Create or add text parser.php

<?php

$string_create = 'create_some_long_tablename';
$string_add = 'add_some_tablename_to_other_long_table_name';

function get($string) {
    $string = str_replace(array('create_', 'add_','_to_'), array('create-', 'add-', '-to-'), $string);
    if (preg_match('/^(create|add)\-([A-Za-z0-9\_]*)(\-to\-)?([A-Za-z0-9\_]*)?$/i', $string, $matches)) {

        if ($matches[1] == 'create') {
            echo $matches[2];
        }
        else if ($matches[1] == 'add') {
            echo $matches[2] . ' to ' . $matches[4];
        }
    }
    else {
        echo 'failed';
    }
    print '<br />';
}

get($string_create);
get($string_add);