Test strings for letters, numbers, and special characters. Returns true if they exist, false if they don't. Forked from http://stackoverflow.com/a/9588010/1293256

has-characters.php

<?php

// Does string contain letters?
function _s_has_letters( $string ) {
    return preg_match( '/[a-zA-Z]/', $string );
}

// Does string contain numbers?
function _s_has_numbers( $string ) {
    return preg_match( '/\d/', $string );
}

// Does string contain special characters?
function _s_has_special_chars( $string ) {
    return preg_match('/[^a-zA-Z\d]/', $string);
}

?>

Thanks a lot!

This is great!

Does there is a way to match each character of "string" against some predefined characters when the "string" is encrpyted which we have to match with the set of predefined characters?

CTRL-C

Great and simple example - Thank You!

THX

Matur Nuhun Bosku...

and test string for a brace ( i.e, { ) ?

test for brace ?