/**
*
* @param string $str
* @param string $from
* @param string $to
* @return string
*/
protected function convertEncoding($str, $from, $to)
{
return $str !== false ? Converter::convertEncoding($str, $from, $to, $this->dialect->getTranslit()) : $str;
}
/**
*
* @param resource|null $fileHandler
* @return array
*
* @throws \InvalidArgumentException
*/
protected function readLine($fileHandler)
{
$row = null;
if (!is_resource($fileHandler)) {
throw new \InvalidArgumentException('A valid file handler resource must be passed as parameter.');
}
if (!feof($fileHandler)) {
$enclosure = $this->dialect->getEnclosure();
$escape = $this->dialect->getEscape();
$line = fgetcsv($fileHandler, null, $this->dialect->getDelimiter(), $enclosure, $escape);
if ($line !== false) {
$trim = $this->dialect->getTrim();
$translit = $this->dialect->getTranslit();
$detectedEncoding = $this->detectedEncoding;
if ($this->position <= 0) {
$line[0] = $this->removeBom($line[0]);
}
$row = array_map(function ($var) use($enclosure, $escape, $trim, $translit, $detectedEncoding) {
// workaround when escape char is not equals to double quote
if ($enclosure === '"' && $escape !== $enclosure) {
$var = str_replace($escape . $enclosure, $enclosure, $var);
}
$var = Converter::convertEncoding($var, $detectedEncoding, 'UTF-8', $translit);
return $trim ? trim($var) : $var;
}, $line);
$notEmptyCount = count(array_filter($row, function ($var) {
return $var !== false && $var !== null && $var !== '';
}));
if ($this->dialect->getSkipEmptyLines() && 0 === $notEmptyCount) {
$row = false;
}
}
}
return $row;
}
