<?php
include('dbconnect.php');

$home_id = $_POST['hashid'];
$hashtag=$_POST['hashtag'];
$squery = "select * from hashtag WHERE id='$home_id'";
        $result = mysqli_query($conn, $squery);
        while( $row = mysqli_fetch_array($result))
        {

           $image_hash=$row['image'];

$image_name = basename($_FILES["image"]["name"]);
$target_file =  "./img/".basename($_FILES["image"]["name"]);
  move_uploaded_file($_FILES["image"]["tmp_name"], $target_file);

  if ($conn->connect_error)
   {
    die("connecion failed:" .$conn->connect_error);
  }
if($image_name == null) {
    $img1 = $image_hash;
} else {
   
    $img1 = $image_name;
} 

mysqli_query($conn,"UPDATE `hashtag` SET `hashtag`='$hashtag', `image`='$img1' where id='$home_id' ");

if(mysqli_affected_rows($conn) > 0){
    echo "<script> alert('update success'); window.location.href='hashtag.php'; </script>";
  } else {
     echo "<script> alert('update not success'); window.location.href='hashtag.php'; </script>";
    echo mysqli_error ($conn);
  } 



}
?>