From Single file input array to Multiple files input array with PHP

PHP
1

Two problems:

  1. How can I check whether I receive a Single file input array or a Multiple files input array from a form?

  2. How can I change the Single file input array into the Multiple files input array?

Single file input array,

 Array
    (
        [file] => Array
            (
                [name] => Around the Shoreline of Plymouth01.jpg
                [type] => image/jpeg
                [tmp_name] => C:\\wamp\	mp\\php7FC5.tmp
                [error] => 0
                [size] => 258246
            )
    
    )

Multiple files input array,

Array
    (
        [file] => Array
            (
                [name] => Array
                    (
                        [0] => Around the Shoreline of Plymouth01.jpg
                    )
    
                [type] => Array
                    (
                        [0] => image/jpeg
                    )
    
                [tmp_name] => Array
                    (
                        [0] => C:\\wamp\	mp\\phpFF9D.tmp
                    )
    
                [error] => Array
                    (
                        [0] => 0
                    )
    
                [size] => Array
                    (
                        [0] => 258246
                    )
    
            )
    
    )

This is what I came out with but it is still not correct…

 $array = array();
    foreach ($_FILES as $key => $fileItSelf) 
    {
      
    	foreach ($fileItSelf as $key => $value) 
    	{
    		$array[] = array($key => $value);
    		//$value[]
    	}
    	
    }
    
    print_r($array);

result:

 Array
    (
        [0] => Array
            (
                [name] => Around the Shoreline of Plymouth01.jpg
            )
    
        [1] => Array
            (
                [type] => image/jpeg
            )
    
        [2] => Array
            (
                [tmp_name] => C:\\wamp\	mp\\php4C50.tmp
            )
    
        [3] => Array
            (
                [error] => 0
            )
    
        [4] => Array
            (
                [size] => 258246
            )
    
    )

Thanks,
Lau

2

[FPHP]is_array[/FPHP] will be able to tell you if there’s more than one file.

As far as transformation: Why do you need to? But if you really wanted to:


$values = array_values($_FILES['file']);
foreach(array_keys($_FILES['file']) AS $index => $key) {
  $out['file'][$key][0] = $values[$index];
}
3

Thanks StarLion,

Your code returns this,

Array
(
    [file] => Array
        (
            [0] => Array
                (
                    [name] => Around the Shoreline of Plymouth01.jpg
                    [type] => image/jpeg
                    [tmp_name] => C:\\wamp\	mp\\phpAB90.tmp
                    [error] => 0
                    [size] => 258246
                )
 
        )

But I actually need it like this,

Array
(
    [file] => Array
        (
            [name] => Array
                (
                    [0] => The Smashing Pumpkins
                )
 
            [type] => Array
                (
                    [0] => image/jpeg
                )
 
            [tmp_name] => Array
                (
                    [0] => C:\\wamp\	mp\\phpBE71.tmp
                )
           ....
 
        )
 
)
4

No, my code gives exactly what you want. Your input must be malformed.

You said the input was


 Array
    (
        [file] => Array
            (
                [name] => Around the Shoreline of Plymouth01.jpg
                [type] => image/jpeg
                [tmp_name] => C:wamptmpphp7FC5.tmp
                [error] => 0
                [size] => 258246
            )
    )

So, when I translate this out into PHP to simulate the input:


<?php
$_FILES =  array('file' => array('name' => "Around the Shoreline of Plymouth01.jpg",'type' => 'image/jpeg','tmp_name' => 'C:wamptmpphpAB90.tmp','error' => 0,'size' => 258246));

$values = array_values($_FILES['file']);
foreach(array_keys($_FILES['file']) AS $index => $key) {
  $out['file'][$key][0] = $values[$index];
} 

print_r($out);
?>

I get:


Array
(
    [file] => Array
        (
            [name] => Array
                (
                    [0] => Around the Shoreline of Plymouth01.jpg
                )

            [type] => Array
                (
                    [0] => image/jpeg
                )

            [tmp_name] => Array
                (
                    [0] => C:wamptmpphpAB90.tmp
                )

            [error] => Array
                (
                    [0] => 0
                )

            [size] => Array
                (
                    [0] => 258246
                )

        )

)

Which is exactly what you asked for.

5

Thanks StarLion!

Got it working as in your code now.

<?php

$values = array_values($_FILES['file']);
foreach(array_keys($_FILES['file']) AS $index => $key) {
  $out['file'][$key][0] = $values[$index];
} 

?>

but why it does work like this?

<?php

$values = array_values($_FILES);
foreach(array_keys($_FILES) AS $index => $key) {
  $out[$key][0] = $values[$index];
} 

?>

Thanks,
Lau

6

Because $_FILES is not the base array that you’re trying to walk through - $_FILES[‘yourformfieldnamehere’] is.

Clicky linky.
http://hu.php.net/manual/en/features.file-upload.post-method.php

7

Got it thanks for the help!

is_array will be able to tell you if there's more than one file.

I still cannot work it out to determine if there’s more than one file with is_array - could you please give me some hint?

Thanks!

8

if $_FILES[‘file’][‘name’] is an array, there are multiple files. If it’s just a string, there’s only 1 file.

9

Thanks. Got that!

if(!is_array($_FILES['file']['name']))
{
	
	$values = array_values($_FILES['file']);
	foreach(array_keys($_FILES['file']) as $index => $key) 
	{
		$out['file'][$key][0] = $values[$index];
	} 

	print_r($out);

}

Thanks so much for the help! :smiley: