My current regex is /^[a-zA-Z]+( [a-zA-Z]+)*$/. It works for names like:
John Smith
Anyway, the site is international and name could be like this, for example:
Jānis Bērziņš
It's a valid name, but regex will fail to validate it because of ā, ē and š chars.
The one way would be to type all chars that are allowed, but then the list would be HUGE!
I'm looking for easier way to do that. Maybe black-list instead of white-list approach?
Thanks in any advice!
Use a regex in UTF-8 mode with the appropriate Unicode character propert(y/ies).
Just replace your character class with the unicode property for letter \pL
/^\pL+( \pL+)*$/
See here on regular/expressions.info an overview of the unicode properties
in my test on writecodeonline.com this is working
$s = "Jānis Bērziņš";
preg_match("/^\\pL+( \\pL+)*$/", $s, $matches);