Fájlok letöltése php-ban kilistázás után

Question

Egy honlapon azt szeretnénk megoldani php-ban, ha egy könyvtárba feltöltünk bármilyen kiterjesztésű fájt, akkor azt egy kilistázás után, a fájl nevére kattintva ( ami egy linkként jelenik meg) töltse le.


<?php 
	$dir = "../doc";
	$dh = opendir($dir);
	while (false !== ($filename = readdir($dh))) {
		if (!is_dir($dir."/".$filename)) {
		echo "<a href=".$dir."/".$filename.">".$filename."</a><br>";
				}
				
			}
	?>

Ez a kódrészlet kilistázza amik fent vannak a tárhelyen a doc mappában és ha rákattintok akkor megnyitja.

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Accepted Answer

Élőszőr is a kérdés a prog.hu-n tedd fel. De hogy ne így engedjelek oda, íme egy tipp:

1. Keress a php manuallban ITT
2. Esetleg egy nagyon egyszerü script:


List all files in a directory

<?php 
// Note that !== did not exist until 4.0.0-RC2 
if ($handle = opendir('/path/to/files')) { 
    echo "Directory handle: $handle\n"; 
    echo "Files:\n"; 

    /* This is the correct way to loop over the directory. */ 
    while (false !== ($file = readdir($handle))) { 
        echo "$file\n"; 
    } 

    /* This is the WRONG way to loop over the directory. */ 
    while ($file = readdir($handle)) { 
        echo "$file\n"; 
    } 

    closedir($handle); 
} 
?> 

List all files in the current directory and strip out . and .. 
<?php 
if ($handle = opendir('.')) { 
    while (false !== ($file = readdir($handle))) { 
        if ($file != "." && $file != "..") { 
            echo "$file\n"; 
        } 
    } 
    closedir($handle); 
} 
?>

Esetleg:


<?php
// This is highly stolen from Ash Young <ash@evoluted.net>. www.evoluted.net
// I rewrote it to do what I wanted it to do.
//Global Settings
$root = "/your/path/to/a/directory/";  // this will the the root position of this script
$filetypes = array (
                'png' => 'jpg.gif',
                'jpeg' => 'jpg.gif',
                'bmp' => 'jpg.gif',
                'jpg' => 'jpg.gif',
                'gif' => 'gif.gif',
                'zip' => 'archive.png',
                'rar' => 'archive.png',
                'exe' => 'exe.gif',
                'setup' => 'setup.gif',
                'txt' => 'text.png',
                'htm' => 'html.gif',
                'html' => 'html.gif',
                'fla' => 'fla.gif',
                'swf' => 'swf.gif',
                'xls' => 'xls.gif',
                'doc' => 'doc.gif',
                'sig' => 'sig.gif',
                'fh10' => 'fh10.gif',
                'pdf' => 'pdf.gif',
                'psd' => 'psd.gif',
                'rm' => 'real.gif',
                'mpg' => 'video.gif',
                'mpeg' => 'video.gif',
                'mov' => 'video2.gif',
                'avi' => 'video.gif',
                'eps' => 'eps.gif',
                'gz' => 'archive.png',
                'asc' => 'sig.gif',
                'wma' => 'audio.jpg',
                'mp3' => 'audio.jpg',
            );

//Set our root position and make sure the URL input is not manually manipulated
if ((substr($_GET['dir'],0,2) != '/.') and (substr($_GET['dir'],0,1) != '.') and ($_GET['dir'] != '')) {
    $mydir = $root . $_GET['dir']; }
else {
    $mydir = $root;
}

//Get and sort the directory listing
$files = myscan($mydir);
sort($files);

//Compile our breadcrumb trail for the file paths
$breadcrumbs = "<a href='" . $_SERVER['PHP_SELF'] . "?dir='>Root</a>";
$bits = split('/', $_GET['dir']);
for ($x=1; $x<sizeof($bits); $x++) {
    if ($bits[$x] != "..") {
        $sofar = $sofar . "/" . $bits[$x];
        $breadcrumbs = $breadcrumbs . " > <a href='" . $_SERVER['PHP_SELF'] . "?dir=" . $sofar . "'>" . $bits[$x] . "</a>";
    }
}

//Common functions used
function myscan($dir) {
    $arrfiles = array();
    $arrfiles = opendir($dir);
    while (false !== ($filename = readdir($arrfiles))) {
           $files[] = $filename;
    }   

    return $files;
}

?>

<HTML>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
    <title>Directory Listing of Root<?=$sofar;?></title>
    <link rel="stylesheet" type="text/css" href="dlf/styles.css" />
</head>
<body>
    <div id="container">
          <h1>Directory Listing of Root<?=$sofar;?></h1>
          <div id="breadcrumbs"> <? echo $breadcrumbs; ?> </div>
        <div id="listingcontainer">
            <div id="listingheader">
                <div id="headerfile">File</div>
                <div id="headersize">Size</div>
                <div id="headermodified">Last Modified</div>
            </div>
            <div id="listing">
                <?
                    for ($x=0; $x<sizeof($files); $x++) {
                            if (($files[$x] != '.') and ($files[$x] != "..")) {
                            echo "<div>";
                                if(is_dir($mydir . "/" . $files[$x])) {
                                        echo "<a href='" . $_SERVER['PHP_SELF'] . "?dir=" . $sofar . "/" . $files[$x] . "' class='g'><img
src='dlf/folder.png'><strong>" . $files[$x] . "</strong>";
                                }
                                else {
                                $ext = strtolower(substr($files[$x], strrpos($files[$x], '.')+1));
                                if($filetypes[$ext]) {
                                    $icon = $filetypes[$ext];
                                } else {
                                    $icon = 'unknown.png';
                                }
                                if (strlen($files[$x]) > 70) {
                                            echo "<a class='g'><img src='dlf/" . $icon . "'<strong>" . substr($files[$x],0,70) . "...</strong>"; }
                                else {
                                    echo "<a class='g'><img src='dlf/" . $icon . "'<strong>" . $files[$x] . "</strong>";
                                }
                                }
                            echo "<em>" . round(filesize($mydir . "/" . $files[$x])/1024) . " KB</em>";
                            echo date("M d Y h:i:s A", filemtime($mydir . "/" . $files[$x]));
                            echo "</a></div>";
                            }
                    }
                 ?>
            </div>
        </div>
   
    </div>
</body>
</HTML>

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