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Editorial Team
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Asked: 2026-05-27T23:17:09+00:00

I’m currently uploading a single file successfully with the following form: <html> <body> <form

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I’m currently uploading a single file successfully with the following form: 

<html>
<body>

<form action="upload_file.php" method="post" enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="file" id="file" /> 

<br />
<input type="submit" name="submit" value="Submit" />
</form>

</body>
</html>

And with the following script: 

<?php
error_reporting(E_ALL);



    if (($_FILES["file"]["size"] < 20000))
      {
      if ($_FILES["file"]["error"] > 0)
        {
        echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
        }
      else
        {
        echo "Upload: " . $_FILES["file"]["name"] . "<br />";
        echo "Type: " . $_FILES["file"]["type"] . "<br />";
        echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
        echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";


        $moved = move_uploaded_file($_FILES["file"]["tmp_name"], "C:/inetpub/wwwroot/PHP_Ramp/upload/" . $_FILES["file"]["name"]);

        if ($moved) {
            echo "Move: Success <br/>";
        }
        else {
            echo "Move Failed <br/>";
        }


          echo "Stored in: " . "C:/inetpub/wwwroot/PHP_Ramp/upload/" . $_FILES["file"]["name"];
          }
        }

    else
      {
      echo "Invalid file";
      }
    ?>

I’m now trying to allow the user to select three different files from the form. I’ve found a few guides that show how to do something similar, but I can’t quite get it working.

I’ve modified the form as follows (to include three inputs): 

<html>
<body>

<form action="upload_file.php" method="post" enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="file" id="file" /> 
<input type="file" name="file" id="file" />
<input type="file" name="file" id="file" />
<br />
<input type="submit" name="submit" value="Submit" />
</form>

</body>
</html>

But I’m not sure how to modify the php to handle all three files. I know I need to iterate through _FILES but everything I’ve tried isn’t working. Any pointers would be appreciated.

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1 Answer

  1. Editorial Team

    Each file element must have a unique name, or use PHP’s array shorthand:

    <input type="file" name="file1" />
<input type="file" name="file2" />

    or

    <input type="file" name="file[]" />
<input type="file" name="file[]" />

    Remember – the name attribute defines how you’ll identify that field on the server, and if you use the same name multiple times, PHP will overwrite previous copies with the latest one as it parses through the submitted data. The array notation ([]) tells PHP that you INTENDED to have multiple fields with the same name, and that each copy it finds should be added to an array, not overwritten.

    For the unique name version, you’d handle each as you are right now with the single file.

    For the array version, PHP has a design stupidity that requires slightly different handling. You end up with a $_FILES array that looks like

    $_FILES = array(
    'fieldname' => array(
         'name' => array(
             0 => 'first file',
             1 => 'second file',
             etc...
         )
    )
)
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