Class Symfony\Component\Console\Helper\Helper

`abstract`
`implements`	`HelperInterface`

Helper is the base class for all helper classes.

Symfony\Component\Console\Helper\Helper implements HelperInterface
- Symfony\Component\Console\Helper\QuestionHelper
  - Symfony\Component\Console\Helper\SymfonyQuestionHelper

Methods
`public`	`setHelperSet(HelperSet $helperSet = null): void` Sets the helper set associated with this helper. Sets the helper set associated with this helper. Implements `Symfony\Component\Console\Helper\HelperInterface::setHelperSet()`	#
`public`	`getHelperSet(): ?HelperSet` Gets the helper set associated with this helper. Gets the helper set associated with this helper. Implements `Symfony\Component\Console\Helper\HelperInterface::getHelperSet()`	#
`public static`	`width(?string $string): int` Returns the width of a string, using mb_strwidth if it is available. The width is how many characters positions the… Returns the width of a string, using mb_strwidth if it is available. The width is how many characters positions the string will use.	#
`public static`	`length(?string $string): int` Returns the length of a string, using mb_strlen if it is available. The length is related to how many bytes the string… Returns the length of a string, using mb_strlen if it is available. The length is related to how many bytes the string will use.	#
`public static`	`substr(?string $string, int $from, int $length = null): string` Returns the subset of a string, using mb_substr if it is available. Returns the subset of a string, using mb_substr if it is available.	#
`public static`	`formatTime(int\|float $secs): string`	#
`public static`	`formatMemory(int $memory): string`	#
`public static`	`removeDecoration(OutputFormatterInterface $formatter, ?string $string): string`	#

Properties
`protected`		`$helperSet`	#