有一种获取查询字符串的方法。

到SQL（）

在我们的情况下，

 DB::table('users')->toSql(); 

回来

select * from users

是返回SQL查询字符串的确切解决方案。。希望这有帮助。。。

这是我可以向任何人建议的调试雄辩的最后一个查询或最终查询的最佳解决方案，尽管这也已经讨论过了：

// query builder
$query = DB::table('table_name')->where('id', 1);

// binding replaced
$sql = str_replace_array('?', $query->getBindings(), $query->toSql());

// for laravel 5.8^
$sql = Str::replaceArray('?', $query->getBindings(), $query->toSql());

// print
dd($sql);

您可以使用此包获取加载页面时正在执行的所有查询

https://github.com/barryvdh/laravel-debugbar

首先，您需要通过调用以下命令来启用查询日志：

DB::enableQueryLog();

使用DB facade查询后，您可以编写：

dd(DB::getQueryLog());

输出如下：

array:1 [▼
  0 => array:3 [▼
    "query" => "select * from `users` left join `website_user` on `users`.`id` = `website_user`.`user_id` left join `region_user` on `users`.`id` = `region_user`.`user_id` left ▶"
    "bindings" => array:5 [▶]
    "time" => 3.79
  ]
]

如果您正在使用修补程序并希望记录形成的SQL查询，可以执行以下操作

$ php artisan tinker
Psy Shell v0.9.9 (PHP 7.3.5 — cli) by Justin Hileman
>>> DB::listen(function ($query) { dump($query->sql); dump($query->bindings); dump($query->time); });
=> null
>>> App\User::find(1)
"select * from `users` where `users`.`id` = ? limit 1"
array:1 [
  0 => 1
]
6.99
=> App\User {#3131
     id: 1,
     name: "admin",
     email: "admin@example.com",
     created_at: "2019-01-11 19:06:23",
     updated_at: "2019-01-11 19:06:23",
   }
>>>

如果您使用的不是Laravel，而是Elquent包，那么：

use \Illuminate\Database\Capsule\Manager as Capsule;
use \Illuminate\Events\Dispatcher;
use \Illuminate\Container\Container;

$capsule = new Capsule;

$capsule->addConnection([
    // connection details
]);
// Set the event dispatcher used by Eloquent models... (optional)
$capsule->setEventDispatcher(new Dispatcher(new Container));

// Make this Capsule instance available globally via static methods... (optional)
$capsule->setAsGlobal();

// Setup the Eloquent ORM...(optional unless you've used setEventDispatcher())
$capsule->bootEloquent();

// Listen for Query Events for Debug
$events = new Dispatcher;
$events->listen('illuminate.query', function($query, $bindings, $time, $name)
{
    // Format binding data for sql insertion
    foreach ($bindings as $i => $binding) {
        if ($binding instanceof \DateTime) {
            $bindings[$i] = $binding->format('\'Y-m-d H:i:s\'');
        } else if (is_string($binding)) {
            $bindings[$i] = "'$binding'";`enter code here`
        }
    }

    // Insert bindings into query
    $query = str_replace(array('%', '?'), array('%%', '%s'), $query);
    $query = vsprintf($query, $bindings);

    // Debug SQL queries
    echo 'SQL: [' . $query . ']';
});

$capsule->setEventDispatcher($events);