Question

I need to read nested arrays without knowing how the array will look.

For example;

$data = array(
        'Data1_lvl1' => array(
                            'Data1_lvl2' => "value",
                            'Data2_lvl2' => array(
                                                'Data1_lvl3' => "value"
                                            )
                        ),
        'Data2_lvl1' => 'value'
    );

Needs to be formatted to strings like:

1. Data1_lvl1/Data1_lvl2/
2. Data1_lvl1/Data2_lvl2/Data1_lvl3/
3. Data2_lvl1/

But the array can be of any size with any number of nested arrays inside it.

Answer 1

$data = array(
        'Data1_lvl1' => array(
                            'Data1_lvl2' => "value",
                            'Data2_lvl2' => array(
                                                'Data1_lvl3' => "value"
                                            )
                        ),
        'Data2_lvl1' => 'value'
    );


function printArray($array)
{
    foreach ($array as $key=>$value)
    {
       echo $key.'/';
       if (is_array($value))
       {
          printArray($value);           
       } else {    
        echo '<br>';
        }

    }

}


printArray($data);