Question

I am trying to error check a form that on submitting creates an array, however no value in that error can be empty, how can I check this using PHP, the array looks like this,

Array
(
    [campaign_title] => 
    [campaign_keyword] => 
    [introduction] => 
    [position] => left
    [campaign_headline] => Array
        (
            [0] => 
        )

    [article] => Array
        (
            [0] => 
        )

    [save_multiple] => Save
)

I know I would need to do something like below but from then I am totally lost,

foreach($post as $k=>$v) {
    //do some loop to check each key as a value?
}

Answer 1

The following function will check all values in the array, regardless of depth. It will return TRUE when it finds an empty value. Otherwise it will return FALSE.

function hasEmptyValues(array $array)
{
    foreach(new RecursiveIteratorIterator(
        new RecursiveArrayIterator($array)) as $v) {
            if(empty($v)) return TRUE;
    }
    return FALSE;
}