php uploading files - php

Question

I have problem with uploading files. Here is my form:
<form enctype="multipart/form-data" action="transact.php" method="POST">
<table>
<tr>
<td>Nadpis:</td>
<td><input type="text" id="title" name="title" value="<?php echo htmlspecialchars($title); ?>" /></td></tr>
<tr>
<td>Text článku:</td>
<td><textarea id="text" name="text" cols="55" rows="20"><?php if(!empty($a_text)) { echo htmlspecialchars($a_text); } ?></textarea></td>
</tr><tr>
<td>Obrázok k článku:</td>
<td><input type="file" name="uploadfile" /></td></tr>
<tr><td> </td>
<td>
<?php
if ($_SESSION['access_level'] < 2) {
echo '<input type="hidden" name="user_id" value="'. $user_id. '"/>';
}
if(empty($article_id)) {
echo '<input type="submit" name="action" value="Odoslat" />';
} else {
echo '<input type="hidden" name="article_id" value="' .$article_id. '"/>';
echo '<input type="submit" name="action" value="Ulozit" />';
}
?>
</td>
</tr>
</table>
</form>
when I run script transact.php I get error: Notice: Undefined index: uploadfile in E:\xampp\htdocs\capitals\transact.php on line 138
and when I type print_r($_FILES) i get just Array()
value of max upload size in php.ini file is set to 128 MB
my transact script:
case 'Odoslat':
session_start();
$text = (isset($_POST['text']))? $_POST['text']: '';
$nadpis = (isset($_POST['title']))? $_POST['title']: '';
$image = (isset($_FILES['uploadfile']))? imagecreatefromjpeg($_FILES['uploadfile']['tmp_name']): '';
print_r($_FILES); // it writes Array()
if(isset($_SESSION['id']) && !empty($nadpis) && !empty($text) && $_FILES['uploadfile']['error'] == UPLOAD_ERR_OK) //here it indicates error
{
$ext = '.jpg';
$query = 'INSERT INTO articles (article_id, user_id, a_text, title, submit_date)
VALUES(NULL, '. $_SESSION['id']. ', "'. mysql_real_escape_string($text, $db). '", "'.
mysql_real_escape_string($nadpis, $db). '", "' . date('Y-m-d H:i:s'). '")';
mysql_query($query, $db) or die(mysql_error($db));
$clanok_id = mysql_insert_id($db);
$query = 'INSERT INTO foto (foto_id, article_id)
VALUES (NULL, '. $clanok_id. ')';
mysql_query($query, $db) or die(mysql_error($db));
if(!empty($image))
{
$last_id = mysql_insert_id($db);
$image_name = $last_id. $ext;
imagejpeg($image, $dir. '/'. $image_name, 100);
}
else
{
$last_id = mysql_insert_id($db);
$image_name = 'caps.jpg';
}
$priecinok = 'images/';
$place = $priecinok. $image_name;
$query = 'UPDATE foto
SET foto_path = "'. $place. '" WHERE foto_id = '. $last_id;
mysql_query($query, $db) or die(mysql_error($db));
$query = 'UPDATE articles
SET foto_id = '. $last_id. ' WHERE article_id = '. $clanok_id;
mysql_query($query, $db) or die(mysql_error($db));
$redirect = 'index.php';
}
else
{
$chyba = 'Nepodarilo sa nahrat clanok!';
$redirect = 'index.php?chyba='. $chyba;
}
break;
Please how can I repare it? I will be very grateful if somebody help me...

Answer 1

There are 4 things you should check in your php.ini file to make sure file uploads will work :
file_uploads : should be set to 1
upload_max_filesize : should be set to a value big enough for what you plan on uploading. You said it's set to 128 MB. Make sure it is written as '128M'.
post_max_size : should be set to a value higher than upload_max_filesize since it includes the files and the other post data
max_file_uploads : less important, but it limits the number of files you can upload at once

Answer 2

One of the most important apasrt from php.ini setting is ,please check whether you have permission to write in that particular folder where you are uploading the image.

Answer 3

Try add this in your form:
<input type="hidden" name="MAX_FILE_SIZE" value="100000" />
this value set maximum file to 100KB.