How would I use regex to check for a value that has two fixed uppercase letters followed by numeric values in PHP or jQuery?

Question

An example would be "SU1203" or "UP1234" or any two letters followed by numeric values. thanks

Answer 1

This can be solved with the quite simple expression

^[A-Z]{2}\d+$

In JavaScript you can use the test() method:

if(/^[A-Z]{2}\d+$/.test(str))

and in PHP, preg_match :

if(preg_match('/^[A-Z]{2}\d+$/', $str) === 1)

I suggest to learn regular expressions .

See also:

• Regular expressions in JavaScript
• Regular expressions in PHP

Answer 2

Try:

if (preg_match('|^[A-Z]{2}[0-9]+$|', $string_to_test))
{
  // matched
}

Answer 3

javascript example:

if ( /(^[A-Z]{2}\d+)/.test('SU1203') ) {
   alert( 'matched' )
} else { alert('not matched') }