Birthday required when adding a new person

[meichthys]

It doesn't seem like a birthday should be required.

[OldManMozz]

It is a bug I believe.
Line 213 in PersonEditor.php reads:
} elseif (strlen($iBirthYear) > 0 && $iBirthMonth == 0 && $iBirthDay == 0) {
By default on the page Birth Year is set to 0, which has a string length of 1 so will always fail.
Changing line 213 to read:
} elseif ($iBirthYear > 0 && $iBirthMonth == 0 && $iBirthDay == 0) {
will fix the problem and allow the date of birth to be optional.

[yeison08]

I try your subjection and it work.
Thank you!!

[DAcodedBEAT]

Thanks for the suggestion @OldManMozz !

I've made a Pull Request so this suggestion is upstreamed into the project: #6652