Checking if files were even uploaded

PHP
1

I have a form which allows up to 6 file uploads…



      <table style="width:90%; margin:0 auto" class="form">
      <tr>
<td><label for='file1'>Image 1:</label></td><td><input type='file' name='file[]'></a></td>
<td><label for='file2'>Image 2:</label></td><td><input type='file' name='file[]'></a></td>
</tr><tr>
<td><label for='file3'>Image 3:</label></td><td><input type='file' name='file[]'></a></td>
<td><label for='file4'>Image 4:</label></td><td><input type='file' name='file[]'></a></td>
</tr><tr>
<td><label for='file5'>Image 5:</label></td><td><input type='file' name='file[]'></a></td>
<td><label for='file6'>Image 6:</label></td><td><input type='file' name='file[]'></a></td>
      </table>

How do I check even if a file has baan selected, heres the code which runs on the form if a file has been selected to uipload


foreach ($_FILES["file"]["name"] as $index => $file_name) {

...
...
}

How do I run that code only if a file has been selected?
I’m thinking I have to run something like this…


if ($_FILES['file']['error'] != UPLOAD_ERR_NO_FILE) {
...
...
}
2

Dug this code up from an old thread:


function get_files($_FILES) {
    $files=$_FILES['image'];
    
    $file_count=count($files);
    $count=0;
    
    while ( $count <> $file_count-1 ) {
        $sorted_files[$count]['name']=$files['name'][$count];
        $sorted_files[$count]['type']=$files['type'][$count];
        $sorted_files[$count]['tmp_name']=$files['tmp_name'][$count];
        $sorted_files[$count]['error']=$files['error'][$count];
        $sorted_files[$count]['size']=$files['size'][$count];
        if (!is_uploaded_file($sorted_files[$count]['tmp_name'])) {
            unset($sorted_files[$count]);
        }
        $count++;
    }
    return $sorted_files;
}

That should take the $_FILES multidimensional array and rearrange it so that each sub-array of the $sorted_files array will relate to a single file and it’ll deal with culling out any cases where no file has been uploaded.

Just change the “image” in

$files=$_FILES['image'];

to suit the form

3

So, when I run that function, I will get an array back of the uploaded files?
I’m guessing that would go something like


get_files();
foreach ($sorted_files["name"] as $index => $file_name) {

...
...
}

thanks

4 

foreach ($sorted_files as $file) {
// do something with the file here
}

Each iteration of the loop you’ll have a single file in $file

5

the uploads dont seem to work, but I dont get an error…
Heres my php code…


function get_files($_FILES) {
    $files = $_FILES['file'];
    
    $file_count=count($files);
    $count=0;
    
    while ( $count <> $file_count-1 ) {
        $sorted_files[$count]['name']=$files['name'][$count];
        $sorted_files[$count]['type']=$files['type'][$count];
        $sorted_files[$count]['tmp_name']=$files['tmp_name'][$count];
        $sorted_files[$count]['error']=$files['error'][$count];
        $sorted_files[$count]['size']=$files['size'][$count];
        if (!is_uploaded_file($sorted_files[$count]['tmp_name'])) {
            unset($sorted_files[$count]);
        }
        $count++;
    }
    return $sorted_files;
} 
get_files();

foreach ($sorted_files as $file) {  

  if ($file == '') {
    continue;
  }

  $Type = $file["type"];
  $Name = $file["name"];
  $tmp_name = $file["tmp_name"];
  $Error = $file["error"];
  $Size = $file["size"];
  if($Error > 0){
      echo 'An error ocurred when uploading.';
  }
  if(($Type != 'image/png') && ($Type != 'image/gif') && ($Type != 'image/jpeg') && ($Type != 'image/bmp'))
  {
      echo 'Unsupported filetype uploaded.';
  }
  if($Size > 102400){
      echo 'File uploaded exceeds maximum upload size.';
  }
  $now = time(); 
  while(file_exists($uploadFilename = $now.'-'.$Name)) 
  { 
      $now++; 
  } 
  if(!move_uploaded_file($tmp_name, 'uploads/'.$uploadFilename)){
      echo 'Error uploading file - check destination is writeable.';
  } 
}

Thanks, im really trying to understand this, but I sort of get lost on the function (think I need a parameter, but dont know what to use on the methods call)

6

Add the following to the start of the script, the next line, after the opening <?php does PHP then report any errors?


error_reporting(E_ALL | E_STRICT | E_ERROR | E_WARNING | E_PARSE | E_NOTICE | E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_COMPILE_WARNING | E_USER_ERROR | E_USER_WARNING | E_USER_NOTICE | E_RECOVERABLE_ERROR);
ini_set('display_errors', 1);

The top two lines are supposed to be one line, it’s gotten word-wrapped by the forum’s text editor