如何在Laravel chunk函数中添加progressbar

Question

我想对customer表做些什么，因为有很多记录，所以我将使用chunk函数来处理每100条记录。我还想添加一个进度条来显示进度。

但是我写的代码不起作用。错误发生在"$bar"变量。

$count = DB::table('customers')->count();
$bar = $this->output->createProgressBar($count);

DB::table('customers')->chunk(100, function ($customers,$bar) {
  foreach($customers as $customer) {
   //do something with customer
   $bar->advance();
  }
  $bar->finish();
}

Answer 1

前面的答案是50%正确。

DB:：表（'customers'）-

$count = DB::table('customers')->count();
$bar = $this->output->createProgressBar($count);

DB::table('customers')->chunk(100, function ($customers,$bar) use($bar) {
  foreach($customers as $customer) {
   //do something with customer
   $bar->advance();
  }
});
$bar->finish();

Answer 2

这是正确的方法：

->chunk(100, function ($users) use ($bar){}