我想在点击时删除数据库中的记录,这是我尝试过的:
delete.js
function oki(){
mysql_query("DELETE FROM topics WHERE id='58'");
}
按钮:
<script type="text/javascript" src="delete.js"></script>
<?php
include_once("connect.php");
?>
<button onClick="oki();">Del</button>
请帮帮我,我无法知道如何做到这一点。 如果您需要更多信息,请告诉我。
答案 0 :(得分:1)
如果您只是想从链接中删除,不关心页面重新加载等...那么它已在这里得到解答:
php delete mysql row from link
但是听起来你想点击一个按钮,它会删除你没有导航你离开你所在页面的行,在这种情况下你会想要使用某种形式的ajax。
您没有提供足够的代码,因此无法帮助您在执行操作后更新显示,但基础可能看起来像这样(未经测试)
delete.php
<?php
include_once("connect.php");
if ($_GET['mode'] == 'delete') {
$row_id = (int)$_POST['row_id'];
mysql_query("DELETE FROM topics WHERE id=" . $row_id);
}
?>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1 /jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$('.delete-row').click(function() {
$.post('delete.php?mode=delete', { row_id: $(this).data('row_id')}).done(function(data) {
// Reload your table/data display
});
});
});
</script>
<button class="delete-row" data-row_id="58">Delete</button>
I would HEAVILY advise against using mysql_ functions,请改用PDO或MySQLi。回到基础并了解PHP和javascript如何相互交互,因为你知道的东西不正确。
编辑(额外强迫症):
您还应该考虑其他事情,任何人都可以删除任何行吗?如果只有某些人应该拥有权限,则应该在删除之前验证当前登录的用户是否应该删除该特定行。
答案 1 :(得分:0)
<input type="button" onclick="deleteme(<?php echo $row['id']; ?>)"> // fetch from database
<script language="javascript">
function deleteme(delid)
{
window.location.href='delete.php?del_id='+delid+'';
return true;
}
</script>
delete.php
$select="delete from tbl_category where id='".$_GET['del_id']."'";
$query=mysql_query($select) or die($select);
答案 2 :(得分:0)
抱歉我的英语不好 首先使用php扩展创建文件并使用你创建php的函数而不是javascript,所以编写这个代码。
<a href="delete.php?id=58">Delete</a>
创建delete.php文件并对此进行编码
if(isset($_GET['id'])) {
@mysql_query("DELETE FROM topics WHERE id = '".$_GET['id']."'");
header("location: index.php");
exit();
}
答案 3 :(得分:0)
PHP
$ids = array_map('intval', json_decode($_GET['id']));
mysql_query("DELETE FROM topics WHERE id in (" . implode(',', $ids) . ")");
和javascript(使用jQuery)
function oki() {
var checked = $('.row:checked');
var ids = checked.map(function() { return $(this).val(); });
$.get('delete.php', {id: JSON.stringify(ids)}, function(response) {
checked.remove();
});
}
你的HTML将是
Row with id 10: <input type="checkbox" class="row" value="10"/>
Row with id 20: <input type="checkbox" class="row" value="20"/>
Row with id 30: <input type="checkbox" class="row" value="30"/>
Row with id 40: <input type="checkbox" class="row" value="40"/>
<button onClick="oki();">Del</button>
答案 4 :(得分:0)
这是我在不离开页面或重新加载页面的情况下删除数据所做的:
在some.php中:
<?php
include"../connect.php";
// for simple security need change to improve
Session_start();
$n=rand(1,99);
$uid=md5($n);
$_SESSION['uid']=$uid
// end
?>
<script>
function getXMLHTTP() { //fuction to return the xml http object
var xmlhttp=false;
try{
xmlhttp=new XMLHttpRequest();
}
catch(e) {
try{
xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e){
try{
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e1){
xmlhttp=false;
}
}
}
return xmlhttp;
}
function getData(strURL) {
var req = getXMLHTTP();
if (req) {
req.onreadystatechange = function() {
if (req.readyState == 4) {
// only if "OK"
if (req.status == 200) {
document.getElementById('divResult').innerHTML=req.responseText;
} else {
alert("There was a problem while using XMLHTTP:\n" + req.statusText);
}
}
}
req.open("GET", strURL, true);
req.send(null);
}
}
</script>
<input name="button" type="button" value="Clear Data" onClick="getData('deldata.php?id=58&uid=<?=$uid?>')">
<div id="divResult"></div>
在deldata.php中:
<?php
Session_start();
include"../connect.php";
$idd=$_REQUEST['id'];
$uid=$_REQUEST['uid'];
$sc=$_SESSION['uid'];
//check for simple security
if($sc==$uid){
mysqli_query("DELETE FROM topics WHERE id='$idd'");
echo "Data deleted":
}
?>
您也可以将此用于多个“删除”按钮的动态行。
答案 5 :(得分:0)
这是我的解决方案:
<?php
$query="select * from product limit ".$offset. " , " .$perpage;
$result=mysql_query($query);
?>
<center>
<table border="2">
<tr>
<th>Category Name</th>
<th>Product Name</th>
<th>Product Description</th>
<th>Product Image</th>
<th>Product Actual image</th>
<th>Product Discount</th>
<th>Product Selling Price</th>
<th>Update/Delete</th>
</tr>
<?php while ($row=mysql_fetch_array($result)){?>
<tr>
<td><?php echo $row['pro_catagory'];?></td>
<td><?php echo $row['pro_name'];?></td>
<td><?php echo $row['pro_des'];?></td>
<td><img src="Img/<?php echo $row['pro_image'];?>" width="100" height="100" ></td>
<td><?php echo $row['pro_actual'];?></td>
<td><?php echo $row['pro_dis'];?></td>
<td><?php echo $row['pro_price'];?></td>
<td<a href="delete.php?pid=<?php echo $row['pro_id'];?>">Delete</a></td>
&GT;
在delete.php中
<?php
$con=mysql_connect('localhost','root','');
if(!$con)
{
die('could not connect' .mysql_error());
}
mysql_select_db("jaswinder", $con);
$Query="delete from product where pro_id=".$_REQUEST['pid'];
$result=mysql_query($Query);
?>