laravel小技巧

1、自增字段不修改updated_at

 $mE= Merchant::where('user_id',$id)->first();  $mE->timestamps = false; $mE->increment('read_count');

2、全局函数

在composer.json里面加入files

"autoload": { "classmap": [ "database/seeds", "database/factories" ], "psr-4": { "App\\": "app/" }, "files": [ "app/Common/common.php" ] },

执行 composer dump-auto

3、301重定向

header("Location: http://www.baidu.com",TRUE,301);exit;

也可以

header(‘HTTP/1.1 301 Moved Permanently‘); header(‘Location: http://www.baidu.com‘); exit;

4、abc.com跳转到www.abc.com

if($_SERVER['HTTP_HOST'] == 'abc.com'){ header('HTTP/1.1 301 Moved Permanently'); header('Location: '.'https://www.abc.com/'.ltrim(\Request::path(),'/')); exit; }

5、配置伪静态

1、可以通过rewrite

2、通过laravel 301路由实现

Route::get('{prefix}/{id}',function(){ header('HTTP/1.1 301 Moved Permanently'); header('Location: '.'http://www.abc.com/'.ltrim(Request::path().'.html','/')); exit; })->where(['id'=>'(\d+)']);

可以匹配到 article/1  /post/1  answer/1 等，匹配后  article/1.html  /post/1.html  answer/1.html

6、使用递归获取父数组

$parentArray = Category::all()->pluck('parent_id','id'); $result = []; getParentArray(20, $result, $parentArray); function getParentArray($id, $res, $pA){ if(isset($pA[$id])) { $res[] = $pA[$id]; return getParentArray($pA[$id], $result, $pA); } return $res; }