Uploading multiple images with one input field

<form method="post" action="" enctype="multipart/form-data">
<input type="hidden" name="MAX_FILE_SIZE" value="500000">
Add Photos <input multiple="true" onchange="this.form.submit()" type="file" name="photos[]"/>

<input type="hidden" name="sendfiles" value="Send Files" />
</form>

    <?php
define ("MAX_SIZE","5000"); 
function getExtension($str)
{
         $i = strrpos($str,".");
         if (!$i) { return ""; }
         $l = strlen($str) - $i;
         $ext = substr($str,$i+1,$l);
         return $ext;
}

$errors=0;

if(isset($_POST['sendfiles'])) 
{
  $uploaddir = "files/"; //a directory inside
    foreach ($_FILES['photos']['name'] as $name => $value)
    {
        $filename = stripslashes($_FILES['photos']['name'][$name]);
     //get the extension of the file in a lower case format
          $extension = getExtension($filename);
         $extension = strtolower($extension);
        echo "\n This is the extension: ",$extension;
         if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif")) 
         {
        //print error message
        ?>
           <h4>Unknown extension!</h4>
          <?php
             $errors=1;
         }
        else
        {
            $size=filesize($_FILES['photos']['tmp_name'][$name]);
            if ($size > MAX_SIZE*1024)
            {
            ?>
               <h4>You have exceeded the size limit!</h4>
              <?php
                $errors=1;
            }
            $image_name=$filename.'.'.$extension;
            $newname="files/".$image_name;
            $copied = copy($_FILES['photos']['tmp_name'][$name], $newname);
            if (!$copied) 
            {
                ?>
                <h4>Copy unsuccessfull!</h4>
                <?php
                $errors=1;
            }

        }

    }
    //echo "Images uploaded successfully";
}
//mysql_close($dbhandle);
?>

You are probably looking for something like uploadify or swfupload or plupload.


It works as-if there were multiple file fields­Docs, it's transparent to PHP. Here is some simple example code:

<html>
  <body>
    <form action="" method="post" enctype="multipart/form-data">
      <input type="file" name="fileField[]" id="fileField" multiple="multiple">
      <input type="text" name="test" value="test">
      <input type="submit" name="submit">
    </form>
  </body>
</html>
<?php
var_dump($_FILES, $_POST);

Store it on your host and request it. You can then play around with it, it will show you the structure of the $_FILES and $_POST array.

Example output:

array
  'fileField' => 
    array
      'name' => 
        array
          0 => string 'hakre-iterator-fun-cut-top.png' (length=30)
          1 => string 'hakre-iterator-fun-cut-middle.png' (length=33)
      'type' => 
        array
          0 => string 'image/png' (length=9)
          1 => string 'image/png' (length=9)
      'tmp_name' => 
        array
          0 => string '/tmp/php1A2.tmp' (length=15)
          1 => string '/tmp/php1A3.tmp' (length=15)
      'error' => 
        array
          0 => int 0
          1 => int 0
      'size' => 
        array
          0 => int 234001
          1 => int 213058
array
  'test' => string 'test' (length=4)
  'submit' => string 'Submit' (length=6)

See Uploading multiple files­Docs.