Question

46

rated 0 times [ 47] [ 1] / answers: 1 / hits: 45738 / 13 Years ago, wed, december 7, 2011, 12:00:00

How can I validate a field only with upper case letters which are alphabetic. So, I want to match any word made of A-Z characters only.

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Member since Wed, Dec 8, 2021

3 Years ago

answered 13 Years ago susanajamiep · Accepted Answer

Try something like this for the javascript validation:

if (value.match(/^[A-Z]*$/)) {

    // matches

} else {

    // doesn't match

}

And for validation on the server side in php:

if (preg_match(/^[A-Z]*$/, $value)) {

    // matches

} else {

    // doesn't match

}

It's always a good idea to do an additional server side check, since javascript checks can be easily bypassed.