how to find out if csv file fields are tab delimited or comma delimited

Question

how to find out if csv file fields are tab delimited or comma delimited. I need php validation for this. Can anyone plz help. Thanks in advance.

Answer 1

you can simply use the fgetcsv(); PHP native function in this way:

function getCsvDelimeter($file)
{
    if (($handle = fopen($file, "r")) !== FALSE) {
        $delimiters = array(',', ';', '|', ':'); //Put all that need check

        foreach ($delimiters AS $item) {
            //fgetcsv() return array with unique index if not found the delimiter
            if (count(fgetcsv($handle, 0, $item, '"')) > 1) {
                $delimiter = $item;

                break;
            }
        }
    }

    return (isset($delimiter) ? $delimiter : null);
}