[EDIT] FILE: functions.md

## Functions #### SlevomatCodingStandard.Functions.ArrowFunctionDeclaration 🔧 Checks `fn` declaration. Sniff provides the following settings: * `spacesCountAfterKeyword`: the number of spaces after `fn`. * `spacesCountBeforeArrow`: the number of spaces before `=>`. * `spacesCountAfterArrow`: the number of spaces after `=>`. * `allowMultiLine`: allows multi-line declaration. #### SlevomatCodingStandard.Functions.DisallowArrowFunction Disallows arrow functions. #### SlevomatCodingStandard.Functions.DisallowEmptyFunction Reports empty functions body and requires at least a comment inside. #### SlevomatCodingStandard.Functions.FunctionLength Disallows long functions. This sniff provides the following setting: * `includeComments` (default: `false`): should comments be included in the count. * `includeWhitespace` (default: `false`): should empty lines be included in the count. * `maxLinesLength` (default: `20`): specifies max allowed function lines length. #### SlevomatCodingStandard.Functions.RequireArrowFunction 🔧 Requires arrow functions. Sniff provides the following settings: * `allowNested` (default: `true`) * `enable`: either to enable or not this sniff. By default, it is enabled for PHP versions 7.4 or higher. #### SlevomatCodingStandard.Functions.RequireMultiLineCall 🔧 Enforces function call to be split to more lines so each parameter is on its own line. Sniff provides the following settings: * `minLineLength`: specifies min line length to enforce call to be split. Use 0 value to enforce for all calls, regardless of length. #### SlevomatCodingStandard.Functions.RequireSingleLineCall 🔧 Enforces function call to be on a single line. Sniff provides the following settings: * `maxLineLength`: specifies max allowed line length. If call would fit on it, it's enforced. Use 0 value to enforce for all calls, regardless of length. * `ignoreWithComplexParameter` (default: `true`): ignores calls with arrays, closures, arrow functions and nested calls. #### SlevomatCodingStandard.Functions.DisallowNamedArguments This sniff disallows usage of named arguments. #### SlevomatCodingStandard.Functions.NamedArgumentSpacing 🔧 Checks spacing in named argument. #### SlevomatCodingStandard.Functions.DisallowTrailingCommaInCall 🔧 This sniff disallows trailing commas in multi-line calls. This sniff provides the following setting: * `onlySingleLine`: to enable checks only for single-line calls. #### SlevomatCodingStandard.Functions.RequireTrailingCommaInCall 🔧 Commas after the last parameter in function or method call make adding a new parameter easier and result in a cleaner versioning diff. This sniff enforces trailing commas in multi-line calls. This sniff provides the following setting: * `enable`: either to enable or not this sniff. By default, it is enabled for PHP versions 7.3 or higher. #### SlevomatCodingStandard.Functions.DisallowTrailingCommaInClosureUse 🔧 This sniff disallows trailing commas in multi-line `use` of closure declaration. This sniff provides the following setting: * `onlySingleLine`: to enable checks only for single-line `use` declarations. #### SlevomatCodingStandard.Functions.RequireTrailingCommaInClosureUse 🔧 Commas after the last inherited variable in multi-line `use` of closure declaration make adding a new variable easier and result in a cleaner versioning diff. This sniff enforces trailing commas in multi-line declarations. This sniff provides the following setting: * `enable`: either to enable or not this sniff. By default, it is enabled for PHP versions 8.0 or higher. #### SlevomatCodingStandard.Functions.DisallowTrailingCommaInDeclaration 🔧 This sniff disallows trailing commas in multi-line declarations. This sniff provides the following setting: * `onlySingleLine`: to enable checks only for single-line declarations. #### SlevomatCodingStandard.Functions.RequireTrailingCommaInDeclaration 🔧 Commas after the last parameter in function or method declaration make adding a new parameter easier and result in a cleaner versioning diff. This sniff enforces trailing commas in multi-line declarations. This sniff provides the following setting: * `enable`: either to enable or not this sniff. By default, it is enabled for PHP versions 8.0 or higher. #### SlevomatCodingStandard.Functions.StaticClosure 🔧 Reports closures not using `$this` that are not declared `static`. #### SlevomatCodingStandard.Functions.StrictCall Some functions have `$strict` parameter. This sniff reports calls to these functions without the parameter or with `$strict = false`. #### SlevomatCodingStandard.Functions.UnusedInheritedVariablePassedToClosure 🔧 Looks for unused inherited variables passed to closure via `use`. #### SlevomatCodingStandard.Functions.UnusedParameter 🚧 Looks for unused parameters. This sniff provides the following setting: * `allowedParameterPatterns`: allows to configure which parameters are always allowed, even if unused. This is an array of regular expressions (PCRE) with delimiters, but without the leading `$` from variable names. (For example, use `[/^_/]` to allow parameters that start with an underscore, like `$_unused`.) #### SlevomatCodingStandard.Functions.UselessParameterDefaultValue 🚧 Looks for useless parameter default value.
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