Solved

Multiple files upload form

Posted on 2012-12-28
5
321 Views
Last Modified: 2012-12-30
Hi experts,

I am using this form to upload multiple files and need a script to add more fields if needed, or one that uploads every file from a selected folder.

Thanks.

<html>
<head>
<title>HTML Upload Form</title>
</head>
<body>
<form action="load.php" method="post" enctype="multipart/form-data">
<table
<tr><th>
<input type="file" name="files[]" /><br />
<input type="file" name="files[]" /><br />
<input type="file" name="files[]" /><br />
<input type="file" name="files[]" /><br />
<input type="file" name="files[]" /><br />
</th><th>
<input type="file" name="files[]" /><br />
<input type="file" name="files[]" /><br />
<input type="file" name="files[]" /><br />
<input type="file" name="files[]" /><br />
<input type="file" name="files[]" /><br />
</th></tr>
<tr><td colspan="2"><input type="submit" value="Send" /></td></tr>
</form>
</body>
</html>

Open in new window


<?php
//places files into same dir as form resides
foreach ($_FILES["files"]["error"] as $key => $error) {
   if ($error == UPLOAD_ERR_OK) {
       echo"$error_codes[$error]";
       move_uploaded_file(
         $_FILES["files"]["tmp_name"][$key], 
         $_FILES["files"]["name"][$key] 
       ) or die("Problems with upload");
   }
}
?>

Open in new window

0
Comment
Question by:jebbie635
  • 3
  • 2
5 Comments
 
LVL 109

Expert Comment

by:Ray Paseur
ID: 38728534
Not sure I understand the requirement, but this will let you upload several files.   See line 26-27.
<?php // RAY_upload_example.php
error_reporting(E_ALL);


// MANUAL REFERENCE PAGES YOU MUST UNDERSTAND TO UPLOAD FILES
// http://php.net/manual/en/features.file-upload.php
// http://php.net/manual/en/features.file-upload.common-pitfalls.php
// http://php.net/manual/en/function.move-uploaded-file.php
// http://php.net/manual/en/reserved.variables.files.php

// MANUAL PAGES THAT ARE IMPORTANT IF YOU ARE DEALING WITH LARGE FILES
// http://php.net/manual/en/ini.core.php#ini.upload-max-filesize
// http://php.net/manual/en/ini.core.php#ini.post-max-size
// http://php.net/manual/en/info.configuration.php#ini.max-input-time


// PHP 5.1+  SEE http://php.net/manual/en/function.date-default-timezone-set.php
date_default_timezone_set('America/Chicago');

// ESTABLISH THE NAME OF THE 'uploads' DIRECTORY (MUST ALREADY EXIST)
$uploads = 'RAY_junk';

// ESTABLISH THE BIGGEST FILE SIZE WE CAN ACCEPT - ABOUT 8 MB
$max_file_size = '8000000';

// ESTABLISH THE MAXIMUM NUMBER OF FILES WE CAN UPLOAD
$nf = 3;

// ESTABLISH THE KINDS OF FILE EXTENSIONS WE CAN ACCEPT
$file_exts = array
( 'jpg'
, 'gif'
, 'png'
, 'txt'
, 'pdf'
)
;

// LIST OF THE ERRORS THAT MAY BE REPORTED IN $_FILES[]["error"] (THERE IS NO #5)
$errors = array
( 0 => "Success!"
, 1 => "The uploaded file exceeds the upload_max_filesize directive in php.ini"
, 2 => "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form"
, 3 => "The uploaded file was only partially uploaded"
, 4 => "No file was uploaded"
, 5 => "UNDEFINED ERROR"
, 6 => "Missing a temporary folder"
, 7 => "Cannot write file to disk"
)
;




// IF THERE IS NOTHING IN $_POST, PUT UP THE FORM FOR INPUT
if (empty($_POST))
{
    ?>
    <h2>Upload <?php echo $nf; ?> file(s)</h2>

    <!--
        SOME THINGS TO NOTE ABOUT THIS FORM...
        ENCTYPE IN THE HTML <FORM> STATEMENT
        MAX_FILE_SIZE MUST PRECEDE THE FILE INPUT FIELD
        INPUT NAME= IN TYPE=FILE DETERMINES THE NAME YOU FIND IN $_FILES ARRAY
        ABSENCE OF ACTION= ATTRIBUTE IN FORM TAG CAUSES POST TO SAME URL
    -->

    <form name="UploadForm" enctype="multipart/form-data" method="post">
    <input type="hidden" name="MAX_FILE_SIZE" value="<?php echo $max_file_size; ?>" />
    <p>
    Find the file(s) you want to upload and click the "Upload" button below.
    </p>

    <?php // CREATE INPUT STATEMENTS FOR UP TO $n FILE NAMES
    for ($n = 0; $n < $nf; $n++)
    {
        echo "<input name=\"userfile$n\" type=\"file\" size=\"80\" /><br/>\n";
    }
    ?>

    <br/>Check this box <input autocomplete="off" type="checkbox" name="overwrite" /> to <strong>overwrite</strong> existing files.
    <input type="submit" value="Upload" />
    </form>
    <?php
    die();
}
// END OF THE FORM SCRIPT



// WE HAVE GOT SOMETHING IN $_POST - RUN THE ACTION SCRIPT
else
{
    // THERE IS POST DATA - PROCESS IT
    echo "<h2>Results: File Upload</h2>\n";

