18 lines
256 B
Markdown
18 lines
256 B
Markdown
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# Vowel
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- `v::vowel()`
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Similar to `v::alnum()`. Validates strings that contains only vowels:
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```php
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v::vowel()->validate('aei'); // true
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```
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***
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See also:
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* [Alnum](Alnum.md)
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* [Alpha](Alpha.md)
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* [Consonant](Consonant.md)
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* [Digit](Digit.md)
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