ThinkPHP 自动创建数据、自动验证、自动完成详细例子介绍(十九)
1:自动创建数据
//$name=$_POST['name'];//$password=$_POST['password']; ---这个注册页面传过来的POST值
下面用了自动穿件create方法就可以不用这个,会行动绑定
$user =M('User');
$User->create(); //会将传过来的$_POST数据对应到数据库的字段
$user->add(); //就可以直接写入
2:自动验证(只需要在Model类里面定义$_validate属性)
使用步骤(注册验证User表)
//注意:code username password....都是你表单里面的name值,要对应
//表单里面字段名字定义的
class UserModel extends Model{
protected $_validate=array(
array('code','require','验证码必须填写!'),
array('code','checkCode','验证码错误!',0,'callback',1), //使用回调函数checkCode
array('username','require','用户必须填写!'),
array('username','','用户已经存在',0,'unique',1),
array('username','/^\w{6,}$/','用户名必须6个字母以上',0,'regex',1),
array('repassword','password','确认密码不正确',0,'confirm'),
);
protected functioncheckCode($code){
if(md5($code)!=$_SESSION['code']){
return false;
}else{
return true;
}
}
}
?>
//控制请值对应的注册方法
class RegisterAction extends Action{
public function doReg(){
$user=D('User'); //大D方法是会先去找你自定义的Mode,(使用上面创建的UserModel.class.php类)
//如果有有自定义的用自定义的,否则用原始的 D等同M M!=D
if(!$user->create()){//会自动去验证 返回一个布尔类型,成功则自动创建数据
$this->error($user->getError());//获取具体错误信息
}
$lastId=$user->add();
if($lastId){
$this->redirect('Index/index');
}else{
$this->error('用户注册失败');
}
}
}
?>
3:自动完成(做留言的例子)
步骤:
一:创建Message表自定义的Mode --->Home\Lib\Model\MessageModel.class.php
class MessageModel extends RelationModel{
protected $_auto=array(
array('time','time',1,'function'),
array('uid','getId',1,'callback')
);
protected functiongetId(){
return $_SESSION['id'];
}
}
?>
二:控制器中
class MessageAction extends Action{
public function doLiuyan(){
$message=D('Message');
//$message->time=time();
//$message->uid=$_SESSION['id']; 这2个值将在自定义MessageModel中自动填充完成
$message->add(); //返回值是新增的id号
}
}
?>

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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