Retrieve image from MySQL using PDO problems - php

Question

I've migrated a access database with images on its fields to mysql.
When I try to visualize them with several php codes I get a broken image icon or I download php code (PHP: Retrieve image from MySQL using PDO) that I tried to use in a new try:
<?php
$con = mysqli_connect('localhost', 'root', '', 'access');
$query = mysqli_query($con,"SELECT EscudoClub FROM tclubs WHERE CodClub = 'C13'");
$imageData = mysqli_fetch_array($query, MYSQLI_ASSOC);
$image = $imageData['EscudoClub'];
header("Content-type: image/jpeg");
echo $image;
mysqli_free_result($query);
mysqli_close($con);
?>
With above code I get a broken image icon and using pdo I only get dowwnload php code I guess because some syntax problems:
//$dbName = $_SERVER["DOCUMENT_ROOT"]."\\..\db\\teknofo.mdb";
//$con = new PDO("odbc:DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=access; Uid=; Pwd=;");
$con = new PDO('mysql:host=localhost;dbname=access;charset=utf8', 'root', '');
$sql = "SELECT EscudoClub FROM tclubs WHERE CodClub = 'C13'";
$st = $con->prepare($sql);
$st->execute(array(17));
$st->bindColumn('photo', $photo, PDO::PARAM_LOB);
$st->fetch(PDO::FETCH_BOUND);
odbc_longreadlen($st, 131072);
odbc_binmode($st,ODBC_BINMODE_CONVERT);
ob_clean();
header('Content-Type: image/*');
if ($rd = $st->fetch(PDO::FETCH_BOUND))
{
echo $rd['photo'];
ob_end_flush();
$con = null;
}
?>
Please, could you help me with this?
Kind regards

Answer 1

When executing your statement, you provide an explicit parameter value (of 17)—but the statement does not contain any parameter placeholders! You're then attempting to bind a column named 'photo', which doesn't exist in the resultset. The odbc_* calls shouldn't be there either.
$con = new PDO('mysql:host=localhost;dbname=access;charset=utf8', 'root', '');
// DON'T USE ROOT USER !!!
$st = $con->prepare('SELECT EscudoClub FROM tclubs WHERE CodClub = ?');
$st->execute(array('C13'));
if ($rd = $st->fetch())
{
header('Content-Type: image/*'); // you should give an exact MIME type
echo $rd['EscudoClub'];
}

Answer 2

You should first map the $sql call from:
$sql = "SELECT EscudoClub FROM tclubs WHERE CodClub = 'C13'";
To :
"SELECT EscudoClub FROM tclubs WHERE CodClub = ':cod_club'";
$st = $con->prepare($sql);
$st->execute(array('cod_club' => 123456));
I don't know if this could solve your issue, but when you get straightly the PHP source code from a call, it is generally due to your server configuration (apache, nginx, etc.).

Answer 3

I would like to add that pictures on access database are stored as microsoft word pictures. I don't know if I should export them to any image format (jpeg, png..) before trying to display them. The problem is that I migrated all data from access database and there is a table with 1,3GB of photos.
Kind regards.