列出 Laravel 视图中的所有注册变量
我正在使用 Laravel 5.我想知道哪些是传递给视图本身内部视图的所有变量.
I am using Laravel 5. I would like to know which are all variables passed to a view inside the view itself.
由于所有变量都在视图范围内，我认为我可以使用通用的 PHP 函数:get_defined_vars(); http://php.net/manual/en/function.get-defined-vars.php
Since all variables are in the view scope I thought I could use the generic PHP function: get_defined_vars(); http://php.net/manual/en/function.get-defined-vars.php
像这样:
// resources/view/home.blade.php
<html>
<body>
<?php print_r(get_defined_vars()); ?>
</body>
</html>
但是我想知道是否有更好的方法(例如View::getData())
But I would like to know if there is a better way (something like View::getData())
注意: get_defined_vars() 不起作用，因为它返回了数百个无用的变量(Laravel 组件)
Note: get_defined_vars() deosn't work becausee it returns hundreds of useless variables (Laravel components)
这是一个使用 print_r(get_defined_vars()) 的片段(部分)(我认为它进入无限递归循环):
This is a snippet (partial) using print_r(get_defined_vars()) (i think it goes in infinite recursion loop):
Array
(
[__path] => C:
etlaravelstorageframeworkviews/8e030a77b0bdbacc2c4182fc04420d1d
[__data] => Array
(
[__env] => IlluminateViewFactory Object
(
[engines:protected] => IlluminateViewEnginesEngineResolver Object
(
[resolvers:protected] => Array
(
[php] => Closure Object
(
[this] => IlluminateViewViewServiceProvider Object
(
[app:protected] => IlluminateFoundationApplication Object
(
[basePath:protected] => C:
etlaravel
[hasBeenBootstrapped:protected] => 1
[booted:protected] => 1
[bootingCallbacks:protected] => Array
(
[0] => Closure Object
(
[static] => Array
(
[instance] => IlluminateBusBusServiceProvider Object
(
[defer:protected] => 1
[app:protected] => IlluminateFoundationApplication Object
*RECURSION*
)
)
[this] => IlluminateFoundationApplication Object
*RECURSION*
)
[1] => Closure Object
(
[static] => Array
(
[instance] => IlluminateTranslationTranslationServiceProvider Object
(
[defer:protected] => 1
[app:protected] => IlluminateFoundationApplication Object
*RECURSION*
)
)
[this] => IlluminateFoundationApplication Object
*RECURSION*
)
)
[bootedCallbacks:protected] => Array
(
)
[terminatingCallbacks:protected] => Array
(
)
[serviceProviders:protected] => Array
(
[0] => IlluminateEventsEventServiceProvider Object
(
[app:protected] => IlluminateFoundationApplication Object
*RECURSION*
[defer:protected] =>
)
推荐答案
使用 dd 助手:
{{ dd(get_defined_vars()) }}
阅读更多:https://laravel.com/docs/5.4/helpers#method-dd
更新(thx，@JoeCoder):您可以通过执行以下操作进一步减少无用"变量:
Update (thx, @JoeCoder): you can further cutdown on the "useless" variables by doing:
{{ dd(get_defined_vars()['__data']) }}
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