if (!defined(‘PHP_VERSION_ID’) || (defined(‘PHP_VERSION_ID’) && PHP_VERSION_ID < 80000)) {
if (!function_exists(‘str_contains’)) {
/**
* Checks if a string contains another
*
* @param string $haystack The string to search in
* @param string $needle The string to search
* @return boolean Returns TRUE if the needle was found in haystack, FALSE otherwise.
*/
function str_contains(string $haystack, string $needle): bool
{
return strpos($haystack, $needle) !== false;
}
}
}
if (!defined('PHP_VERSION_ID') || (defined('PHP_VERSION_ID') && PHP_VERSION_ID < 80000)) {
if (!function_exists('str_contains')) {
/**
* Checks if a string contains another
*
* @param string $haystack The string to search in
* @param string $needle The string to search
* @return boolean Returns TRUE if the needle was found in haystack, FALSE otherwise.
*/
function str_contains(string $haystack, string $needle): bool
{
return strpos($haystack, $needle) !== false;
}
}
}
/* styles applied when screen has a width of at least 800px */
@mediascreenand (min-width: 800px){
main{
width: 760px;
}
}
/* default styles */
main {
width: 400px;
}
/* styles applied when screen has a width of at least 800px */
@media screen and (min-width: 800px) {
main {
width: 760px;
}
}
/* default styles */
main {
width: 400px;
}
/* styles applied when screen has a width of at least 800px */
@media screen and (min-width: 800px) {
main {
width: 760px;
}
}
/**
* Echo exposes an expressive API for subscribing to channels and listening
* for events that Laravel broadcasts. Echo and event broadcasting
* allows your team to build robust real-time web applications quickly.
*/
import Echo from “laravel-echo”;
window.Pusher = require(“pusher-js”);
window.Echo = new Echo({
broadcaster: “pusher”,
key: process.env.MIX_PUSHER_APP_KEY,
cluster: process.env.MIX_PUSHER_APP_CLUSTER,
forceTLS: true
});
window._ = require("lodash");
window.axios = require("axios");
window.moment = require("moment");
window.axios.defaults.headers.common["X-Requested-With"] = "XMLHttpRequest";
window.axios.defaults.headers.post["Content-Type"] =
"application/x-www-form-urlencoded";
window.axios.defaults.headers.common.crossDomain = true;
window.axios.defaults.baseURL = "/api";
let token = document.head.querySelector('meta[name="csrf-token"]');
if (token) {
window.axios.defaults.headers.common["X-CSRF-TOKEN"] = token.content;
} else {
console.error("CSRF token not found");
}
/**
* Echo exposes an expressive API for subscribing to channels and listening
* for events that Laravel broadcasts. Echo and event broadcasting
* allows your team to build robust real-time web applications quickly.
*/
import Echo from "laravel-echo";
window.Pusher = require("pusher-js");
window.Echo = new Echo({
broadcaster: "pusher",
key: process.env.MIX_PUSHER_APP_KEY,
cluster: process.env.MIX_PUSHER_APP_CLUSTER,
forceTLS: true
});
<?php
use IlluminateDatabaseMigrationsMigration;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateSupportFacadesSchema;
class CreateCommentsTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create(‘comments’, function (Blueprint $table) {
$table->id();
$table->string(‘content’);
$table->string(‘author’);
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists(‘comments’);
}
}
<?php
use IlluminateDatabaseMigrationsMigration;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateSupportFacadesSchema;
class CreateCommentsTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('comments', function (Blueprint $table) {
$table->id();
$table->string('content');
$table->string('author');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('comments');
}
}
这将创建一个新的comments数据库表，并添加content和author列。
最后，要创建迁移，请运行以下命令：
php artisan migrate
php artisan migrate
php artisan migrate
3. 创建模型
在Laravel中，模型非常重要——它们是与数据库通信和处理数据管理的最可靠的方式。
要在Laravel中创建模型，我们将运行以下命令：
php artisan make:model Comment
php artisan make:model Comment
php artisan make:model Comment
接下来，打开app/models/Comment.php文件并粘贴以下代码：
<?php
namespace AppModels;
use IlluminateDatabaseEloquentFactoriesHasFactory;
macOS v10.14停止更新支持
