Config::get('database.log', false) 如果没有开启数据库日志,则手动处理,将上述illuminate.query事件的监听器写入系统内。当然传入的参数要多一些,$query, $bindings, $time, $name,分别是 SQL 语句,绑定的参数,执行的时间,以及标志名。 那么监听事件实现起来是这样的: Event::listen('illuminate.query',functi...
这个例子中我们查询了 ID 为 1 的课程及它所关联的教师及学生;这将产生 3 条 SQL操作,其中还包含了一条跨中间表(course_student)的查询,而这过程中我们不需要做任何操作,Laravel 会自动根据你 model 的定义生成对应的 Join 操作。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 select * from "courses...
$post = Post::with(['comments' => function ($query) { $query->where('content', 'like', 'Laravel学院%') ->orderBy('created_at', 'desc'); }])->where('id', '<', 5)->get(); 底层执行的 SQL 语句如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 select * from `posts...
str_contains($trace['file'], 'vendor/'); })->first(); // grab the first element of non vendor/ calls $bindings = implode(", ", $query->bindings); // format the bindings as string Log::info(" --- Sql: $query->sql Bindings: ...
首先找到tosql()方法所在的位置,Illuminate\Database\Query\Builder: /** * Get the SQL representation of the query. * * @return string*/publicfunctiontoSql() {return$this->grammar->compileSelect($this); } 接着,去Illuminate\Database\Query\Grammars\Grammar ...
());}));}protectedfunctionrunSelect(){return$this->connection->select(// $this->getBindings() 将 bindings 属性的值转换为一维数组: [100]$this->toSql(),$this->getBindings(),!$this->useWritePdo);}...publicfunctiontoSql(){$this->applyBeforeQueryCallbacks();//编译成SQL语句return$this-...
到这里要说明一下,下面这句代码实现了 数据库的连接操作 和 SQL语句送入mySql服务器进行语句编译 $this->getPdoForSelect($useReadPdo)->prepare($query) 1.Connection中有个函数bindValues(),public function bindValues($statement, $bindings) { foreach ($bindings as $key => $value) { $statement->...
public function saveSqlError($exception) $sql = $exception->getSql(); $bindings = $exception->getBindings() // Process the query's SQL and parameters and create the exact query foreach ($bindings as $i => $binding) { if ($binding instanceof \DateTime) { ...
1 <?php 2 3 //路由别名 4 5 Route::get('student/info',['as' => 'studentInfo' ,function(){ 6 7 //通过route('studentInfo')生成完成url后返回 8 return route('studentInfo'); 9 10 }]); 11 12 13 访问url:http://127.0.0.1/laravel/public/student/info 14 页面返回:http://127.0....
By default, slow queries are grouped based on the SQL query (without bindings) and the location where it occurred, but you may choose to not capture the location if you wish to group solely on the SQL query.See the slow queries recorder documentation for more information....