File upload error in php

Question

How do I really know if I am passing a file to the server, via a file upload option?

i) I use a form as follows:

<form name = "someForm" id = "someForm" method = "post" action = "saveFile.php">                
    <input type = "file" name = "upload1" id = "upload1" />
    <input type = "file" name = "upload2" id = "upload2" />                     
    <input type = "file" name = "upload3" id = "upload3" />
    <input type = "submit" id = "btnSubmit" value = "Submit" />
</form>

ii) In saveFile.php, I use:

say:

echo $_FILES['upload1']["size"];

apart from others, but I get an Undefined index: upload1 error, but not when, I use:

echo $_POST['upload1'];  //returns filename

Can you post some more code? Where are you storing the files on the server? Windows or Linux / Unix? — James
– James, Commented Dec 6, 2011 at 16:20
Windows. Storing on the server. I need to check the size of the file, and any mention using $_FILES reports an error. — user980411
– user980411, Commented Dec 6, 2011 at 16:21
You get "Undefined index: uploadSource1" but the code above it should be looking for the index "upload1" .. Is this the exact same code generating that error? — djsumdog
– djsumdog, Commented Dec 6, 2011 at 16:22

lorenzo-s · Accepted Answer · 2011-12-06 16:20:50Z

9

You need to specify the <form> enctype to "multipart/form-data":

<form enctype = "multipart/form-data" name = "someForm" id = "someForm" method = "post" action = "saveFile.php">                
    <input type = "file" name = "upload1" id = "upload1" />
    <input type = "file" name = "upload2" id = "upload2" />                     
    <input type = "file" name = "upload3" id = "upload3" />
    <input type = "submit" id = "btnSubmit" value = "Submit" />
</form>

answered Dec 6, 2011 at 16:20

lorenzo-s

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Comments

Rolice · Accepted Answer · 2011-12-06 16:22:21Z

4

<form name="someForm" id="someForm" method="post"
    action="saveFile.php" enctype="multipart/form-data">

Enctype is required for upload of files.

You can access them by $_FILES not $_POST, nor $_GET:

echo $_FILES['upload1']['size'];

answered Dec 6, 2011 at 16:22

Rolice

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Sudhir Bastakoti · Accepted Answer · 2011-12-06 16:21:41Z

2

Files are saved in:

print_r($_FILES); // NOT IN POST

answered Dec 6, 2011 at 16:21

Sudhir Bastakoti

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