在PHP中循环使用多维数组

Question

I've looked up a bunch of similar examples but still can't seem to figure out how loop through and echo the values from this array. Should be simple, but I'm dense. Help is appreciated.

array(2) { ["legend_size"]=> int(1) ["data"]=> array(2) { ["series"]=> array(2) { [0]=> string(10) "2014-01-17" [1]=> string(10) "2014-01-18" } ["values"]=> array(1) { ["Begin Session"]=> array(2) { ["2014-01-17"]=> int(1073) ["2014-01-18"]=> int(1122) } } } } 

I'm trying to return the int values for the "values" array.

Answer 1

Given the name of your array is, for the sake of example, $mdarr, and that the construction of the array is going to be roughly the same every time, it is as simple as:

$values_i_want = $mdarr['data']['values'];

If the values array you are looking for is going to be in different array depths in different cases, recursion combined with type checking will do the trick:

//returns values array or nothing if it's not found
function get_values_array($mdarr) {
    foreach ($mdarr as $key => $val) {
        if ($key == 'values') {
            return $val;
        } else if (is_array($val)) {
            return get_values_array($val);
        }
    }
}