Question

Sorry for asking probably a basic question, but I’m having a blackout.

If I have an array of arrays:

Array
(
    [appsversion] => Array
        (
            [0] => appsversion='6.1.0.33'
            [1] => appsversion='6.1.0.40'
        ),
    [osversion] => Array
        (
            [0] => osversion='6.1.0.53'
            [1] => osversion='6.1.0.42'
        )
)

how do I please construct an SQL condition with OR and AND of it?

I.e. for something like:

    $condition = '';
    foreach ($CONDITIONS as $key => $value) {
        # XXX I'm so lost here XXX
    }

    $sql = sprintf('select %s from mytable where %s', $condition);
    $sth = $pg->prepare($sql);
    $sth->execute();

I need the constructed string

    (appsversion='6.1.0.33' OR appsversion='6.1.0.40') AND
    (osversion='6.1.0.53' OR osversion='6.1.0.42') 

or:

    appsversion in ('6.1.0.33', '6.1.0.40') AND
    osversion in ('6.1.0.53', '6.1.0.42') 

Please give me few hints – to get my brain started again 🙂

Answer 1

There:

$where = array();
foreach ($conditions as $values) {
    $where[] = '('.implode(' OR ', $values).')';
}
$string = implode(' AND ', $where);

Yields:

(appsversion='6.1.0.33' OR appsversion='6.1.0.40') AND (osversion='6.1.0.53' OR osversion='6.1.0.42')