vel CSV spceific column modifier based on another file

laravel_csv_modifier.php

use Illuminate\Support\Collection;
function csvToArray($filename = '', $delimiter = ',')
{
    if (!file_exists($filename) || !is_readable($filename))
        return false;

    $header = null;
    $data = array();
    if (($handle = fopen($filename, 'r')) !== false)
    {
        while (($row = fgetcsv($handle, 1000, $delimiter)) !== false)
        {
            if (!$header)
                $header = $row;
            else
                $data[] = array_combine($header, $row);
        }
        fclose($handle);
    }

    return $data;
}
$csvFileName = "err_accounts.csv";
$csvFile = '/project_name/public/storage/csv/all_accounts.csv';
$all_accounts = new Collection(csvToArray($csvFile));
// dump($all_accounts->count());
 
  
$csvFile = '/project_name/public/storage/csv/err_accounts.csv';
$err_accounts = new Collection(csvToArray($csvFile));



$updated_acc = $err_accounts->map(function($acc) use($all_accounts){
  	$account = $all_accounts->where('Email',$acc['Username'])->first();
  	
  	if($account){
    	$acc['Password'] = $account['Password'];
    }
  	return $acc;
      
  		
  
});

$csvFile = '/project_name/public/storage/csv/err_accounts_fixed.csv';
$fp = fopen($csvFile, 'wb');

foreach ($updated_acc as $fields) {
    fputcsv($fp, $fields);
}

fclose($fp);