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Turning this upload script from "1 file upload capable" to "multi-file upload capable"

Posted on 2008-10-13
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Last Modified: 2012-06-21
Hi everyone hope you are all well.
Guys I have the following php script, that currently is only 1-file-upload capable.
Id like to modify it so that it is mulit-file upload capable....let's say 5 at a time.

I have included the script in the code snippet.
Any help greatly appreciated.
=========================================== upload.php:
 
<!-- ******************************************************
HTML FORM SECTION:
*********************************************************** -->
 
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data">
   <p>
      <label for="file">Select a file:</label> 
      <input type="file" name="userfile" id="file"><br />
      <input type="submit" value="Submit" />
   <p>
</form>
 
 
<!-- ******************************************************
UPLOAD SECTION:
*********************************************************** -->
 
<?php
      $allowed_filetypes = array('.jpg','.gif','.bmp','.png'); 					
      $max_filesize = 524288; 																
      $upload_path = './files/'; 															
 
   	$filename = $_FILES['userfile']['name']; 											
   	$ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); 
 
  		if(!in_array($ext,$allowed_filetypes))
     		die('The file you attempted to upload is not allowed.');
 
   	if(filesize($_FILES['userfile']['tmp_name']) > $max_filesize)
      	die('The file you attempted to upload is too large.');
 
   	if(!is_writable($upload_path))
      	die('You cannot upload to the specified directory, please CHMOD it to 777.');
   	
   	if(move_uploaded_file($_FILES['userfile']['tmp_name'],$upload_path . $filename))
         echo 'Your file upload was successful, view the file <a href="' . $upload_path . $filename . '" title="Your File">here</a>'; 
      else
         echo 'There was an error during the file upload.  Please try again.'; 
  
?>

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Question by:Simon336697
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9 Comments
 
LVL 5

Assisted Solution

by:jericotolentino
jericotolentino earned 120 total points
ID: 22700827
See example three of the PHP documentation on handling file uploads:

http://www.php.net/file_upload
0
 
LVL 17

Accepted Solution

by:
psimation earned 1760 total points
ID: 22700837
Well, just duplicate the code for more instances of the file input boxes...

I've started to give you an idea of what I mean in the code snippet - just carry on doing the same - ie, make 4 more $ext{2...5} where you substitute $filename for the $filename2...#filename5 etc.

most importantly is the 4 extra "if" statements for each of the new files:

if(move_uploaded_file($_FILES['userfile2']['tmp_name'],$upload_path . $filename)){
}
if(move_uploaded_file($_FILES['userfile3']['tmp_name'],$upload_path . $filename)){
}
etc.


=========================================== upload.php:
 
<!-- ******************************************************
HTML FORM SECTION:
*********************************************************** -->
 
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data">
   <p>
      <label for="file">Select a file:</label> 
      <input type="file" name="userfile" id="file"><br />
<input type="file" name="userfile2" id="file"><br />
<input type="file" name="userfile3" id="file"><br />
<input type="file" name="userfile4" id="file"><br />
<input type="file" name="userfile5" id="file"><br />
      <input type="submit" value="Submit" />
   <p>
</form>
 
 
<!-- ******************************************************
UPLOAD SECTION:
*********************************************************** -->
 
<?php
      $allowed_filetypes = array('.jpg','.gif','.bmp','.png');                                  
      $max_filesize = 524288;                                                                                                                           
      $upload_path = './files/';                                                                                                                        
 
        $filename = $_FILES['userfile']['name'];
$filename2 = $_FILES['userfile2']['name'];
$filename3 = $_FILES['userfile3']['name'];
$filename4 = $_FILES['userfile4']['name'];
$filename5 = $_FILES['userfile5']['name'];                                                                                        
        $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); 
 
                if(!in_array($ext,$allowed_filetypes))
                die('The file you attempted to upload is not allowed.');
 
        if(filesize($_FILES['userfile']['tmp_name']) > $max_filesize)
        die('The file you attempted to upload is too large.');
 
        if(!is_writable($upload_path))
        die('You cannot upload to the specified directory, please CHMOD it to 777.');
        
        if(move_uploaded_file($_FILES['userfile']['tmp_name'],$upload_path . $filename))
         echo 'Your file upload was successful, view the file <a href="' . $upload_path . $filename . '" title="Your File">here</a>'; 
      else
         echo 'There was an error during the file upload.  Please try again.'; 
  
?>

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LVL 15

Assisted Solution

by:babuno5
babuno5 earned 120 total points
ID: 22700945
may be you can try this also for multiple file uploads which requires flash

http://www.element-it.com/DEMOMULTIPOW.aspx
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LVL 1

Author Comment

by:Simon336697
ID: 22700957
Hi psimation,
Thanks for that.
Is there any way instead of duplicating the code, to loop through files for multiple input boxes?
0
 
LVL 17

Expert Comment

by:psimation
ID: 22701023
Yes, you could put the current code into a foreach loop and step through each $_POST variable to get the names of the form fields, but you would then need to call your file input boxes something unique/easy to check for, since $_POST will contain all form elements.

So, you could do something like this maybe:





foreach($_POST as $key=>$val) {
 
if (($val == "userfile1")||($val=="userfile2")||($val=="userfile3")||($val=="userfile4")||($val=="userfile5")){
$filename = $_FILES[$val]['name'];
$ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); 
 
if(!in_array($ext,$allowed_filetypes))
 die('The file you attempted to upload is not allowed.');
 
if(filesize($_FILES[$val]['tmp_name']) > $max_filesize)
 die('The file you attempted to upload is too large.');
 
if(!is_writable($upload_path))
 die('You cannot upload to the specified directory, please CHMOD it to 777.');
       if(move_uploaded_file($_FILES[$val]['tmp_name'],$upload_path . $filename))
         echo 'Your file upload was successful, view the file <a href="' . $upload_path . $filename . '" title="Your File">here</a>'; 
      else
         echo 'There was an error during the file upload.  Please try again.';
}
} 

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0
 
LVL 1

Author Comment

by:Simon336697
ID: 22701333
psimation, thats great...thanks so much for your skillful answers...really appreciate it psimation.
0
 
LVL 1

Author Comment

by:Simon336697
ID: 22701336
Thanks also to:
jericotolentino and babuno5
0
 
LVL 17

Expert Comment

by:psimation
ID: 22701359
No Problem Simon

Just remember to close the question by accepting one or more of the comments as solutions - else the question will remain open on the system.
0
 
LVL 1

Author Closing Comment

by:Simon336697
ID: 31505551
Thank you guys :>)
0

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