一、参考源码
<?php $localhost="localhost"; $root="root"; $password="123456"; $datebest="db_ku"; $conn=mysqli_connect($localhost,$root,$password,$datebest) or die("数据库服务器连接错误".mysqli_error($conn)); mysqli_select_db($conn,$datebest) or die("数据库访问错误".mysqli_error($conn)); mysqli_query($conn,"set character set utf8"); mysqli_query($conn,"set names utf8"); function edit_id() { Global $conn; $table_name=$_POST['name']; $sql="ALTER TABLE `".$table_name."` DROP id"; $sql1="ALTER TABLE `".$table_name."` ADD id MEDIUMINT(8) NOT NULL FIRST"; $sql2="ALTER TABLE `".$table_name."` MODIFY COLUMN id MEDIUMINT(8) NOT NULL AUTO_INCREMENT,ADD PRIMARY KEY(id)"; mysqli_query($conn,$sql); mysqli_query($conn,$sql1); mysqli_query($conn,$sql2); echo mysqli_error($conn); echo "<script>alert('重置ID成功！');history.back();</script>"; exit; } if ($_SERVER['REQUEST_METHOD'] === 'POST') { edit_id(); } ?> <!DOCTYPE html> <html> <head> <title>重置ID</title> </head> <style type="text/css"> form{ margin:50px 30%; width: 400px; } div{ display:inline; } label{ border: 1px solid; background-color: #4CAF50; } input{ width: 200px; padding: 7px 0px; } button { background-color: #4CAF50; } </style> <body> <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data" autocomplete="off"> <div> <label for="name">表名:</label> <input type="text" id="name" name="name" placeholder="输入数据库需要重置ID数据表名"> </div> <div><button>提交</button></div> </form> </body> </html>
二、展示
