PHP Build ol li nested list by multidimensional array given

Question

I have a multidimensional array with many nested sub levels and I want to print it as a well formatted ol li ol li ... list. So I've created this function, but it doesn't work properly:

    function loop($array) {
    echo '<ol class="dd-list">';
    $arrayObj = new ArrayObject($array);        
    foreach ( $iterator = $arrayObj->getIterator() as $key => $value ) {
        if(is_array($value)) {
            loop($iterator->current());
        } else {
            if($iterator->key()=='position') {
                echo '<li class="dd-item" data-id="' . $iterator->current() . '">';
                    echo '<div class="dd-handle">' . $iterator->key()  . '  ' . $iterator->current() . '</div>';
                echo '</li>';
            }                                           
        }
    }       
    echo '</ol>';
}

How can I fix it? The given array is:

)

It builds "ol" for each "li", which is wrong, because I'd like to have "ol" for nested "li" groups and not singli "li". — Escudo Bravo
– Escudo Bravo, Commented May 20, 2014 at 9:11
I want as result a list as this: ol li ol li li li /ol /li /ol when I'm wrongly having something like this: ol li /ol ol li /ol. Am I clear enough? — Escudo Bravo
– Escudo Bravo, Commented May 20, 2014 at 9:33

Bogdan · Accepted Answer · 2014-05-20 12:50:29Z

I took the iterator out of the question. Maybe I'm missing something, but it seems to over-complixify a simple problem.

Also, in order to achieve what you want, at some point you would have to give the data-id attribute of the div an array, not a value. I changed that in the code below so that it receives the key - but I guess you should change that;

Here is the code:

function loop($array) {
    echo '<ol class="dd-list">';
    echo "\n";
    foreach ( $array as $key => $value ) {
        //this is the line I was talking about earlier
        echo '<li class="dd-item" data-id="' . $key . '">';
        if(is_array($value)) {
            loop($value);
        } else {
            echo '<div class="dd-handle">' . $key  . ' => ' . $value . '</div>';
        }
        echo '</li>';
        echo "\n";                                  
    }       
    echo '</ol>';
}   

$testArray = array('1', '2', array('3', '4'));
loop($testArray);

And here it is working: http://3v4l.org/ahiI9

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