Thinkphp verification code implementation (form, ajax implementation verification)

Thinkphp verification code implementation (form, ajax implementation verification)_php example

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Release： 2016-08-17 13:02:37

Original

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Two verification code verification implementations, one is to implement verification directly on the form form submit button, and the other is to use ajax to pass parameters to implement verification:

1. To implement verification directly on the form submit button, write the following code in the controller VerifyController.class.php:

namespace Home\Controller;
use Think\Controller;
class VerifyController extends Controller {
public function index() {
$this->display();
}
public function checkLogin() {
$verify=new \Think\Verify();
$code=I('post.verify');//表单验证码
if($verify->check($code)){
$this->success('验证码正确');
}else{
$this->error('验证码错误');
}
}
public function verify()
{
// 实例化Verify对象
$verify = new \Think\Verify();
// 配置验证码参数
$verify->fontSize = 14; // 验证码字体大小
$verify->length = 4; // 验证码位数
$verify->imageH = 34; // 验证码高度
$verify->useImgBg = true; // 开启验证码背景
$verify->useNoise = false; // 关闭验证码干扰杂点
$verify->entry();
}
}

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The code in the view Verify/index.html is as follows:

<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<form action="{:U('verify/checkLogin')}" method="post">
<div class="form-group has-feedback">
<input type="text" name="verify" id="verify" placeholder="验证码" style="width:100px;" />
<span style="right:120px;"></span>
<img class="verify" src="{:U(verify)}" alt="验证码" onClick="this.src=this.src+'&#63;'+Math.random()" />
</div>
<div class="col-xs-4">
<button type="submit" >验证</button>
</div>
</form>
</body>
</html>

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2. Use ajax to pass parameters for verification. The code in the controller VerifyController.class.php is as follows:

namespace Home\Controller;
use Think\Controller;
class VerifyController extends Controller {
public function index() {
$this->display();
}
public function checkLogin() {
$verify=new \Think\Verify();
$code=$_POST['code'];//ajax验证码获取
if($verify->check($code)){
$this->ajaxReturn(1);
}else{
$this->ajaxReturn(0);
}
}
public function verify()
{
// 实例化Verify对象
$verify = new \Think\Verify();
// 配置验证码参数
$verify->fontSize = 14; // 验证码字体大小
$verify->length = 4; // 验证码位数
$verify->imageH = 34; // 验证码高度
$verify->useImgBg = true; // 开启验证码背景
$verify->useNoise = false; // 关闭验证码干扰杂点
$verify->entry();
}
}

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The code in the view Verify/index.html is as follows:

<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script src="__JS__/jquery-2.1.0.min.js" ></script>
</head>
<body>
<form action="{:U('verify/checkLogin')}" method="post">
<div class="form-group has-feedback">
<input type="text" name="verify" id="verify" placeholder="验证码" style="width:100px;" />
<span style="right:120px;"></span>
<img class="verify" src="{:U(verify)}" alt="验证码" onClick="this.src=this.src+'&#63;'+Math.random()" />
</div>
<div class="col-xs-4">
<button type="button" id="ver">验证</button>
</div>
</form>
<script>
$(document).ready(function(){
/*ajax验证码*/
$("#ver").click(function(){
var code=$("#verify").val();//获取输入验证码
var url=$('form').attr('action');//获取表单action的值
$.ajax({
type:"post",
url:url,
data:{"code":code},
error:function(request){
alert("ajax错误");
},
success:function(data){
if(data){
alert("正确")
}else{
alert('错误')
}
}
});
});
});
</script>
</body>
</html>

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In the second method, don’t forget to download the jquery.min.js file download address: http://www.jq22.com/jquery-info122

Configure the address in the configuration file Common/conf/config.php:

return array( 
/*地址替换*/
'TMPL_PARSE_STRING'=>array( 
'__JS__'=>__ROOT__.'/Public/JS',
),
);

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The above is the implementation of thinkphp verification code (verification using form and ajax) introduced by the editor. I hope it will be helpful to you. If you have any questions, please leave me a message and the editor will reply to you in time. I would also like to thank everyone for your support of the Script House website!