PHP 開発ノート シリーズ (8) - アップロードとダウンロード

file:file-list.php
url:http://localhost:88/download-upload/file-list.php
<?php
    $location = './';
    
    $dp = opendir($location);
    
    while ($entry = readdir($dp)){
        if(is_dir($entry))
        {
            echo '[DIR] '.$entry. '<br/>';
        }elseif (is_file($entry))
        {
            echo '[FILE] <a href=download.php?filename='.$entry.'>'.$entry. '</a><br/>';
        }
    }
    closedir($dp);
    
    echo "<a href='upload-form.php'>upload</a>";

?>

file:download.php
url:http://localhost:88/download-upload/download.php?filename=xxx
<?php
    if (isset($_GET['filename'])) {
        $filename = $_GET['filename'];
    } else {
        die('Parameter filename doesn\'t exist!');
    }
    
    if (!file_exists($filename)) {
       die($filename.' doesn\'t exist!'); 
    }
    
    Header("Content-type: application/octet-stream");
    Header("Accept-Ranges: bytes");
    Header("Accept-Length: ".filesize($filename));
    Header("Content-Disposition: attachment; filename=" . $filename); 
    
    readfile($filename);
    
?>

file:upload-form.php
url:http://localhost:88/download-upload/upload-form.php
<form action="upload.php" method="post" enctype="multipart/form-data">
	<label for="file">Filename:</label> 
	<input type="file" name="file" id="file" /> <br />
	<input type="submit" name="submit" value="Submit" />
</form>

file:upload.php
url:http://localhost:88/download-upload/upload.php
<?php
if ($_FILES["file"]["error"] > 0)
{
    echo "Error: ".$_FILES["file"]["error"] . "<br />";
}
else
{
    echo "Upload: ".$_FILES["file"]["name"]."<br />";
    echo "Type: ".$_FILES["file"]["type"]."<br />";
    echo "Size: ".($_FILES["file"]["size"] / 1024)." Kb<br />";
    echo "Temp file: ".$_FILES["file"]["tmp_name"]."<br />";
    
    move_uploaded_file($_FILES["file"]["tmp_name"], $_FILES["file"]["name"]);
    
    echo "<a href='file-list.php'>file-list</a>";
}
?>