Реорганизация CSV-файла

<?php
$fh = fopen ( 'Acura.csv', 'r' );
for($i=0; $info = fgetcsv ($fh, 1000, ";"); $i++)
{
list($vendor, $model, $year, $modification, $name, $type) = $info;
 
}
fclose ( $fh );
 
$csv = fopen('final.csv', 'a+');
       createCsv($data, $csv);
       fclose($csv);
        
        function createCsv($data,$csv)
    {
        $head = array('IE_XML_ID','IE_NAME','IE_CODE','IC_GROUP0','IC_GROUP1','IC_GROUP2','IC_GROUP3');
          fputcsv($csv, $head ,';'); 
        
 
      
       }
    
         
    ?>

function getNewRow($row) {
    $row = str_replace('"', '', $row);
    $items = explode(';', $row);
    $newRow = mb_convert_case(preg_replace('~[ \./]+~', '-', implode('-', array_slice($items, 0, -2))), MB_CASE_LOWER);
    $temp = preg_replace('~[R /]+~', '_', $items[4]);
    $newRow .= '-' . $temp;
    $newRow .= ';' . str_replace(' ', '', $items[4]) . ';';
    $newRow .= $temp . ';';
    $newRow .= implode(';',  array_slice($items, 0, 4));
 
    return $newRow;
}
$file = file('file1.csv', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$file = array_slice($file, 1);
$result = 'IE_XML_ID;IE_NAME;IE_CODE;IC_GROUP0;IC_GROUP1;IC_GROUP2;IC_GROUP3';
foreach ($file as $line) {
    $result .= getNewRow($line);
}
file_put_contents('file2.csv', $result);

$_ = file('file.csv');
$now_csv_file = 'now_csv_file.csv';
    unset($_[0]);
$arr = []; $i = 0;
array_map(function($v) use (&$arr,&$i){
    $text = str_replace(['"'],[''],$v);
     list($a,$b,$c,$d,$e) = explode(";",$text);
$temp_1 = preg_split("~\.|\\s+~",$d,-1,PREG_SPLIT_NO_EMPTY);
$temp_2 = str_replace(['/','R',' '],['_','_',''],$e);
         if ($i == 0) 
            $arr[$i++] = 'IE_XML_ID;IE_NAME;IE_CODE;IC_GROUP0;IC_GROUP1;IC_GROUP2;IC_GROUP3'; 
     $arr[$i] = str_replace('"','',strtolower($a.'-'.$b.'-'.$c.'-'.$temp_1[0].'-'.$temp_1[1].'-'.$temp_1[2].'-'.$temp_2));
     $arr[$i] .= ';'.str_replace(' ','',$e).';'.$temp_2.';'.$a.';'.$b.';'.$c.';'.$d;
    $i++;
},$_);
        file_put_contents($now_csv_file,implode("\r\n",$arr),FILE_APPEND);

$in = fopen('in.csv', 'r');
$out = fopen('out.csv', 'w');
 
fgetcsv($in, 0, ';');
fputcsv($out, ['IE_XML_ID', 'IE_NAME', 'IE_CODE', 'IC_GROUP0', 'IC_GROUP1', 'IC_GROUP2', 'IC_GROUP3']);
 
while ($row = fgetcsv($in, 0, ';')) {
    $row2 = str_replace([' ', '.'], '-', $row[3]);
    $row3 = str_replace([' ', '/', 'R'], ['_', '_', ''], $row[4]);
    fputcsv($out, [
        strtolower("$row[0]-$row[1]-$row2-$row3"),
        str_replace(' ', '', $row[4]),
        $row3, $row[0], $row[1], $row[2], $row[3]
    ], ';');
}
 
fclose($in);
fclose($out);