Devil or Angel’s Blog

mumpung lagi jadi programmer ..

sekarang mo belajar tentang upload file ke server pake script PHP…
lanjutan dari tutorial sebelumnya. Sebelumnya kita tentukan dulu batas
maksimal ukuran file yg mau diupload ke server, caranya buka file
php.ini di C:/php/php.ini

ubah di php.ini bagian:

upload_max_filesize = 2M <<< yg ini dirubah sesuai
keinginan, tapi ingat kapasitas server!… semakin besar maka semakin
lama proses yg dibutuhkan..

trus buka editor, saya sarankan bukan notepad biar belajarnya lebih mudah.. bisa pake ultraedit atau macromedia dreamweaver..
nb: penjelasan script setelah tanda "//"

Upload File
 

<?php
$upload_dir = "images/"; //tempat uploadnya, dibuat dulu

$size_bytes = 5120000; //ini 5MB
$extlimit = "no"; //izinkan ada batasan limit secara manual, selain di php.ini

//ekstensi yg kamu perbolehkan, tambahkan sendiri,
//tapi resikonya ngga ada thumbnail

$limitedext = array(".gif",".jpg",".png",".jpeg");

//cek direktori
if (!is_dir("$upload_dir")) {
die ("Direktori <b>($upload_dir)</b> kagak ada bos!!");
}
//cek writeable
if (!is_writeable("$upload_dir")){
die ("Direktorinya <b>($upload_dir)</b> ngga writeable, CHMOD ke (777)"); }

if($uploadform)
{
//cek bila tidak ada file yg dipilih
if (!is_uploaded_file($_FILES['filetoupload']['tmp_name']))
{
echo "Error: woii… pilih file yg mo diupload!. <br>»<a href=\"$_SERVER[PHP_SELF]\">kembali</a>";
exit();
}
//cek ukuran file
$size = $_FILES['filetoupload']['size'];
//cek apa sesuai dengan batasan file maksimal kita
if ($size > $size_bytes)
{
$kb = $size_bytes / 1024;
echo "Kegedean tong!!. Mesti <b>$kb</b> KB. <br>»<a href=\"$_SERVER[PHP_SELF]\">kembali</a>";
exit();
}
//cek ekstensi file
$ext = strrchr($_FILES['filetoupload'][name],’.');
if (($extlimit == "yes") && (!in_array($ext,$limitedext))) {
echo("Ekstensi tidak diizinkan!!. ");
exit();
}
//memberikan nama pada file
$filename = $_FILES['filetoupload']['name'];
//cek apa nama file udah ada
if(file_exists($upload_dir.$filename)){
echo "woii!! file <b>$filename </b> udah ada, ganti!!.
<br>»<a href=\"$_SERVER[PHP_SELF]\">kembali</a>";
exit();
}
//pindahkan file ke folder yg telah kita sediakan
if (move_uploaded_file($_FILES['filetoupload']['tmp_name'],$upload_dir.$filename)) {
//berikan link ke file
echo "File (<a href=\"$upload_dir$filename\">$filename</a>)
berhasil di upload! <br>»<a
href=\"$_SERVER[PHP_SELF]\">kembali</a>";
exit();
}
//error jika gagal mindahin file
else
{
//pesan error
echo "There was a problem moving your file. <br>»<a href=\"$_SERVER[PHP_SELF]\">back</a>";
exit();
}
}
else
{
?>
<br>
<h3>::Pilih file yg akan di upload:</h3>
<i>- Ekstensi yg diizinkan:</i>
<b>
<?
// tampilkan ekstensi yg diizinkan
for($i=0;$i<count($limitedext);$i++)
{
if (($i<>count($limitedext)-1))$commas=", ";else $commas="";
list($key,$value)=each($limitedext);
echo $value.$commas;
}
?>
</b>
<br>
<i>- Ukuran File Maksimum </i> = <b><? echo $size_bytes / 1024; ?> KB </b>
<br>
<form method="post" enctype="multipart/form-data" action="<?=$PHP_SELF?>">
<br>
<input type="file" name="filetoupload"><br>
<input type="hidden" name="MAX_FILE_SIZE" value="<?=$size_bytes?>">
<br>
<input type="Submit" name="uploadform" value="Upload File">
</form>
<?
}
//bagian ini yg keren, tampilkan thumbnail file.. ^_^
echo "<br><br><hr><br><b>File yg telah di upload:</b><br>";
?>
<table border="1" bordercolor="#C0C0C0" cellspacing="1">
<tr>
<td bgcolor="#F4F4F4">Nama File</td>
<td bgcolor="#F4F4F4">Ukuran File</td>
</tr>
<?
$rep=opendir($upload_dir);
while ($file = readdir($rep)) {
if($file != ‘..’ && $file !=’.’ && $file !=”){
if (!is_dir($file)){
//tampilkan nama file dan linknya
echo "<tr><td> <a href=\"$upload_dir$file\" target=_blank>
<img src=\"$upload_dir$file\" border=0 width=100>
</a>
</td>";
//tampilkan ukuran file
$file_size = filesize($upload_dir."".$file);
if ($file_size >= 1048576)
{
$show_filesize = number_format(($file_size / 1048576),2) . " MB";
}
elseif ($file_size >= 1024)
{
$show_filesize = number_format(($file_size / 1024),2) . " KB";
}
elseif ($file_size >= 0)
{
$show_filesize = $file_size . " bytes";
}
else
{
$show_filesize = "0 bytes";
}
echo "<td> $show_filesize </td></tr>";
}
}
}
closedir($rep);
clearstatcache();

?>
</table>

PCMIIW (Please Correct Me If I’m Wrong)..

untuk lebih jelas silahkan ke:
students.stttelkom.ac.id