表单的验证---0416

不会js...没法写 先学学吧

实例

 switch ($_GET['check']) {
 	//验证邮箱
 	case 'email': 		
		$email = $_POST['email']; // 设置默认值
		if (empty($email)) {
			exit(json_encode(['status'=>0,'msg'=>'邮箱不能为空']));
		} else if (in_array($email, ['admin@php.cn','zhu@php.cn'])){
			exit(json_encode(['status'=>1,'msg'=>'邮箱已占用']));
		} else {
			echo json_encode(['status'=>2,'msg'=>'邮箱可用']);
		}
 		break;

 	//验证密码
 	case 'password1':
 		$password1 = $_POST['password1'];
		if (empty($password1)) {
			exit(json_encode(['status'=>0,'msg'=>'密码不能为空']));
		}
		break; 	

	//验证确认密码
 	case 'password2':
 		$password1 = $_POST['password1'];
 		$password2 = $_POST['password2'];
		if (empty($password2)) {
			exit(json_encode(['status'=>0,'msg'=>'确认不能为空']));
		} else if ($password1 != $password2){
			exit(json_encode(['status'=>1,'msg'=>'二次密码不相等']));
		}  else {
			exit(json_encode(['status'=>2,'msg'=>'验证通过']));
		}
		break; 	

	//简介验证(仅做非空验证)
	case 'comment':
		$comment = $_POST['comment'];
		if (empty($comment)) {
			exit(json_encode(['status'=>0,'msg'=>'简介不能为空']));
		} else if (mb_strlen(trim($comment)) < 10) {
			exit(json_encode(['status'=>1,'msg'=>'长度小于10个字符']));
		} else {
			exit(json_encode(['status'=>2,'msg'=>'通过']));
		}

 	//提交验证 
 	case 'submit':
 		//因为数据之前已经全部验证,这里直接返回结果即可
 		exit('恭喜,注册成功');