Regular expression to accept only greek characters

Question

I have this regular expression ^[A-Za-z]{2,3}[0-9]{3,4}$ with which I validate in an input field so that it has 2 or 3 letters and 3 or 4 numbers

I want to accept only greek characters.

I tried this ^[α-ωΑ-Ω]{2,3}[0-9]{3,4}$ from PHP and regexp to accept only Greek characters in form but with no luck

i also tried ^[\p{Greek}]{2,3}[0-9]{3,4}$ but again no luck

Any suggestions?

VALID STRINGS: ΚΚΞ542 OOP8888 ΠΠ8965 INVALID STRINGS: 555555 K879 ΓΗΥΟ565

Answer 1

You may match chars with \p{Greek} and you must use the /u modifier:

'~^\p{Greek}{2,3}[0-9]{3,4}$~u'

See the regex demo.

Pattern details

• ^ - start of string
• \p{Greek}{2,3} - 2 or 3 Greek chars
• [0-9]{3,4} - 3 or 4 ASCII digits
• $ - end of string.