Background news deletion function

First add an a tag to the delete tag

<a href="newsave.php?action=del&id=<?php echo $row['id']?>">delete</a>

is used to get the get request, and then in newsave .php page for processing:

Add the code as follows:

<?php
elseif($action="del"){
    $id=$_GET['id'];
    $sql="delete from news WHERE id=$id";
    $result=$mysqli->query($sql);
    if($result){
        echo "<script>alert('删除成功!');window.location.href='newlist.php'</script>";
    }else{
        echo "<script>alert('删除失败!');</script>";
    }
}

Effect display: