Uploading multiple files with PHP

[tagore]

This is my HTML markup:\[code\]<p><input type="file" name="file[]" id="file" /></p><p><input type="file" name="file[]" id="file" /></p><p><input type="file" name="file[]" id="file" /></p><p><input type="file" name="file[]" id="file" /></p><p><input type="file" name="file[]" id="file" /></p>\[/code\]When I submit the form, the form is submitting empty files. This is a \[code\]print_r\[/code\] of the array it sends:\[code\]Array( [name] => Array ( [0] => thumb.jpg [1] => [2] => [3] => [4] => ) [type] => Array ( [0] => image/jpeg [1] => [2] => [3] => [4] => ) [tmp_name] => Array ( [0] => C:\xampp\tmp\phpEE16.tmp [1] => [2] => [3] => [4] => ) [error] => Array ( [0] => 0 [1] => 4 [2] => 4 [3] => 4 [4] => 4 ) [size] => Array ( [0] => 5130 [1] => 0 [2] => 0 [3] => 0 [4] => 0 ))\[/code\]Is there a way to stop all these blank files being sent? As I have a feeling it's going to give me a headache later down the script. I thought I could check the error code for each file (4 if there is no file) and then unset it from the array, what do you think?