Image doesn't display using PHP - php

Question

I'm trying to display the contents from database. Following query is working fine, but the problem is image does not show anymore.
<?php
session_start();
// Include config file
require_once "../auth/dbconnection.php";
$output='';
$sql='select `image`,`title`,`sub_title`,`username`,`blog_id`,`body`,`published` from `blog` WHERE user_id=? ';
$stmt=$conn->prepare( $sql );
$stmt->bind_param( 's',$_SESSION['user_id'] );
$res=$stmt->execute();
if( $res ){
$stmt->store_result();
$stmt->bind_result($image,$title,$sub_title, $username, $blog_id,$body,$published);
while( $stmt->fetch() ){
$filepath="../assets/img/blog_images/";
$title= substr($title,0,30);
$body= substr($body,0,500);
$date= date('dS F Y', strtotime($published));
$output .= '
<div class="col-sm-6 col-md-6 col-lg-4">
<div class="blog grid-blog">
<div class="blog-image">
<a href="#">';
$output .= ' <img style="height:190px; width:330px;" class="img-fluid" src="data:image/png;base64, %s" alt="" />'; base64_encode(file_get_contents($filepath.$image) ) ;
$output .= ' </a>
</div>
<div class="blog-content">
<h3 class="blog-title"> '.$title.' </h3>
<p> <code> '.$body.' </code> </p> <br>
<i class="fa fa-long-arrow-right"></i> Read More
<div class="blog-info clearfix">
<div class="post-left">
<ul>
<li><i class="fa fa-calendar"></i> <span>'.$date.'</span></li>
</ul>
</div>
<div class="post-right"><i class="fa fa-heart-o"></i>21 <i class="fa fa-eye"></i>8 <i class="fa fa-comment-o"></i>17</div>
</div>
</div>
</div>
</div>';
}
echo $output;
}else{
echo 'No any post found';
}
?>
Can anyone guide me how can fix the issue, i would like to appreciate if someone guide me regarding this. Thank You.

Answer 1

I assume that you omit sprintf function.
This should work.
sprintf('<img src="data:image/png;base64, %s" alt="" />', base64_encode(file_get_contents($filepath.$image));

Answer 2

You could put the image binary in separate variable to be easy to use
$binary = "data:image/png;base64," . base64_encode(file_get_contents($filepath . $image));
and use it like this
$output .= '<img style="height:190px; width:330px;" class="img-fluid" src="' . $binary . '" alt="" />';