respect-validation/docs/validators/Alpha.md

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');
// → "some name" must contain only letters (a-z)

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

v::alpha()->assert('Cedric-Fabian');
// → "Cedric-Fabian" must contain only 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 contain only uppercase letters

Templates

Alpha::TEMPLATE_STANDARD

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

Alpha::TEMPLATE_EXTRA

Mode	Template
default	{{subject}} must contain only letters (a-z) and {{additionalChars}}
inverted	{{subject}} must not contain 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
2.0.0	Removed support to whitespaces by default
0.3.9	Created

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See also:

• Alnum
• Charset
• Consonant
• Decimal
• Digit
• Emoji
• Lowercase
• Regex
• Spaced
• Uppercase
• Vowel