I am working on a page that allows the user to "upload" multiple files at once (they are stored locally in folders relative to their type).
My problem is that when I try to pass $upFile1 and $fileInfo1 to writeResults() to update $fileInfo1 with information about $upFile1, the echoed result is empty.
I did some research and this appears to be a scoping issue, but I'm not sure about the best way to get around this having just started learning PHP last month.
Any help would be greatly appreciated.
foo.html
<!DOCTYPE HTML>
<html>
<head>
<title>File Upload</title>
</head>
<body>
<form method="post" action="foo.php" enctype="multipart/form-data">
<p>
<b>File 1:</b><br>
<input type="file" name="upFile1"><br/>
<br/>
<b>File 2:</b><br>
<input type="file" name="upFile2"><br/>
<br/>
</p>
<p>
<input type="submit" name="submit" value="Upload Files">
</p>
</form>
</body>
</html>
foo.php
<?php
$upFile1 = $_FILES['upFile1'];
$upFile2 = $_FILES['upFile2'];
$fileInfo1 = "";
$fileInfo2 = "";
// Check if directories exist before uploading files to them
if (!file_exists('./files/images')) mkdir('./files/images', 0777, true);
if (!file_exists('./files/text')) mkdir('./files/text', 0777, true);
// Copies the file from the source input to its corresponding folder
function copyTo($source) {
if (($source['type'] == 'image/jpg') || ($source['type'] == 'image/png')) {
@copy($source['tmp_name'], "./files/images/".$source['name']);
}
if ($source['type'] == 'text/plain') {
@copy($source['tmp_name'], "./files/text/".$source['name']);
}
}
// Outputs file data for input file to destination
function writeResults($source, $destination) {
$destination .= "You sent: ";
$destination .= $source['name'];
$destination .= ", a ";
$destination .= $source['size'];
$destination .= "byte file with a mime type of ";
$destination .= $source['type'];
$destination .= ".";
// echoing $destination outputs the correct information, however
// $fileInfo1 and $fileInfo2 aren't affected at all.
}
// Check if both of the file uploads are not empty
if ((!empty($upFile1['name'])) || (!empty($upFile2['name']))) {
// Check if the first file upload is not empty
if (!empty($upFile1['name'])) {
copyTo($upFile1);
writeResults($upFile1, $fileInfo1);
}
// Check if the second file upload is not empty
if (!empty($upFile2['name'])) {
copyTo($upFile2);
writeResults($upFile2, $fileInfo2);
}
} else {
die("No input files specified.");
}
?>
<!DOCTYPE HTML>
<html>
<head>
<title>File Upload</title>
</head>
<body>
<p>
<!-- This is empty -->
<?php echo "$fileInfo1"; ?>
</p>
<p>
<!-- This is empty -->
<?php echo "$fileInfo2"; ?>
</p>
</body>
</html>
