Laravel在每次夹紧完成后都会执行操作？

Question

让我们下面的例子：

User::where('is_active', true)->each(function (User $user){ 
    // do something 

}, 500); 

所以，如果我有2000个用户，有没有办法，每次做一些用户端的新块？

Answer 1

User::where('is_active', true)->chunk(500, function (Collection $users) { 
    $users->each(function (User $user) { 
     // Do per-user stuff here 
    }); 
    // Do per-chunk stuff here 
} 

这应该做的伎俩。请记住，最后一个块可能包含少于500个用户。如果必须精确到每500，请检查收集大小;

User::where('is_active', true)->chunk(500, function (Collection $users) { 
    $users->each(function (User $user) { 
     // Do per-user stuff here 
    }); 
    if ($users->count() == 500) { 
     // Do per-chunk stuff here 
    } 
} 

希望这会有所帮助。

Answer 2

如果你想使用each()帮手，你需要手动完成。难道是这样的：

$counter = 0; 
$chunk = 500; 

User::where('is_active', true)->each(function (User $user) use(&$counter, $chunk) { 
    // Do stuff for each user. 

    $counter += 1; 
    if ($counter === $chunk) { 
     $counter = 0; 
     // Do something after each chunk. 
     $this->doSomething(); 
    } 
}, $chunk); 

if (!$counter) 
    // Do something for the last chunk. 
    $this->doSomething(); 
}