我正在構建一個簡單的 Laravel 路由以在有人去時顯示一個陣列 http://127.0.0.1:8000/planets
但是我需要做一個過濾器來檢查陣列上發送的請求是什么。例如：http://127.0.0.1:8000/planets?planet=mars
我需要確保如果存在 GET 引數，則根據其中是否包含行星名稱來過濾陣列。這樣我們可以更快地過濾頁面的結果。
我目前擁有 Web.php 的代碼：
<?php
use Illuminate\Support\Facades\Route;
/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/
Route::get('/planets', function () {
$planets = [
[
'name' => 'Mars',
'description' => 'Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, being larger than only Mercury.'
],
[
'name' => 'Venus',
'description' => 'Venus is the second planet from the Sun. It is named after the Roman goddess of love and beauty.'
],
[
'name' => 'Earth',
'description' => 'Our home planet is the third planet from the Sun, and the only place we know of so far thats inhabited by living things.'
]
];
return view('welcome', ['planets'=>$planets]);
});
還有我的歡迎之刃：
<!DOCTYPE html>
<html lang="{{ str_replace('_', '-', app()->getLocale()) }}">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Laravel</title>
<link href="https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&display=swap" rel="stylesheet">
<style>
html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}[hidden]{display:none}html{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;line-height:1.5}*,:after,:before{box-sizing:border-box;border:0 solid #e2e8f0}a{color:inherit;text-decoration:inherit}svg,video{display:block;vertical-align:middle}video{max-width:100%;height:auto}.bg-white{--bg-opacity:1;background-color:#fff;background-color:rgba(255,255,255,var(--bg-opacity))}.bg-gray-100{--bg-opacity:1;background-color:#f7fafc;background-color:rgba(247,250,252,var(--bg-opacity))}.border-gray-200{--border-opacity:1;border-color:#edf2f7;border-color:rgba(237,242,247,var(--border-opacity))}.border-t{border-top-width:1px}.flex{display:flex}.grid{display:grid}.hidden{display:none}.items-center{align-items:center}.justify-center{justify-content:center}.font-semibold{font-weight:600}.h-5{height:1.25rem}.h-8{height:2rem}.h-16{height:4rem}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.leading-7{line-height:1.75rem}.mx-auto{margin-left:auto;margin-right:auto}.ml-1{margin-left:.25rem}.mt-2{margin-top:.5rem}.mr-2{margin-right:.5rem}.ml-2{margin-left:.5rem}.mt-4{margin-top:1rem}.ml-4{margin-left:1rem}.mt-8{margin-top:2rem}.ml-12{margin-left:3rem}.-mt-px{margin-top:-1px}.max-w-6xl{max-width:72rem}.min-h-screen{min-height:100vh}.overflow-hidden{overflow:hidden}.p-6{padding:1.5rem}.py-4{padding-top:1rem;padding-bottom:1rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.pt-8{padding-top:2rem}.fixed{position:fixed}.relative{position:relative}.top-0{top:0}.right-0{right:0}.shadow{box-shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px 0 rgba(0,0,0,.06)}.text-center{text-align:center}.text-gray-200{--text-opacity:1;color:#edf2f7;color:rgba(237,242,247,var(--text-opacity))}.text-gray-300{--text-opacity:1;color:#e2e8f0;color:rgba(226,232,240,var(--text-opacity))}.text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}.text-gray-500{--text-opacity:1;color:#a0aec0;color:rgba(160,174,192,var(--text-opacity))}.text-gray-600{--text-opacity:1;color:#718096;color:rgba(113,128,150,var(--text-opacity))}.text-gray-700{--text-opacity:1;color:#4a5568;color:rgba(74,85,104,var(--text-opacity))}.text-gray-900{--text-opacity:1;color:#1a202c;color:rgba(26,32,44,var(--text-opacity))}.underline{text-decoration:underline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.w-5{width:1.25rem}.w-8{width:2rem}.w-auto{width:auto}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}@media (min-width:640px){.sm\:rounded-lg{border-radius:.5rem}.sm\:block{display:block}.sm\:items-center{align-items:center}.sm\:justify-start{justify-content:flex-start}.sm\:justify-between{justify-content:space-between}.sm\:h-20{height:5rem}.sm\:ml-0{margin-left:0}.sm\:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm\:pt-0{padding-top:0}.sm\:text-left{text-align:left}.sm\:text-right{text-align:right}}@media (min-width:768px){.md\:border-t-0{border-top-width:0}.md\:border-l{border-left-width:1px}.md\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1024px){.lg\:px-8{padding-left:2rem;padding-right:2rem}}@media (prefers-color-scheme:dark){.dark\:bg-gray-800{--bg-opacity:1;background-color:#2d3748;background-color:rgba(45,55,72,var(--bg-opacity))}.dark\:bg-gray-900{--bg-opacity:1;background-color:#1a202c;background-color:rgba(26,32,44,var(--bg-opacity))}.dark\:border-gray-700{--border-opacity:1;border-color:#4a5568;border-color:rgba(74,85,104,var(--border-opacity))}.dark\:text-white{--text-opacity:1;color:#fff;color:rgba(255,255,255,var(--text-opacity))}.dark\:text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}.dark\:text-gray-500{--tw-text-opacity:1;color:#6b7280;color:rgba(107,114,128,var(--tw-text-opacity))}}
</style>
<style>
body {
font-family: 'Nunito', sans-serif;
font-weight: bolder;
}
</style>
</head>
<body class="antialiased">
@foreach ($planets as $planet)
<ul>
<li>{{$planet['name']}}</li>
<p>{{$planet['description']}}</p>
</ul>
@endforeach
</body>
</html>
uj5u.com熱心網友回復：
試試這個代碼：
$uri_path = $_SERVER['REQUEST_URI'];
$uri_parts = explode('=', $uri_path);
$request_url = end($uri_parts);
dd($request_url);
uj5u.com熱心網友回復：
在您的后端，您可以通過以下方式了解您是否有 GET 引數
isset($_GET["planet"])
或通過
Input::get('start')
讓我們假設您有一個$planet默認為的物件，null如果它是 truey，它會被 GET 引數覆寫。
if (!!$planet) {
$planets = [$planet]
}
uj5u.com熱心網友回復：
LaravelIlluminate\Http\Request物件上有一個query方法，允許您訪問查詢字串引數。
$request->query('param');
因此，對于您的場景并給出 URL example.com/planets?names=mars,earth，您將按如下方式獲取行星名稱：
$names = $request->query('names');
這將導致$names變數具有字串 value mars,earth。
從這里您想用來explode分隔各個名稱：
$names = explode(',', $request->query('names');
這次$names是一個包含兩個元素的陣列，mars并且earth。
然后，您可以使用whereInLaravelCollections上可用的方法將您的行星過濾為僅在$names陣列中找到的行星。
$planets = collect($planets)
->whereIn('name', array_map(fn($name) => strtolower($name), $names))
->all();
請注意，為了上述作業，我做了兩件事。
- 我將您陣列中的所有行星名稱都
$planets設為小寫 - 我使用
array_map將查詢引數值轉換為小寫以與$planets陣列進行比較
這應該可以減輕大小寫問題（因此人們鍵入mars或MARS其他變體）應該被正確捕獲。
把它們放在一起，你應該有如下的東西：
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
Route::get('/planets', function (Request $request) {
$planets = [
[
'name' => 'mars',
'description' => 'Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, being larger than only Mercury.'
],
[
'name' => 'venus',
'description' => 'Venus is the second planet from the Sun. It is named after the Roman goddess of love and beauty.'
],
[
'name' => 'earth',
'description' => 'Our home planet is the third planet from the Sun, and the only place we know of so far thats inhabited by living things.'
]
];
if ($request->query('names')) {
$names = explode(',', $request->query('names'));
$planets = collect($planets)->whereIn('name', array_map(fn($name) => strtolower($name), $names))->all();
}
return view('welcome', compact('planets'));
});
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