ElseIfDeclaration
PSR2.ControlStructures.SwitchDeclaration
PSR2.Files.ClosingTag
PSR2.Files.EndFileNewline
PSR2.Methods.FunctionClosingBrace
PSR2.Methods.MethodDeclaration
PSR2.Namespaces.NamespaceDeclaration
PSR12.Classes.ClassInstantiation
PSR12.Files.FileHeader
PSR12.Functions.NullableTypeDeclaration
PSR12.Functions.ReturnTypeDeclaration
PSR12.Keywords.ShortFormTypeKeywords
PSR12.Traits.UseDeclaration
Squiz.Classes.SelfMemberReference
Squiz.Commenting.BlockComment
Squiz.Commenting.ClassComment
Squiz.Commenting.ClosingDeclarationComment
Squiz.Commenting.DocCommentAlignment
Squiz.Commenting.EmptyCatchComment
Squiz.Commenting.FunctionComment
Squiz.Commenting.FunctionCommentThrowTag
Squiz.Commenting.InlineComment
Squiz.Commenting.VariableComment
Squiz.Functions.FunctionDeclarationArgumentSpacing
Squiz.Functions.FunctionDuplicateArgument
Squiz.Functions.MultiLineFunctionDeclaration
Squiz.Operators.IncrementDecrementUsage
Squiz.Operators.ValidLogicalOperators
Squiz.PHP.CommentedOutCode
Squiz.PHP.DisallowMultipleAssignments
Squiz.PHP.DisallowSizeFunctionsInLoops
Squiz.PHP.EmbeddedPhp
Squiz.PHP.Eval
Squiz.PHP.NonExecutableCode
Squiz.Scope.MethodScope
Squiz.Strings.ConcatenationSpacing
Squiz.Strings.DoubleQuoteUsage
Squiz.WhiteSpace.CastSpacing
Squiz.WhiteSpace.ScopeKeywordSpacing
Squiz.WhiteSpace.SemicolonSpacing
Squiz.WhiteSpace.SuperfluousWhitespace
Universal.Arrays.DisallowShortArraySyntax
Universal.Arrays.DuplicateArrayKey
Universal.Classes.ModifierKeywordOrder
Universal.Classes.RequireAnonClassParentheses
Universal.CodeAnalysis.ConstructorDestructorReturn
Universal.CodeAnalysis.ForeachUniqueAssignment
Universal.CodeAnalysis.NoDoubleNegative
Universal.CodeAnalysis.NoEchoSprintf
Universal.CodeAnalysis.StaticInFinalClass
Universal.Constants.LowercaseClassResolutionKeyword
Universal.Constants.ModifierKeywordOrder
Universal.Constants.UppercaseMagicConstants
Universal.ControlStructures.DisallowLonelyIf
Universal.Files.SeparateFunctionsFromOO
Universal.Namespaces.DisallowCurlyBraceSyntax
Universal.Namespaces.DisallowDeclarationWithoutName
Universal.Namespaces.OneDeclarationPerFile
Universal.NamingConventions.NoReservedKeywordParameterNames
Universal.Operators.DisallowShortTernary
Universal.Operators.DisallowStandalonePostIncrementDecrement
Universal.Operators.StrictComparisons
Universal.Operators.TypeSeparatorSpacing
Universal.PHP.LowercasePHPTag
Universal.UseStatements.DisallowMixedGroupUse
Universal.UseStatements.KeywordSpacing
Universal.UseStatements.LowercaseFunctionConst
Universal.UseStatements.NoLeadingBackslash
Universal.UseStatements.NoUselessAliases
Universal.WhiteSpace.AnonClassKeywordSpacing
Universal.WhiteSpace.CommaSpacing
Universal.WhiteSpace.DisallowInlineTabs
Universal.WhiteSpace.PrecisionAlignment
WordPress.Arrays.ArrayDeclarationSpacing
WordPress.Arrays.ArrayIndentation
WordPress.Arrays.ArrayKeySpacingRestrictions
WordPress.Arrays.MultipleStatementAlignment
WordPress.CodeAnalysis.AssignmentInTernaryCondition
WordPress.CodeAnalysis.EscapedNotTranslated
WordPress.DateTime.CurrentTimeTimestamp
WordPress.DateTime.RestrictedFunctions
WordPress.DB.DirectDatabaseQuery
WordPress.DB.PreparedSQL
WordPress.DB.PreparedSQLPlaceholders
WordPress.DB.RestrictedClasses
WordPress.DB.RestrictedFunctions
WordPress.DB.SlowDBQuery
WordPress.NamingConventions.PrefixAllGlobals
WordPress.NamingConventions.ValidFunctionName
WordPress.NamingConventions.ValidHookName
WordPress.NamingConventions.ValidPostTypeSlug
WordPress.PHP.DevelopmentFunctions
WordPress.PHP.DiscouragedPHPFunctions
WordPress.PHP.DontExtract
WordPress.PHP.IniSet
WordPress.PHP.NoSilencedErrors
WordPress.PHP.POSIXFunctions
WordPress.PHP.PregQuoteDelimiter
WordPress.PHP.StrictInArray
WordPress.PHP.TypeCasts
WordPress.Security.EscapeOutput
WordPress.Security.NonceVerification
WordPress.Security.PluginMenuSlug
WordPress.Security.SafeRedirect
WordPress.Security.ValidatedSanitizedInput
WordPress.Utils.I18nTextDomainFixer
WordPress.WhiteSpace.CastStructureSpacing
WordPress.WhiteSpace.ControlStructureSpacing
WordPress.WhiteSpace.ObjectOperatorSpacing
WordPress.WhiteSpace.OperatorSpacing
WordPress.WP.AlternativeFunctions
WordPress.WP.Capabilities
WordPress.WP.CapitalPDangit
WordPress.WP.ClassNameCase
WordPress.WP.CronInterval
WordPress.WP.DeprecatedClasses
WordPress.WP.DeprecatedFunctions
WordPress.WP.DeprecatedParameters
WordPress.WP.DeprecatedParameterValues
WordPress.WP.DiscouragedConstants
WordPress.WP.DiscouragedFunctions
WordPress.WP.EnqueuedResourceParameters
WordPress.WP.EnqueuedResources
WordPress.WP.GlobalVariablesOverride
WordPress.WP.I18n
WordPress.WP.PostsPerPage