Question

The following code checks for tables on the database.

function checkdbexists(){
    global $krdb;
    return $krdb->query("show tables");
}

We want to check whether a table called ‘systems’ exists returning 1 if it does and null or 0 if it does not.

Answer 1

you can use

array_search('system',$krb->query('show tables')->fetch())!==false;