Displaying image from php script displays string

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От Alexander Reichstadt
Тема Displaying image from php script displays string
Дата
Msg-id 09C5F20C-78D0-4F42-9A24-7E1A640D64C3@me.com
обсуждение исходный текст
Ответы Re: Displaying image from php script displays string  (John R Pierce <pierce@hogranch.com>)
Re: Displaying image from php script displays string  (Raymond O'Donnell <rod@iol.ie>)
Список pgsql-general
Sorry if this has been asked a thousand time. I read through the web and think to have done everything I should.

I have a db with a bytea field. In it I stored data from a png file. When I stored it I used pg_escape_bytea(<CONTENTS OF FILE>) and it seems it ended up ok in the database.


I made a test setup, check this out:



Here the store script:
<?php
error_reporting(E_ALL);
ini_set('display_errors', '1');

include_once 'classes/dbop.php';


$thePrefName = $_REQUEST['prefkeyname'];
//$theData = $_REQUEST['file'];



if ($_FILES["file"]["error"] > 0)
{
echo "Error: " . $_FILES["file"]["error"] . "<br />";
return;
} else {
echo "Upload: " . $_FILES["file"]["name"] . "<br />";
echo "Type: " . $_FILES["file"]["type"] . "<br />";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
echo "Stored in: " . $_FILES["file"]["tmp_name"];
}

$file=fopen($_FILES["file"]["tmp_name"],"r") or exit("Unable to open file!");
$filedata = '';
while (!feof($file))
  {
  $filedata .= fgetc($file);
  }
fclose($file);
$filedata = pg_escape_bytea($filedata);



$query = 'INSERT INTO qmcustomerdata (prefkey,dataval) VALUES(\'' . $thePrefName . '\',\'' . $filedata . '\')';
Dbop::singleton()->querydb($query);


?>











Here the script customer_displayimage.php pointed to:
<?php

error_reporting(E_ALL);
ini_set('display_errors', '1');

include_once 'classes/dbop.php';

$query = 'SELECT dataval FROM qmcustomerdata WHERE prefkey=\'' . $_REQUEST['prefkey'] . '\'';
$result = Dbop::singleton()->querydb($query);
echo pg_unescape_bytea($result[0]['dataval']);

?>

Here the Dbop and what it's doing:

public function querydb($querystring)
{
// echo '<br>DEBUG::' . $querystring . '<br>';
$dbconnection = pg_connect("host=localhost dbname=xxxxx user=xxxxx password=xxxxx")
or die('could not connect: ' . pg_last_error());
$result = pg_query($querystring);
$ra = array();
if (pg_num_rows($result)){
$ra = pg_fetch_all($result);
}
     pg_free_result($result);
pg_close($dbconnection);

return $ra;
}



What am I doing wrong?

Thanks
Alex



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