Blogger Information
Blog 14
fans 0
comment 0
visits 12043
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
PHP实现字母数字混合验证码实例
alber1986的博客
Original
768 people have browsed it

一款简单的PHP实现字母数字混合验证码实例,支持自定义验证码、验证码图片、宽度、高度、个数、背景图片等
11111.jpg

验证码调用地址:Application\Home\Controller\CodeController.class.php

Vendor('Vcode.Vcode', '', '.class.php'); 
$config = array("width" => 100, "height" => 36, "count" => 4, "str" => 2); //配置 
$vcode = new \Vcode($config); 
$vcode->getCode(); //获取验证码 
$vcode->getImg(); //输出图片 
exit;

验证码图片

<img src="__APP__/code/" id="code" onclick="changeCode($('#code'))"/>

JS通过后缀加随机数Math.random()来刷新验证码

function changeCode(obj) { 
    obj.attr("src", '__APP__/code/?' + Math.random()); 
 }

检测验证码是否输入正确

<input type="text" id="input_code" class="input"/> 
<input type="button" value="提交" class="btn" οnclick="checkCode()"/>
function checkCode() { 
    $.post("__APP__/Code/check", {code: $("#input_code").val()}, function(data) { 
        if (data == '1') { 
            alert("验证码正确!"); 
        } else { 
            alert("验证码错误!"); 
        } 
    }, "json") 
}

PHP验证传过来的参数code和当前session存储的验证码进行比较,若是正确返回1,错误则-1

public function check() { 
        $code = I('post.code'); 
        if (strtolower($code) == $_SESSION["sucaihuo_code"]) { 
            echo "1"; 
        } else { 
            echo "-1"; 
        } 
}

本文转自:https://www.sucaihuo.com/php/533.html 转载请注明出处!

Statement of this Website
The copyright of this blog article belongs to the blogger. Please specify the address when reprinting! If there is any infringement or violation of the law, please contact admin@php.cn Report processing!
All comments Speak rationally on civilized internet, please comply with News Comment Service Agreement
0 comments
Author's latest blog post