[RESOLVED] File upload form as array

[naskar]

Hi there I'm trying to set up a script to upload a number of files.
Based on a user specified value (currently hard coded) PHP generates the respective amount of file upload fields :

for($i=0;$i < $number;$i++)
		{
			echo "Choose a file to upload: <input type=\"file\" name=\"upload$i\"  /><br />";			
		}

Everything works out now but i'm having problems getting the file information like so:

$filename = $_FILES["upload0"]["name"];
		$filesize = $_FILES["upload0"]["size"];
		$filetype = $_FILES["upload0"]["type"];
		$file_tmp = $_FILES["upload0"]["tmp_name"];
		$file_err = $_FILES["upload0"]["error"]; 

Nothing appears.

I've tried

echo "Choose a file to upload: <input type=\"file\" name=\"upload[]\"  /><br />";			

With the above code, If i have for example 2 input fields I can't get any info about the uploaded files using

foreach($_FILES["upload"] as $a)

Any suggestions? I'm basically trying to loop through all the file information once the upload button is clicked.

The full script is :

<?php

class uploadDiag
{
	function __construct($number)
	{
	 if(!isset($_POST['submit']))
	 {
	?>
		<form enctype="multipart/form-data" action="<?php $_SERVER['PHP_SELF'] ?>" method="POST"> 
        <!--form has to have attribute enctype="multipart/form-data" otherwise the file upload will not work. -->
		<input type="hidden" name="MAX_FILE_SIZE" value="100000" /> 
        <!--The MAX_FILE_SIZE hidden field (measured in bytes) must precede the file input field, and its value is the maximum filesize accepted by PHP.-->
    <?php
		for($i=0;$i < $number;$i++)
		{
			echo "Choose a file to upload: <input type=\"file\" name=\"upload$i\"  /><br />";			
		}
	?>
    	<input type="submit" value="Upload File" name="submit" />
		</form>
    <?php   

	 }	 
	 else
	 {
		$filename = $_FILES["upload0"]["name"];
		$filesize = $_FILES["upload0"]["size"];
		$filetype = $_FILES["upload0"]["type"];
		$file_tmp = $_FILES["upload0"]["tmp_name"];
		$file_err = $_FILES["upload0"]["error"]; 

	printf("File Name is : %s File size is %s",$filename,$filesize);



 }
}
}

?>

Thanks in advance 🙂

[bogu]

[man]print_r[/man] the $_FILES array and print here the results you get, if don't know how to parse the array will help you ....

BTW, this is the way to do it:

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

[naskar]

with two File upload fields, after uploading two images

print_r($_FILES['upload']);

The output is

Array ( [name] => Array ( [0] => Forest.jpg [1] => Dock.jpg ) [type] => Array ( [0] => [1] => ) [tmp_name] => Array ( [0] => [1] => ) [error] => Array ( [0] => 2 [1] => 2 ) [size] => Array ( [0] => 0 [1] => 0 ) )

[bogu]

Check the error you get: Error Messages Explained

[naskar]

Exceeds the max file size, yeah. My problem was how do I extract the information in that array to display info for each file upload in the proper manner

[bogu]

[man]foreach[/man], [man]for[/man], [man]while[/man]
Array Functions

This is all you need to know...

[naskar]

Based on the output I got

Array ( [name] => Array ( [0] => Forest.jpg [1] => Dock.jpg ) [type] => Array ( [0] => [1] => ) [tmp_name] => Array ( [0] => [1] => ) [error] => Array ( [0] => 2 [1] => 2 ) [size] => Array ( [0] => 0 [1] => 0 ) )

How would I refer to, let's say the Name field of the first Uploaded image.
Foreach $FILES_['upload'] => $variable as $key => $name
When I use the above code, the $name shows 'Array'

Is it possible to go three levels down , like $FILES_['upload'] => $one => $two as $key => $name => $value?

Thanks

[Weedpacket]

naskar wrote:

Is it possible to go three levels down

Yes, in exactly the same way that you're already going two levels down where you had

$filename = $_FILES["upload0"]["name"]

PHP is outputting that array information in a more useful format than you're seeing because you're looking at the browser's attempt to render it as HTML. It's more like

Array (
	[name] => Array (
		[0] => Forest.jpg
		[1] => Dock.jpg
	)
	[type] => Array (
		[0] =>
		[1] =>
	)
	[tmp_name] => Array (
		[0] =>
		[1] =>
	)
	[error] => Array (
		[0] => 2
		[1] => 2
	)
	[size] => Array (
		[0] => 0
		[1] => 0
	)
)

So $_FILES['name'][0] is 'Forest.jpg' (notice that's only two levels).

[naskar]

sorry for the late reply. Thanks a lot for helping out you two 🙂

	foreach($_FILES["upload"] as $a)  

		{
			echo $a[0];			
		}
		foreach($_FILES["upload"] as $a)  

		{
			echo $a[1];			
		}

Right now, the above code outputs :

jPod.png
image/png
C:\Windows\Temp\phpC402.tmp

83320
vlcsnap-73023.png
image/png
C:\Windows\Temp\phpC412.tmp

64174

🙂

Any idea how I can get it to loop through X number of items instead of specifying a[0] and a[1]? Is there a function that goes 'while there is still stuff in the array: echo a[x] . x++ ?

Thanks for clearly explaining how the array was output Weedpacket.

[naskar]

Success! Thanks for all the help

for($x=0;$x<sizeof($_FILES["upload"]);$x++)
		{
			foreach($_FILES["upload"] as $a)  

			{
				echo $a[$x]."<br />";			
			}			
		}