respect-validation/docs/rules/Vowel.md

Vowel

• Vowel()
• Vowel(string ...$additionalChars)

Similar to Alnum(). Validates strings that contains only vowels:

v::vowel()->validate('aei'); // true

Changelog

Version	Description
0.5.0	Renamed from Vowels to Vowel
0.3.9	Created as Vowels

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See also:

• Alnum
• Alpha
• Consonant
• Digit