CsvParser.php
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<?php
/**
* Created by PhpStorm.
* User: Cibermag
* Date: 26.08.2015
* Time: 17:00
*/
namespace backend\components\parsers;
use Yii;
use yii\base\ErrorException;
use common\components\debug\CustomVarDamp;
class CsvParser
{
/** @var bool */
public $hasHeaderRow = false;
/** @var resource */
public $file;
/** @var out encoding charset */
public $out_charset = 'UTF-8';
/** @var out encoding charset */
public $in_charset = 'windows-1251';
/** @var int - first line for parsing */
public $first_line = 0;
public $last_line = 10;
/** @var int - first column for parsing */
public $first_column = 0;
/** @var array - array of headers values */
public $keys;
public $delimiter = ';';
public $auto_detect_start_position = false;
public $min_column_quantity = 5;
public function setup()
{
$this->file->setCsvControl($this->delimiter);
$this->file->setFlags(\SplFileObject::READ_CSV);
$this->file->setFlags(\SplFileObject::SKIP_EMPTY);
// $this->file->setFlags(\SplFileObject::READ_AHEAD);
if ($this->auto_detect_start_position) {
$this->first_line = $this->detectStartPosition();
}
// CustomVarDamp::dumpAndDie($this);
// echo $this->file->key();
// $this->file->seek($this->first_line + 1);
// echo $this->file->key();
}
protected function detectStartPosition()
{
$first_line = 0;
$find = false;
while (!$find) {
$j = 0;
$row = $this->readRow();
if ($row === false) {
continue;
}
$first_line++;
for ($i = 1; $i <= count($row); $i++) {
if ($row[$i - 1] <> '') {
$j++;
}
if ($j >= $this->min_column_quantity) {
$find = true;
break;
}
}
}
return $first_line;
}
/**
* @return array
* @throws InvalidFileException
*/
public function read()
{
// @todo add comments
$return = [];
//CustomVarDamp::dump(debug_print_backtrace(1,2));
$line = 0;
$this->keys = NULL;
CustomVarDamp::dump($this->file->key());
while (($row = $this->readRow()) !== FALSE) {
$line++;
if ($this->hasHeaderRow) {
if ($this->keys === NULL) {
$this->keys = array_values($row);
} else {
if (count($this->keys) !== count($row)) {
//
Yii::warning("Invalid columns detected on line #$line .");
return $return;
}
$return[] = array_combine($this->keys, $row);
}
} else {
$return[] = $row;
}
if(($this->last_line) && ($line > $this->last_line)){
// CustomVarDamp::dump($this->last_line);
// CustomVarDamp::dump($line);
break;
}
}
$this->closeHandler();
//CustomVarDamp::dumpAndDie($return);
return $return;
}
protected function closeHandler()
{
$this->file = NULL;
}
protected function readRow()
// @todo add comments
{
$row = $this->file->fgetcsv();
//
if (is_array($row)) {
// $row = array_slice( $row, $this->first_column );
$row = Encoder::encodeArray($this->in_charset, $this->out_charset, $row);
}
if (is_null($row))
$row = false;
// if ($this->keys !== NULL)
// @$clear_arr[3] = ValueFilter::pricefilter($clear_arr[3]);{}{}{}
return $row;
}
}