Image Click Counter, data base Row update, and Order by hits - php

Question

Im trying to make an image click counter, so that when some one click on an image it updates hit column by 1.
Im having trouble with the syntax, as far as getting the row number that needs to be updated.
Later i want to use this hit column to sort the order that the images are displayed on the site.
If you feel like throwing me a bone and telling how to do that as well it would be much appreciated :)
connect.php
<?php
$servername = "*******";
$username = "********";
$password = "********";
$dbname = "********";
$conn = new mysqli($servername, $username, $password,$dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
//echo "Connected successfully";
?>
art.php
<?php
require 'connect.php';
$sql = "SELECT * FROM art";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo
"<div class='art'>
<a href='img/".$row["name"].".jpg '
//part that I need help with
onclick='
<?php
include 'update_hits.php';
update_hit('$row');
?>'
target='_blank'>
<img src='img/".$row["name"]."_tnail.jpg' alt='".$row["name"]."' title='".$row["name"]." • ".$row["year"]." • ".$row["type"]."'/>
</a>
<p>
".$row["name"]." • ".$row["year"]." • ".$row["type"]."
</p>
</div>"
;
}
} else {
echo "0 results";
}
$conn->close();
?>
update_hits.php
<?php
require 'connect.php';
function update_hit($row){
$query = "SELECT 'hits' FROM 'art'";
if(#$query_run = mysql_query($query);){
$count = mysql_result($query_run, '$row' , 'hits');
$count_inc = $count + 1;
$query_update = "UPDATE 'art' SET 'hits' = '$count_inc'";
#$query_update_run =mysql_query($query_update);
}
}
?>

Answer 1

Finally got it to work
<?php
require 'connect.php';
$image = $_GET['image'];
//need to check whether file exists also
if(!empty($image)){
echo "<img src='".$image.".jpg'>"; // prefix full path if needed
$imagename = explode("/", $image);
$sql = "UPDATE `art` SET `hits`=`hits` +1 WHERE `name` = '".$imagename[1]."'";
if ($conn->query($sql) === TRUE) {
echo "Record updated successfully";
} else {
echo "Error updating record: " . $conn->error;
}
$conn->close();
}
?>

Answer 2

This is only the logic, your code is not perfect it needs many validation and additional checks. I have not tested this code check for syntax errors. Its only for you to get the logic on how to do this.
modified art.php
<?php
require 'connect.php';
$sql = "SELECT * FROM art";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo
"<div class='art'>
<a href='displayImg.php?image=".$row["name"]."' target='_blank'>
<img src='img/".$row["name"]."_tnail.jpg' alt='".$row["name"]."' title='".$row["name"]." • ".$row["year"]." • ".$row["type"]."'/>
</a>
<p>
".$row["name"]." • ".$row["year"]." • ".$row["type"]."
</p>
</div>"
;
}
} else {
echo "0 results";
}
$conn->close();
?>
new displayImg.php
<?php
require 'connect.php';
$image = $_GET['image'];
//need to check whether file exists also
if(!empty($image)){
echo 'img/'.$image.'jpg'; // prefix full path if needed
$sql = "UPDATE 'art' SET hits=hits+1 where name = ".$image;
$result = $conn->query($sql);
}
?>