Php Laravel 5-在何处定义函数并在视图中调用它们&;控制器
我有以下函数,想从视图中调用它。基本上我想把所有常用函数放在一个文件中。我不知道在哪里创建该文件,以及如何在控制器和视图中调用它Php Laravel 5-在何处定义函数并在视图中调用它们&;控制器,php,helper,laravel-5,Php,Helper,Laravel 5,我有以下函数,想从视图中调用它。基本上我想把所有常用函数放在一个文件中。我不知道在哪里创建该文件,以及如何在控制器和视图中调用它 <?php namespace App\Http\Controllers; use App\Http\Controllers\Controller; use DB; class CommonController extends Controller { public function BytesToMB($bytes=0) { if(empty($
<?php namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use DB;
class CommonController extends Controller {
public function BytesToMB($bytes=0)
{
if(empty($bytes))
return 0;
$kb = ceil($bytes/1024);
$mb = ceil($kb/1024);
return $mb;
}
}
但我得到了一个错误:
Class 'App\Http\Controllers\Common' not found
好的,新的尝试。您没有使用完整的类名并添加static关键字:
<?php
namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use DB;
class CommonController extends Controller {
public static function BytesToMB($bytes=0)
{
if(empty($bytes))
return 0;
$kb = ceil($bytes/1024);
$mb = ceil($kb/1024);
return $mb;
}
}
我添加了公共静态,但不工作。我认为这是第二件事,因为错误表明找不到类。我编辑了我的答案,因为我太晚才意识到课堂本身的缺失:pnot不起作用,我也编辑了问题。我只尝试了Common而不是CommonController,但它是一样的。。只需编辑对//的回答即可,如果您在同一命名空间中,则无需定义,请使用App\Http\Controllers\CommonController;还请告诉我如何在视图中访问此功能!
<?php
namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use DB;
class CommonController extends Controller {
public static function BytesToMB($bytes=0)
{
if(empty($bytes))
return 0;
$kb = ceil($bytes/1024);
$mb = ceil($kb/1024);
return $mb;
}
}
<?php
namespace App\Http\Controllers;
// You do not need to define this, if you are in the same namespace
use App\Http\Controllers\CommonController;
class SongsController extends Controller {
public function index($id)
{
echo CommonController::BytesToMB('7012187');
}
}
<?php
namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use DB;
class CommonController extends Controller {
protected function BytesToMB($bytes=0)
{
if(empty($bytes))
return 0;
$kb = ceil($bytes/1024);
$mb = ceil($kb/1024);
return $mb;
}
}
<?php
namespace App\Http\Controllers;
// You do not need to define this, if you are in the same namespace
use App\Http\Controllers\CommonController;
class SongsController extends CommonController {
public function index($id)
{
echo $this->bytesToMB('7012187');
}
}