Uploading Files

[intermediate]

Could someone show me how exactly to make it so people can upload files to the site.... example: on a forum upload an image to post on the forum post, something like that!

also, how do you make the browse button to make uploading files for the user easier and faster?!

and finally once the file is uploaded how do you call the file later as a variable to show the file or so people can dl the file.

plz help and thanx in advance for any help i receive!

[mzanimephp]

Yes, I would like to know this as well, and I'm clueless when it comes to PHP, so please keep it simple!

Thanks!!!

[ereptur]

First of all you need two pages. The first page being the one with the form, the second being the one that processes the form.

Page1.html
<form method="post" action="page2.php">
<input type="file" name="userfile" />
<input type="submit" value="upload" />
</form>

Page2.php
$userfile = $_FILES["userfile"];   // this is the global that hold the uploaded files information
copy ($userfile, "./images/$userfile");       // since the uploaded file is made temporary, you have to copy it to a permanent location
echo "$userfile was successfully uploaded<br />
it's size was $userfile["size"]";

This is pretty much and over simplified example, but I know how hard it can be to learn when you're starting out. I hope this helps.

[intermediate]

that helps a lot thanks! but how do you make the browse button so the user can pick the file directly off their comp?!

[ereptur]

It's made automatically with the <input type="file">.

[suntra]

A BIG MISTAKE !!!

Never forget to add this in the FORM tag...

enctype="multipart/form-data"

So

<FORM METHOD="POST" ACTION="page2.php" ENCTYPE="multipart/form-data">

[planetsim]

Exactly without that. The file will not be uploaded as it will appear invalid.

[mzanimephp]

No, something is still not right... try it yourself, I'm getting a error.

http://www.mzanime.com/upload.html

Here si the PHP code I'm using:

<?php

$userfile = $_FILES["userfile"];   // this is the global that hold the uploaded files information
copy ($userfile, "./images/$userfile");       // since the uploaded file is made temporary, you have to copy it to a permanent location
echo "$userfile was successfully uploaded<br>;
echo "its size was $userfile["size"]";

?>

Also, what about permissions? If the user is allowed to upload files like this to my web space, doesn't he need to have write access to a specific directory?

Also I was thinking... I remember someone told me "Heh, assholes like me would upload 500mb files and crash the server" - is there some way I could prevent the user from uploading anything bigger than lets say, 5mb?

Thanks.

[rIkLuNd]

try this code:

<form action="upload.php" method="post" enctype="multipart/form-data">
<input type="file" name="userfile"><p>
<input type="submit" value="Upload File">
</form>

<?php

// check the filesize
if($_FILES['userfile']['size'] > 50000) // ~50kB
{
echo "The file is too big!";
exit;
}

if(is_uploaded_file($_FILES['userfile']['tmp_name']))
{
move_uploaded_file($_FILES['userfile']['tmp_name'],'uploads/'.$_FILES['userfile']['name']);
echo "upload completed!";
}
else
{
echo "<b>ERROR</b>";
}

?>

[intermediate]

i got this error when trying to upload a file:

Warning: Unable to create './images/1042246294.gif': Permission denied in /home/**/public_html//***.php on line 182

how do i fix this!

[mzanimephp]

Hmmm, now it says:

Warning: Unable to create 'uploads/arms3.jpg': Permission denied in /home/mzanime/public_html/upload.php on line 12

Warning: Unable to move '/tmp/phpeNnEMf' to 'uploads/arms3.jpg' in /home/mzanime/public_html/upload.php on line 12
upload completed!

Is there something I'm doing wrong?? Usually it is always one little vital peice at the end which prevents it from working properly.

_Mike.

[mzanimephp]

Originally posted by intermediate
i got this error when trying to upload a file:

Warning: Unable to create './images/1042246294.gif': Permission denied in /home/**/public_html//***.php on line 182

how do i fix this!

Yeah, that sounds a lot like the error that I got. Mine says that the problem is on line 12, but the only thing on line 12 is:

 move_uploaded_file($_FILES['userfile']['tmp_name'],'/home/mzanime/public_html/uploads/'.$_FILES['userfile']['name']);

Also, I CHMOD the /uploads/ directory so users will have write access but this didnt help either.

_Mike.

[rIkLuNd]

maybe you have to chmod the dir to '777'...

[intermediate]

umm how do i do this?

[mzanimephp]

It works, it works!!!!!!! 😃 Thanks!

Originally posted by intermediate
umm how do i do this?

The easiest way that I know of is using WSFTP. open WSFTP then right click on folder or file on the remote side, and in the drop down list, select CHMOD.

give the owner (you), the users, and group members read,write, and execute access.

[leetcrew]

it works with me... thanks for the code 😃

[scoppc]

Well, chmod to 777 will always work for upload.
Can anyone point out any problems what could probably arise by chmodding a folder to 777??? I am totally not a unix nor Linux user, so this matter is actually unclear to me.

Any possible security violations here? for instance, it will allow someone to upload anything to the folder or write?