php uploads and zero filesize - php

Question

I would so appreciate some help here please. I have been struggling without success for a full day to upload images to a shared host running Zeus (rather than apache--yes I know, they are changing!). The host blames the code yet wont tell me why "as they are not programmers" I have tried so many different version of the form script I am out of options. I have of course checked the upload limits on the php ini file configs (which I am not allowed to change by the host) and they are both 128meg. So it looks unlikely that is the cause. The outcome of the scripts is that we get to the final ''successfully loaded the file'' message but the files size loaded is zero (so there is nothing new in the target directory). I am relatively new to php so please do go easy on the jargon. Thank you.
Here are the two files>> First the form...
<form enctype="multipart/form-data" action="anewupload.php" method="POST">
Please choose a file: <input name="uploaded" type="file" /><br />
<input type="submit" value="Upload" />
</form>
and the php file refered to by the form...
<?php
$target = "uploads/";
$target = $target . basename( $_FILES['uploaded']['name']) ;
$ok=1;
//This is our size condition
if ($uploaded_size >350000)
{
echo "Your file is too large.<br>";
$ok=0;
}
//This is our limit file type condition
if ($uploaded_type =="text/php")
{
echo "No PHP files<br>";
$ok=0;
}
//Here we check that $ok was not set to 0 by an error
if ($ok==0)
{
Echo "Sorry your file was not uploaded";
}
//If everything is ok we try to upload it
else
{
if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target))
{
echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded to..";
echo $target;
echo "..The uploaded file size is $uploaded_size";
}
else
{
echo "Sorry, there was a problem uploading your file.";
}
}
?>

Answer 1

First make sure the uploads folder exists and that is has write permissions set to either 755 or 777
Plus, you have two unassigned variables, $uploaded_size and $uploaded_type, so that will fail.
You would need to use something like if ($_FILES["file"]["size"] <350000) etc. probably another reason why it's failing.
Give this a try, see if this works for you, it's what I use:
Modify $allowedExts = array("gif", "jpeg", "jpg", "png"); for permitted file extensions.
It will upload only if size is less than 350000
NOTE: Change <input name="uploaded" type="file" /> to <input name="file" type="file" /> see form under handler code.
<?php
$allowedExts = array("gif", "jpeg", "jpg", "png");
$extension = end(explode(".", $_FILES["file"]["name"]));
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/jpg")
|| ($_FILES["file"]["type"] == "image/png"))
&& ($_FILES["file"]["size"] < 350000)
&& in_array($extension, $allowedExts))
{
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br>";
echo "Type: " . $_FILES["file"]["type"] . "<br>";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";
if (file_exists("uploads/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],
"uploads/" . $_FILES["file"]["name"]);
echo "Stored in: " . "uploads/" . $_FILES["file"]["name"];
}
}
}
else
{
echo "Invalid file";
}
?>
Also change your form to this to reflect the PHP handler:
<form enctype="multipart/form-data" action="anewupload.php" method="POST">
Please choose a file: <input name="file" type="file" /><br />
<input type="submit" value="Upload" />
</form>