时间:2021-07-01 10:21:17 帮助过:5人阅读
核心源码:
1.配置文件:config.php,代码如下:
<?php //数据库配置信息(用户名,密码,数据库名,表前缀等) $cfg_dbhost = "localhost"; $cfg_dbuser = "root"; $cfg_dbpwd = "root"; $cfg_dbname = "ajaxdemo1"; $cfg_dbprefix = ""; $link = mysql_connect($cfg_dbhost,$cfg_dbuser,$cfg_dbpwd); mysql_select_db($cfg_dbname); mysql_query("set names utf8"); ?>
2.处理请求:deal.php,代码如下:
<?php header("Content-type:text/html;charset=utf-8"); include "config.php"; //post接收数据,只是演示效果,这里就省去验证了 $name = $_POST['name']; $content = $_POST['content']; $sql = "insert into test (name,content) values ('{$name}','{$content}');"; $res = mysql_query($sql,$link); if($res){ echo '{"name": "'.$name.'","content": "'.$content.'","status": "1"}'; } ?>
3.首页代码:index.php,代码如下:
无刷新 <?php include "config.php"; $sql = "select * from test;"; $res = mysql_query($sql,$link); while($row=mysql_fetch_array($res)){ echo "".$row['name']." 发表了:".$row['content']."
"; } ?>
数据库文件,代码如下:
DROP TABLE IF EXISTS `test`; CREATE TABLE `test` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(64) NOT NULL, `content` text NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8;
以上就是为大家分享的php+ajax实现无刷新的新闻留言系统,希望对大家的学习有所帮助。