Question

I need a regex to see if the $input ONLY contained alphabetic characters or white spaces also need one to check if $numInput ONLY contained numeric characters or white spaces AND one combined so:

$alphabeticOnly = 'abcd adb';
$numericOnly = '1234 567';
$alphabeticNumeric = 'abcd 3232';

So in all of the above examples alphabetic, numeric, whitespace are allowed ONLY NO symbols.

How can I get those 3 diffrent regular expression?

Answer 1

This should help you

if (!preg_match('/^[\sa-zA-Z]+$/', $alphabeticOnly){
    die('alpha match fail!');
}

if (!preg_match('/^[\s0-9]+$/', $numericOnly){
    die('numeric match fail!');
}

if (!preg_match('/^[\sa-zA-Z0-9]+$/', $alphabeticNumeric){
    die('alphanumeric match fail!');
}