第一个页面shanchu.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <h1>批量删除</h1> <form action="pldel.php" method="post"> <table width="100%" border="1" cellpadding="0" cellspacing="0"> <tr> <td> <input type="checkbox" name="qx" onclick="checkall(this)" /> 代号 </td> <td>名称</td> </tr> <?php $db = new MySQLi("localhost","root","root","dbname"); $sql = "select * from nation"; $result = $db->query($sql); while($arr = $result->fetch_row()) { echo "<tr> <td> <input type='checkbox' value='{$arr[0]}' name='item[]' class='ck' /> {$arr[0]} </td> <td>{$arr[1]}</td> </tr>"; } ?> </table> <input type="submit" value="批量删除" /> </form> <script type="text/javascript"> function checkall(qx) { var ck = document.getElementsByClassName("ck"); if(qx.checked) { for(var i=0;i<ck.length;i++) { ck[i].setAttribute("checked","checked"); } } else { for(var i=0;i<ck.length;i++) { ck[i].removeAttribute("checked"); } } } </script> </body> </html>
1、item的那里加入[]代表数组
2、注意js的写法
第二个页面pldel.php
<?php $arr = $_POST["item"]; $db = new MySQLi("localhost","root","root","dbname"); /*foreach($arr as $v) //不建议使用这种方式，对数据库操作过多 { $sql = "delete from nation where code='{$v}'"; $db->query($sql); }*/ $str = implode("','",$arr);//注意需要替换的内容 $sql = "delete from nation where code in('{$str}')";//注意拼写字符串 if($db->query($sql)) { header("location:shanchu.php"); }