tp5查询分页、判断中文、验证码

//查询分页传参
db('user')->paginate($listRows = 20, $simple = false, $config = ['query'=>array('get'=>$post)]);

//php 判断中文
$post = "中文";
preg_match("/^[\x{4e00}-\x{9fa5}]+$/u",$post)

// 验证码配置
 'captcha'  => [
   // 验证码字符集合
   'codeSet'   =>  '0123456789',
   // 验证码位数
   'length'    =>  4,
   // 验证成功后是否重置   
   'reset'     =>  true,
],

//html
<input type="text" name="code" placeholder="请输入验证码">
<img src="{:captcha_src()}"  style="cursor:pointer;" width="70%" onclick="this.src='{:captcha_src()}'" alt="captcha" />

//验证码验证
function check_verify($code=''){
   $captcha = new \think\captcha\Captcha();
   if (!$captcha->check($code)) {
     return false;
   }else{
     return true;
   }
 }

//空操作
public function _empty(){
  $this->redirect('login/index');
 }
 
//空控制器
<?php
namespace app\index\controller;
use think\Controller;
class Error extends Controller
{
  public function index(){
    $this->redirect('index/index');
  }
}
?>

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转载自blog.csdn.net/qq_38904347/article/details/86744549