创建一个新的迁移文件:使用Laravel的命令行工具生成一个新的迁移文件,例如运行php artisan make:migration convert_int_to_string_in_table_name命令。这将在database/migrations目录下创建一个新的迁移文件。 编辑迁移文件:打开新创建的迁移文件,可以在up方法中编写代码来执行转换操作。可以使用Laravel提供的Schema类来...
"sum"));// int(15)var_dump(array_reduce($a,"product",10));// int(1200), because: 10*1*2*3*4*5var_dump(array_reduce($x,"sum","No data to reduce"));// string(17) "No data
* @see https://github.com/laravel/framework/blob/5.6/src/Illuminate/Foundation/Application.php#L162:27 * @param string|null $basePath * @return void */publicfunction__construct($basePath=null){if($basePath){$this->setBasePath($basePath);}$this->registerBaseBindings();$this->registerBase...
'Welcome to LaravelS');// throw new \Exception('an exception');// 此时抛出的异常上层会忽略,并记录到Swoole日志,需要开发者try/catch捕获处理}publicfunctiononMessage(Server $server, Frame $frame)
4 * @return array<int, \Illuminate\Mail\Mailables\Attachment> 5 */ 6public function attachments(): array 7{ 8 return [ 9 Attachment::fromStorage('/path/to/file'), 10 ]; 11}Of course, you may also specify the attachment's name and MIME type:1/** 2 * Get the attachments for the...
This validation rule does not verify that the input is of the "integer" variable type, only that the input is of a type accepted by PHP's FILTER_VALIDATE_INT rule. If you need to validate the input as being a number please use this rule in combination with the numeric validation rule....
unique_bigint(); //雪花算法 16位数字,如果保存数据库建议用varchar而不是bigint (可能会造成接口返回时整数溢出) uuid(); //生成laravel提供的 uuid validate_form() 快速验证用户提交数据 validate_form([ "mobile|手机号" => "required|size:11", "name|姓名" => "required" ]); ...
请注意,看起来到二进制的转换是在数据库端进行的,因此如果不想,实际上不需要传递二进制数。 如果要将数字强制转换为给定长度的二进制字符串,可以使用 $binaryString = str_pad(base_convert(2, 10, 2),32,'0',STR_PAD_LEFT); // '00000000000000000000000000000010' ...
to(int|string $chatId)- Set recipient's chat ID. token(string $token)- Override default bot token. parseMode(enum ParseMode $mode)- Set message parse mode (ornormal()to unset). Default isParseMode::Markdown. keyboard(string $text, int $columns = 2, bool $requestContact = false, boo...
EnumCollectionis an extension of baseLaravel collectionthat expand his functionalities to add the compatibility with: enum object instance enum case name string enum case value (only forBackedEnum) enum case (string) value (only forIntBackedEnum) ...