Alpha validation might not be doing what you think

It certainly surprised me the first time I bumped into it

Joel Clermont
Joel Clermont

Something that many developers find surprising is that the alpha validation rule doesn't just accept letters in the Roman alphabet (A-Z), but also includes thousands of Unicode characters like ƛ, ⱆ and আ.

Since Laravel 9, there's a modifier you can pass to the validation rule if you really only want A-Z characters to be accepted. Change your rule to alpha:ascii to change the behavior. Very cool!

Here to help,


P.S. This is just one of hundreds of interesting facts we share about validation in our book: Mastering Laravel Validation Rules.

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