Question

My question is about how to properly handle the following warning:

Warning: fputcsv() expects parameter 2 to be array, boolean given

The offending lines are:

foreach($participantInfo as $fields)
{
    fputcsv($participantFile, $fields);
}

When I did a var_dump on $fields, I found two arrays as expected, but also a final bool(false). Other than this, the code works as expected. Is there an appropriate way to handle the final bool, or should I just suppress the function warnings?

Answer 1

$participantInfo  = array_filter($participantInfo );
foreach($participantInfo as $fields)
{
    fputcsv($participantFile, $fields);
}

This will remove all the entries eqal to FALSE from $participantInfo, deeper dimensions wil be untouched as your array is multidimensional.