ImageInDatabaseExample.php

//untested code, and i dont really use ?>. 

CreateDatabase.php:
<?php 
$db=new PDO('sqlite:imagedb.sqlite3','','',array(PDO::ATTR_ERRMODE=>PDO::ERRMODE_EXCEPTION));
$db->exec('
-- DROP TABLE IF EXISTS image;
CREATE TABLE images( id INTEGER AUTO_INCREMENT PRIMARY KEY,filename VARCHAR(255),rawdata BLOB);
');
//change this with your mysql or whatever
?>
uploadImage.php:
<?php 
$db=new PDO('sqlite:imagedb.sqlite3','','',array(PDO::ATTR_ERRMODE=>PDO::ERRMODE_EXCEPTION));
$filename="test.jpg";
$rawdata=file_get_contents($filename);
$stm=$db->prepare("INSERT INTO `images` (filename,rawdata) VALUES(:filename,:rawdata);");
$stm->bindValue(":filename",$filename);
$stm->bindValue(":rawdata",$rawdata);
$stm->execute();
?>
displayImage.php:
<?php 
$db=new PDO('sqlite:imagedb.sqlite3','','',array(PDO::ATTR_ERRMODE=>PDO::ERRMODE_EXCEPTION));
header("content-type: image/jpg");
$res=$db->query("SELECT `rawdata` FROM `images` LIMIT 1")->fetch(PDO::FETCH_ASSOC);
echo $res['rawdata'];