    // ACTIVATE THIS TO SEE WHAT IS COMING THROUGH
    // echo "<pre>"; var_dump($_FILES); var_dump($_POST); echo "</pre>\n";

    // ITERATE OVER THE CONTENTS OF $_FILES
    foreach ($_FILES as $my_uploaded_file)
    {
        // SKIP OVER EMPTY SPOTS - NOTHING UPLOADED
        $error_code = $my_uploaded_file["error"];
        if ($error_code == 4) continue;

        // SYNTHESIZE THE NEW FILE NAME
        $f_type    = trim(strtolower(end    (explode( '.', basename($my_uploaded_file['name'] )))));
        $f_name    = trim(strtolower(current(explode( '.', basename($my_uploaded_file['name'] )))));
        $my_new_file
        = getcwd()
        . DIRECTORY_SEPARATOR
        . $uploads
        . DIRECTORY_SEPARATOR
        . $f_name
        . '.'
        . $f_type
        ;
        $my_file
        = $uploads
        . DIRECTORY_SEPARATOR
        . $f_name
        . '.'
        . $f_type;

        // OPTIONAL TEST FOR ALLOWABLE EXTENSIONS
        if (!in_array($f_type, $file_exts)) die("Sorry, $f_type files not allowed");

        // IF THERE ARE ERRORS
        if ($error_code != 0)
        {
            $error_message = $errors[$error_code];
            die("Sorry, Upload Error Code: $error_code: $error_message");
        }

        // GET THE FILE SIZE
        $file_size = number_format($my_uploaded_file["size"]);

        // IF THE FILE IS NEW (DOES NOT EXIST)
        if (!file_exists($my_new_file))
        {
            // IF THE MOVE FUNCTION WORKED CORRECTLY
            if (move_uploaded_file($my_uploaded_file['tmp_name'], $my_new_file))
            {
                $upload_success = 1;
            }
            // IF THE MOVE FUNCTION FAILED
            else
            {
                $upload_success = -1;
            }
        }

        // IF THE FILE ALREADY EXISTS
        else
        {
            echo "<br/><b><i>$my_file</i></b> already exists.\n";

            // SHOULD WE OVERWRITE THE FILE? IF NOT
            if (empty($_POST["overwrite"]))
            {
                $upload_success = 0;
            }
            // IF WE SHOULD OVERWRITE THE FILE, TRY TO MAKE A BACKUP
            else
            {
                $now    = date('Y-m-d');
                $my_bak = $my_new_file . '.' . $now . '.bak';
                if (!copy($my_new_file, $my_bak))
                {
                    echo "<br/><strong>Attempted Backup Failed!</strong>\n";
                }
                if (move_uploaded_file($my_uploaded_file['tmp_name'], $my_new_file))
                {
                    $upload_success = 2;
                }
                else
                {
                    $upload_success = -1;
                }
            }
        }

        // REPORT OUR SUCCESS OR FAILURE
        if ($upload_success == 2) { echo "<br/>It has been overwritten.\n"; }
        if ($upload_success == 1) { echo "<br/><strong>$my_file</strong> has been saved.\n"; }
        if ($upload_success == 0) { echo "<br/><strong>It was NOT overwritten.</strong>\n"; }
        if ($upload_success < 0)  { echo "<br/><strong>ERROR: $my_file NOT SAVED - SEE WARNING FROM move_uploaded_file() COMMAND</strong>\n"; }
        if ($upload_success > 0)
        {
            echo "$file_size bytes uploaded.\n";
            if (!chmod ($my_new_file, 0755))
            {
                echo "<br/>chmod(0755) FAILED: fileperms() = ";
                echo substr(sprintf('%o', fileperms($my_new_file)), -4);
            }
            echo "<br/><a target=\"_blank\" href=\"$my_file\">See the file $my_file</a>\n";
        }
    // END FOREACH ITERATOR - EACH ITERATION PROCESSES ONE FILE
    }
}

Open in new window

0
 

Author Comment

by:jebbie635
ID: 38728603
Is it possible to upload all files from a folder with one click?
0
 
LVL 109

Expert Comment

by:Ray Paseur
ID: 38728633
Probably not.  For security reasons, the server-side script cannot prepopulate the $_FILES array.  Think about it ... If the server could do that, a server could use a combination of JS and server scripting to steal files from any computer that visited the web site.
0
 

Author Comment

by:jebbie635
ID: 38728709
You are right. I did not realize what i was asking. I just need a script that adds a number of input fields to the form by clicking a button, this way i wont have to reload the form or edit the source to get the exact number of fields needed for every upload.
0
 
LVL 109

Accepted Solution

by:
Ray Paseur earned 500 total points
ID: 38729005
In that case, HTML5 or a jQuery solution might be more on target.  See if any of these might be useful for you.
http://blueimp.github.com/jQuery-File-Upload/
http://www.uploadify.com/
http://docs.jquery.com/Tutorials:Multiple_File_Upload_Magic
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Generating table dynamically is the most common issue faced by php developers.... So it seems there is a need of an article that explains the basic concept of generating tables dynamically. It just requires a basic knowledge of html and little maths…
Introduction This article is intended for those who are new to PHP error handling (https://www.experts-exchange.com/articles/11769/And-by-the-way-I-am-New-to-PHP.html).  It addresses one of the most common problems that plague beginning PHP develop…
The viewer will learn how to count occurrences of each item in an array.
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing. Set up your basic HTML file. Open your form tag and set the method and action attributes.: (CODE) Set up your first few inputs one for the name and …

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question