laravel-admin 报错 | Disk [admin] not configured, please add a disk config in `config/filesystems.php`. config/filesystems.php 添加admin 文件上传配置 'admin' => [ 'driver' => 'local', 'root' => public_path('upload'), 'visibility' => 'public', 'url' => env('APP_URL').'/upload/', ],最终效果'disks' => [ 'local' => [ 'driver' => 'local', 'root' => storage_path('app'), ], 'public' => [ 'driver' => 'local', 'root' => storage_path('app/public'), 'url' => env('APP_URL').'/storage', 'visibility' => 'public', ], 's3' => [ 'driver' => 's3', 'key' => env('AWS_KEY'), 'secret' => env('AWS_SECRET'), 'region' => env('AWS_REGION'), 'bucket' => env('AWS_BUCKET'), ], 'admin' => [ 'driver' => 'local', 'root' => public_path('upload'), 'visibility' => 'public', 'url' => env('APP_URL').'/upload/', ], ],

PHP图片旋转 代码 /* * $filename 图片地址 * $src 替换地址 * $degrees 转换度数 */ private function flip($filename='',$src='',$degrees = 90) { if(!$filename || !file_exists($filename) || !$src || !file_exists($src)){ return false; } $data = @getimagesize($filename); if($data==false)return false; //读取旧图片 switch ($data[2]) { case 1: $src_f = imagecreatefromgif($filename);break; case 2: $src_f = imagecreatefromjpeg($filename);break; case 3: $src_f = imagecreatefrompng($filename);break; } if($src_f=="")return false; $rotate = @imagerotate($src_f, $degrees,0); if(!imagejpeg($rotate,$src,100))return false; @imagedestroy($rotate); return true; }

laravel 8 自定义日志文件名|自定义目录 环境{callout color="#f0ad4e"}基于Laravel 8{/callout}代码<?php namespace App\Http\Helpers; use Illuminate\Support\Facades\DB; use Illuminate\Support\Facades\Route; use Monolog\Formatter\LineFormatter; use Monolog\Logger; use Monolog\Handler\StreamHandler; class LogHelper { private static $filename =''; // 文件记录类型 1：文件目录/日期/文件名 2：所有日志一个文件夹 private function __construct() { } private function __clone() { // TODO: Implement __clone() method. } /** * 设置日志文件名称 * @param $filename */ public static function setFilename($filename) { self::$filename = $filename; } /** * @param $message * @param array $data * @param string $filename * @param string $isDate 是否按月份分文件夹 */ private static function _save($message, $data = [],string $filename, $isDate = true) { $action = Route::current()->getActionName(); list($class, $method) = explode('@', $action); if (empty($filename)) $filename = !empty(self::$filename) ? self::$filename : $method; $log = new Logger('mylog'); if (PHP_SAPI == 'cli') { // 命令行访问脚本的，加一个cli标识和用户浏览器访问的区分开 $filename .= '_cli'; } $filename = $filename . '.log'; if ($isDate) { // 是否要按日显示 $path = storage_path('logs/' . date('Y-m-d')); } else { $path = storage_path('logs/'); } // 有时候运维没给号权限，容易导致写入日志失败 self::mkDirs($path); $path = $path . '/' . $filename; if (gettype($data) != 'array') { $message .= " " . $data; $data = []; } $microtime = microtime(); $message = '[' . substr($microtime, 0, 8) . '] ' . $message;// 记录毫秒时间 // finally, create a formatter $formatter = new LineFormatter("[%datetime%] %message% %context%\n", "Y-m-d H:i:s"); $stream = new StreamHandler($path, Logger::INFO); $stream->setFormatter($formatter); $log->pushHandler($stream); $log->info($message, $data); } /** * 日志打印 * @param string $message * @param array $data * @param string $filename */ public static function info(string $message,$data = [],string $filename='') { self::_save($message, $data, $filename); } /** * 给日志文件夹权限 * @param $dir * @param int $mode * @return bool */ private static function mkDirs($dir, int $mode = 0777) { if (is_dir($dir) || @mkdir($dir, $mode)) { return TRUE; } if (!self::mkdirs(dirname($dir), $mode)) { return FALSE; } return @mkdir($dir, $mode); } /** * 记录最后一条执行的sql * @param string $file_name * */ public static function sql(string $file_name='') { if (empty($file_name)) $file_name = !empty(self::$filename) ? self::$filename : __FUNCTION__.'_sql'; DB::listen(function ($sql) use ($file_name) { foreach ($sql->bindings as $i => $binding) { if ($binding instanceof \DateTime) { $sql->bindings[$i] = $binding->format('\'Y-m-d H:i:s\''); } else { if (is_string($binding)) { $sql->bindings[$i] = "'$binding'"; } } } $query = str_replace(array('%', '?'), array('%%', '%s'), $sql->sql); $query = vsprintf($query, $sql->bindings); LogHelper::info('sql:', $query, $file_name); }); } } 调用// 按日 按文件名 LogHelper::info('A 数组',['a','b'],'order'); // 按文件名 LogHelper::info('A 数组',['a','b'],'order'); // 只有字符串 LogHelper::info('B 字符串'); // 记录下面的执行sql LogHelper::sql(); // 输出： // [2021-04-15 11:50:37] [0.627499] sql:select * from `user` where `mobile` = '' limit 1 []

Laravel-admin 删除行｜删除回调 在模型中增加protected static function booted() { static::deleting(function ($param) { $total = 1; //在这里去做逻辑判断，$param->id 可以拿到当前操作id if ($total > 0) { throw new \Exception("无法删除"); } return true; }); }

PHP之trait的用法 trait{callout color="#f0ad4e"}PHP 实现了一种代码复用的方法，称为 traitphp从以前到现在一直都是单继承的语言，无法同时从两个基类中继承属性和方法，为了解决这个问题，php出了Trait这个特性{/callout}{message type="info" content="例子"/}<?php trait Dog{ public $name="dog"; public function bark(){ echo "This is dog"; } } class Animal{ public function eat(){ echo "This is animal eat"; } } class Cat extends Animal{ use Dog; public function drive(){ echo "This is cat drive"; } } $cat = new Cat(); $cat->drive(); echo "<br/>"; $cat->eat(); echo "<br/>"; $cat->bark(); 输出结果为: This is cat drive This is animal eat This is dog ?>优先级#1{callout color="#f0ad4e"}从基类继承的成员被插入的 SayWorld Trait 中的 MyHelloWorld 方法所覆盖。其行为 MyHelloWorld 类中定义的方法一致。优先顺序是当前类中的方法会覆盖 trait 方法，而 trait 方法又覆盖了基类中的方法。{/callout}<?php class Base { public function sayHello() { echo 'Hello '; } } trait SayWorld { public function sayHello() { parent::sayHello(); echo 'World!'; } } class MyHelloWorld extends Base { use SayWorld; } $o = new MyHelloWorld(); $o->sayHello(); ?>结果为Hello World!{dotted startColor="#ff6c6c" endColor="#1989fa"/}优先级#2<?php trait HelloWorld { public function sayHello() { echo 'Hello World!'; } } class TheWorldIsNotEnough { use HelloWorld; public function sayHello() { echo 'Hello Universe!'; } } $o = new TheWorldIsNotEnough(); $o->sayHello(); ?>结果为Hello Universe!详情可查阅php手册:https://www.php.net/manual/zh/language.oop5.traits.php