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[英]it does not run Javascript code before Php, onClick submit button
[英]Run php function in button OnClick (not submit)
我想通过单击按钮在功能DeleteCus上运行以下查询。我尝试了针对那段代码的代码。
运行notify.php后获取http://localhost/AdminLTE-2.1.1/CusRegReport.php?id = 134 url出现错误未定义索引:lin 67中的id
<button type="button" id = "button" class="btn btn-danger" data-dismiss="modal" onclick ="window.location.href = href='PHP/notification.php?hello=true'">
<?php
if (isset($_GET['hello'])) {
DeleteCus();
}
session_start();
$dbc = mysqli_connect('localhost','root','','dashboard') or die(mysqli_connect_error(''));
function notification(){
global $dbc;
$query = "SELECT `customer_id`, `customer_name` FROM `customer` WHERE `confirmation`IS NULL LIMIT 0, 30 ";
$result = mysqli_query($dbc,$query);
while($row=mysqli_fetch_array($result))
{
echo "<a href='CusRegReport.php?id=" . $row['customer_id'] . "'><i class='fa fa-users text-red'> " . $row['customer_name'] . " needs to register</i></a>";
$_SESSION["count"] =mysqli_num_rows($result);
}
}
function RegReport(){
global $dbc;
$id = $_GET['id'];
// $id = $mysqli->real_escape_string ($id);
$sql = "SELECT * FROM `customer` WHERE `customer_id` = '$id'";
$r = mysqli_query($dbc,$sql);
while($line=mysqli_fetch_array($r))
{
$a= "<br/>" . $line['customer_name'] . "<br/>" . $line['ad_line_one'] .$line['ad_line_two'] .$line['ad_line_three'] .$line['web'] .$line['pub_pvt'] .$line['reg_no'] .$line['tax_no'] .$line['description'] .$line['attachments'] .$line['contact_name'] .$line['contact_salutation'] .$line['contact_designation'] .$line['contact_email'] .$line['contact_tp1'] .$line['contact_tp2'] .$line['md_fname'] .$line['md_lname'] .$line['md_email'] .$line['date']. "</a>";
}
}
function DeleteCus(){
global $dbc;
$id = $_GET['id'];
$sql = "DELETE FROM `customer` WHERE `customer`.`customer_id` = '$id'";
$r = mysqli_query($dbc,$sql);
}
?>
请用以下代码替换按钮代码:
<button type="button" id = "button" class="btn btn-danger" data-dismiss="modal" onclick ="window.location.href='PHP/notification.php?hello=true'" />
尝试此代码的按钮
<button type="button" id = "button" class="btn btn-danger" data-dismiss="modal" onclick ="window.location.href ='PHP/notification.php?hello=true'">
尝试
<button type="button" id = "button" class="btn btn-danger" data-dismiss="modal"
onclick="javascript:window.location.href='www.exampe.com/PHP/notification.php?hello=true&id=<?php echo $_GET['id'];?>'; return false;" >
也在你的职能上
function DeleteCus($dbc,$id){
$dbc=$dbc;
if(isset['$_GET['id'])){
$id = $_GET['id'];
$sql = "DELETE FROM `customer` WHERE `customer`.`customer_id` = '$id'";
$r = mysqli_query($dbc,$sql);
}
}
当您调用函数时进行更改
if (isset($_GET['hello'])) {
DeleteCus($dbc,$id);
}
从按钮onclick事件window.location.href ='PHP / notification.php?hello = true中删除多余的href
尝试这个:-
您有$id = $_GET['id'];
在DeleteCus方法中,但是您没有在按钮PHP / notification.php?hello = true中的链接中传递该参数。 因此,应为<button type="button" id = "button" class="btn btn-danger" data-dismiss="modal" onclick ="window.location.href ='PHP/notification.php?hello=true&id=XXX'">
。 这就是为什么它在调用PHP方法时返回未定义的索引ID
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