Query a base64 image from sql and decode it - php

Question

I am trying to pull pictures from a table row that are base64 encoded. I need to decode them and display on a webpage. I would really like to put them into a slideshow but that is another topic!
Here is the query so far
<?php
require("config.inc.php");
//initial query
// table name is pictures and table row is picture
$query = "Select * FROM pictures";
//execute query
try {
$stmt = $db->prepare($query);
$result = $stmt->execute($query_params);
}
catch (PDOException $ex) {
$response["success"] = 0;
$response["message"] = "Database Error!";
die(json_encode($response));
}
// Finally, we can retrieve all of the found rows into an array using fetchAll
$rows = $stmt->fetchAll();
if ($rows) {
$response["success"] = 1;
$response["message"] = "Photos Available!";
$response["posts"] = array();
// only 3 rows in table - post_id, username, picture
foreach ($rows as $row) {
$post = array();
$post["post_id"] = $row["post_id"];
$post["username"] = $row["username"];
$post["picture"] = $row["picture"];
//update our repsonse JSON data
array_push($response["posts"], $post);
}
// echoing JSON response
echo json_encode($response);
} else {
$response["success"] = 0;
$response["message"] = "No Photos Available!";
die(json_encode($response));
}
?>
The problem is decoding it. Here is what it shows so far
http://www.photosfromfriends.com/webservice/gallery.php
This is only for one picture (post) The table might have 50 pictures in it and each will need to be displayed (hence the desire for a slideshow). This is way over my head and I would really appreciate any help.

Answer 1

try this code, please justify according to your code:
$data = json_decode($json, true);
//print_r($data);
$picture = base64_decode($data['posts'][0]['picture']);
header("Content-type: image/png");
echo $picture;
You must decode only decoded data for the image, and don't forget to use header