## Variables #### SlevomatCodingStandard.Variables.DisallowSuperGlobalVariable Disallows use of super global variables. #### SlevomatCodingStandard.Variables.DuplicateAssignmentToVariable Looks for duplicate assignments to a variable. #### SlevomatCodingStandard.Variables.UnusedVariable Looks for unused variables. Sniff provides the following settings: * `ignoreUnusedValuesWhenOnlyKeysAreUsedInForeach` (defaults to `false`): ignore unused `$value` in foreach when only `$key` is used ```php foreach ($values as $key => $value) { echo $key; } ``` #### SlevomatCodingStandard.Variables.UselessVariable 🔧 Looks for useless variables.