src/Helpers.php
public static function isIndexedArray($array)
    {
        if (! is_array($array)) {
            return false;
        }

        foreach ($array as $key => $value) {
            if (! is_numeric($key)) {
                return false;
            }
        }

        return true;
    }
public static function isIndexedArray($array)
    {
        if (! is_array($array)) {
            return false;
        }

        foreach ($array as $key => $value) {
            if (! is_numeric($key)) {
                return false;
            }
        }

        return true;
    }
public static function isIndexedArray ( $ array ) { if ( ! is_array ( $ array ) ) { return false ; } foreach ( $ array as $ key => $ value ) { if ( ! is_numeric ( $ key ) ) { return false ; } } return true ; }
Determines if an array is numerically indexed.

@param  mixed  $array
@return bool
Determines if an array is numerically indexed .