PHP: $_FILES not working

a2jfreak

[php]
HTML:
<input type="file" name="a" size="30" />
<input type="file" name="b" size="30" />
<input type="file" name="c" size="30" />

PHP:
echo "=======\$_POST variables=======<br>\n";
foreach ($_POST as $key => $value) {
echo "$key\t= $value<br>\n";
}

echo "<br><br>=======\$_FILES variables=======<br>\n";
foreach ($_FILES as $key => $value) {
echo "$key\t= $value<br>\n";
}
[/php]

prints:

=======$_POST variables=======
a = abc.jpg
b = xyz.jpg
c = 123.jpg

=======$_FILES variables=======

Notice how the FILE input elements show up in $_POST and not $_FILES?
Any idea what's wrong? I know I must have something wrong (and probably something stupid) but I don't know what.

Kwitko

Two reasons. First, $_FILES is a multidimensional array, so typical $k=>$v won't work. Second, I'm almost positive $_FILES won't work unless you let the form know you're adding file upload. Try adding the following to your form:

<form enctype="multipart/form-data" name="add" method="post" action="youraction.php">
<input type="hidden" name="MAX_FILE_SIZE" value="3145728" />

Next, for displaying the results, because $_FILES is multidimensional, you're going to need a foreach in your foreach:

[php]
echo "=======\$_FILES variables=======\n";
foreach ($_FILES as $key => $value) {
foreach ($value as $value2) {
echo "$key\t= $value2\n<br />";
}
}[/php]

The problem is that it's going to display each value of the array. I'm not sure how to display just the filename.

a2jfreak

You're correct, it is multi-dimensional. I just had the key/value there to have it iterate through the names. The way to make it show the filename and other stuff is like:
[php]
$attachment = $_FILES[$file];
$attachment_name = $_FILES[$file];
[/php]

The enctype is what was wrong . . . thanks!

Mr. Kwitko wrote:

Two reasons. First, $_FILES is a multidimensional array, so typical $k=>$v won't work. Second, I'm almost positive $_FILES won't work unless you let the form know you're adding file upload. Try adding the following to your form:

<form enctype="multipart/form-data" name="add" method="post" action="youraction.php">
<input type="hidden" name="MAX_FILE_SIZE" value="3145728" />

Next, for displaying the results, because $_FILES is multidimensional, you're going to need a foreach in your foreach:

[php]
echo "=======\$_FILES variables=======\n";
foreach ($_FILES as $key => $value) {
foreach ($value as $value2) {
echo "$key\t= $value2\n<br />";
}
}[/php]

The problem is that it's going to display each value of the array. I'm not sure how to display just the filename.