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Alpha

  • Alpha()
  • Alpha(string ...$additionalChars)

Validates whether the input contains only alphabetic characters. This is similar to Alnum, but it does not allow numbers.

v::alpha(' ')->assert('some name');
// Validation passes successfully

v::alpha()->assert('some name');
// → "some name" must consist only of letters (a-z)

v::alpha()->assert('Cedric-Fabian');
// → "Cedric-Fabian" must consist only of letters (a-z)

v::alpha('-')->assert('Cedric-Fabian');
// Validation passes successfully

v::alpha('-', '\'')->assert('\'s-Gravenhage');
// Validation passes successfully

You can restrict case using the Lowercase and Uppercase validators.

v::alpha()->uppercase()->assert('example');
// → "example" must consist only of uppercase letters

Templates

Alpha::TEMPLATE_STANDARD

Mode Template
default {{subject}} must consist only of letters (a-z)
inverted {{subject}} must not consist only of letters (a-z)

Alpha::TEMPLATE_EXTRA

Mode Template
default {{subject}} must consist only of letters (a-z) or {{additionalChars}}
inverted {{subject}} must not consist only of letters (a-z) or {{additionalChars}}

Template placeholders

Placeholder Description
additionalChars Additional characters that are considered valid.
subject The validated input or the custom validator name (if specified).

Categorization

  • Strings

Changelog

Version Description
3.0.0 Templates changed
2.0.0 Removed support to whitespaces by default
0.3.9 Created

See Also