PHP框架Laravel的小技巧两则_PHP
用 Laravel 作为 PHP 开发框架很久了,但是有些官方文档中没有覆盖到的地方,每隔一段时间又会忘记。最近做了一点简单的整理,顺便记录下来备忘。
1. Route::controller 路由命名:
用 Route::controller 可以减少路由定制中的大量工作,但是有时候需要对某个特定的路由命名以便使用,但是 Route::controller 方法是批量指定了一个 Controller 中所有方法的路由,这要怎么命名呢?可以用controller($uri, $controller, $names = array()) 中的第三个参数,这是一个数组,数组的 key 是方法,数组的 value 是命名。
代码如下:
// 该函数的签名:
public function controller($uri, $controller, $names = array())
// 不命名一般使用:
Route::controller('admin', 'AdminController');
// 需要对其中的部分方法命名的话:
Route::controller('admin', 'AdminController', array(
'getIndex' => 'admin.index',
'getLogin' => 'admin.login',
'postLogin' => 'admin.login'
));
2. 根据系统变量判断当前运行环境
系统默认的判断是否本地环境的方法是根据在 'local' 数组中指定一组作为本地环境的主机名,比如在办公机、Macbook上都要做开发,你就要把两个主机名都写进去,我觉得这样很麻烦。改成了根据 $_SERVER['LARAVEL_ENV'] 来判断,这样我可以在所有开发机中都定义 'LARAVEL_ENV' 的环境变量,值为 'local',于是在开发机就会自动识别为 'local' 环境,而其它情况则是 'production'。
代码如下:
// 默认的写法是根据主机名判断是否本地环境
$env = $app->detectEnvironment(array(
'local' => array('homestead');
));
// 修改为先判断系统变量是否指定,没有才判断主机名
$env = $app->detectEnvironment(function(){
$_env = getenv('LARAVEL_ENV') ? getenv('LARAVEL_ENV') : array(
'local' => array('homestead')
);
return $_env;
});
// 这实际是去读取 $_SERVER['LARAVEL_ENV'] 的值
// 在 Apache 中,可以用 SetEnv 设置,
// 在 Nginx 中,可以用 fastcgi_param 设置

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