respect-validation/docs/rules/Cntrl.md

Cntrl

• Cntrl()
• Cntrl(string ...$additionalChars)

This is similar to Alnum(), but only accepts control characters:

v::cntrl()->validate("\n\r\t"); // true

Changelog

Version	Description
0.5.0	Created

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See also:

• Alnum
• Printable
• Punct
• Space