laravel chunk result set processing block

laravel chunk result set processing block

Brief introduction

• If you need to handle hundreds of database records, consider using chunk
  method of obtaining a small piece of a result set, each tile is then passed several
  data processing to the closure function

• advantage:

  Using the chunkmethod can be effectively reduced memory consumption when handling large amounts of data collection

Code

//场景：player表有很多数据，分块处理每次操作100条，而不是一次性操作整个数据库
Player::chunk(100, function($players){
    foreach($players as $player) {
        $player->display_status = 1;
        $player->save();
        //DB::table('player')->where('id',$player->id)->update(['display_status'=>1]);
    }
});

//闭包函数中返回 false 来终止组块的运行
DB::table('player')
    ->orderBy('id')
    ->chunk(100, function($players){ 
        // 处理结果集... 
        return false; 
    });