public function __construct($file, $delimiter = ',', $maxRowLength = 4098, $skipRows = 0)
{
parent::__construct($file, $delimiter, $maxRowLength);
while ($skipRows > 0) {
parent::next();
$skipRows--;
}
// Extract the header information
$this->colNames = parent::current();
foreach ($this->colNames as $index => $name) {
if (isset($this->colIndexes[$name])) {
throw new DataFileException("Duplicate column name {$name}!");
}
$this->colIndexes[$name] = $index;
}
parent::next();
}
