如何在php中设置条件键=>值对？

Question

This is what I have:

'options' => array(
    'active' => (count($panels)>=2) ? false : NULL,
    'collapsible' => true,
    'icons' => null,
     'header' => "dt"
),

I assumed that the null on the value will be enough. However, the effect we wish will only occur, if and only if, all key=>value pair don't appear on the array.

How can I make this key=>value pair to appear:

'active' => false;

If count($panels)>=2 and to not appear at all, if that's not the case?

Is there an clear, easy and understandable way to achieve this, or should I play with array merges and stuff like that?

Please advice

Answer 1

I'd write it as follows:

$options = array(
    'collapsible' => true,
    'icons'       => null,
    'header'      => "dt"
);

if (count($panels) >= 2) {
    $options['active'] = false;
}

You'll obviously need to adapt this because your options array is contained within another.