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ThinkPHP framework implements form validation function code

小云云Original: 2018-02-06 10:01:321457browse

Automatic verification is a data verification method provided by the ThinkPHP model layer, which can automatically perform data verification when using create to create a data object. Divided into static verification and dynamic verification. This article mainly introduces the ThinkPHP framework form verification operation method to everyone. Friends who need it can refer to it. I hope it can help everyone.

1. Static verification

(1) Create a new Index controller under the Home/Controller/ path. IndexController

IndexController.class.php page

Note: Because the model class must be defined in the static definition method, the model can only be instantiated with the D function

The create method is to automatically verify the POST data submitted by the form

<?php
namespace Home\Controller;
use Think\Controller;
class IndexController extends Controller {
    public function yanzheng(){
    $u= D("users");//造一个子类对象
    if(empty($_POST)){
      $this->show();
    }else{
      if($u->create()){//验证
        echo"验证通过";
      }else{
        echo $u->getError();//获取错误信息
      }
    }
  }
}

(2) Create the yanzheng.html page in the view/Index folder

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script src="__ROOT__/Public/js/jquery-3.2.0.min.js"></script>
</head>
<body>
<h1>验证界面</h1>
<form action="__ACTION__" method="post">
<p>用户名：<input type="text" name="uid" /></p>
<p>密码：<input type="password" name="pwd1"/></p>
<p>确认密码：<input type="password" name="pwd2"/></p>
<p>年龄：<input type="text" name="age"/></p>
<p>邮箱：<input type="text" name="Email"/></p>
<p><input type="submit" value="验证" /></p>
</form>
</body>
</html>

Rendering:

(3) Write static verification verification in the Model layer: (The path is as shown in the figure)

UsersModel.class.php

<?php
namespace Home\Model;
use Think\Model;
class UsersModel extends Model{
    //添加验证条件
    protected $_validate = array(  
      array("uid","require","用户名不能为空!"), //默认情况下用正则进行验证
      array("pwd1","require","密码不能为空!"),
      array("pwd2","require","密码不能为空!"),   
      array("pwd2","pwd1","两次输入的密码不一致",0,"confirm"), // 验证确认密码是否和密码一致
      array("age","18,50","年龄不在范围内",0,"between"),
      array("Email","email","邮箱格式不正确"),
    );
}

Verify the renderings in turn:

When all are empty, click Verify

will jump

Enter the user name. If you do not enter anything else, it will jump to

. If the password entered twice is inconsistent, it will prompt; if the age is not within the range, it will prompt; if the email format is incorrect, it will prompt;

After entering the correct format content

2. Dynamic verification

(1) IndexController.class.php page

<?php
namespace Home\Controller;
use Think\Controller;
class IndexController extends Controller {
    public function yz(){
    $u= M("users");//造一个父类对象
    if(empty($_POST)){
      $this->show();
    }else{
      $rules = array(
        array("uid","require","用户名不能为空!"),
      );
      if($u->validate($rules)->create()){//验证
        $this->ajaxReturn("ok","eval");
      }else{
        $this->ajaxReturn("no","eval");
      }
    }
  } 
｝

(2) yz.html page:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script src="__ROOT__/Public/js/jquery-3.2.0.min.js"></script>
</head>
<body>
<h1>验证界面</h1>
<form action="__ACTION__" method="post">
<p><input type="text" name="uid" id="uid" /><span id="ts"></span></p>
<p><input type="submit" value="验证" /></p>
</form>
</body>
<script type="text/javascript">
$("#uid").blur(function(){
    var uid = $(this).val();
    $.ajax({
        url:"__ACTION__",
        data:{uid:uid},
        type:"POST",
        dataType:"TEXT",
        success: function(data){
            if(data.trim()=="ok")
            {
              $("#ts").html("验证通过");
            }
            else
            {
              $("#ts").html("用户名不能为空");
            }
          }
      });
  })
</script>
</html>

Take a look at the effect:

## When the text box loses focus:

When the text box has content, then lose focus:

Related recommendations:

Recommended resources for in-depth ThinkPHP framework video tutorials from Geek Academy

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