[RESOLVED] How to check if a file was uploaded?

[david8787]

I have a form that allows users to upload a file. I don't expect them to upload a file all the time, so how do I check if a file was uploaded?

I thought this would be fine but it isn't.

if (isset($_FILES['attachment']))
{
  process file...
}

[NogDog]

I might do:

if(!empty($_FILES['attachment']['size']))
{
   // got a file
}

[david8787]

Thanks for the help. From reading the PHP error message manual it says error would be set to 4 if no file was uploaded so I used that instead.

[david8787]

I don't know why I thought that checking if the error code was equal to 4 would help me because it doesn't. I tried the mentioned solution but it still doesn't seem to be working. Am I missing something?

if(($_FILES['attachment']['error'] == 0) && !empty($_FILES['attachment']['size']))
{
  got file
}
else
{
  no file
}

This is my form code

<form id="addAttachment" name="addAttachment" method="post" action="add_attachment.php">
  <input type="file" id="attachment" name="attachment" size="38" />
  <input type="submit" value="Add" />
</form>

I can't upload the file because it always executes the else part of he script. Any suggestions?

[david8787]

Ah never mind I forgot the enctype in the form.