Strange Illegal string offset in foreach from mysqli_fetch_array() and mysqli_fetch_assoc()

Question

I am just testing out a data set I am looking to return from the DB. I am running this in command line mode. When I var_dump() the data, I can see data being returned, but when

Answer 1

mysqli_fetch_array returns an array, you're traversing the array with the foreach, $data_unit will most likely be a single element and not an array... try just

foreach($data as $data_unit){
    echo $data_unit."\r";
}

or use mysqli_fetch_assoc() and try

foreach($data as $fieldname => $data_unit){
    echo "$fieldname = $data_unit\r";
}