Du lærer jo desværre ikke noget af det, men prøv følgende kode:
<?php
//http://www.eksperten.dk/spm/927549
//SETTINGS
$uploadDir = 'upload/'; //Bibliotek, hvor filer uploades til - husk chmod 777
$allowedFileTypes = array('jpg','gif','png'); //Hvilke filer vil vi acceptere bliver uploadet?
//THUMBS SETTINGS
$thumbDir = 'thumbs/'; //Bibliotek, hvor thumbs gemmes - husk chmod 777
$thumbPrefix = 'thumb_'; //Hvad skal tilføjes til originalt filnavn?
$thumbHeight = 200; //Thumb højde
$thumbWidth = 200; //Thumb bredde
$thumbQuality = 85; //Kvalitet af thumb, kan være fra 0 - dårligt til 100 - bedst
//RESIZED SETTINGS
$resizeDir = 'resize/'; //Bibliotek, hvor thumbs gemmes - husk chmod 777
$resizePrefix = 'resize_'; //Hvad skal tilføjes til originalt filnavn?
$resizeHeight = 600; //Thumb højde
$resizeWidth = 500; //Thumb bredde
$resizeQuality = 85; //Kvalitet af thumb, kan være fra 0 - dårligt til 100 - bedst
//Funktioner som bruges:
function getExtension($filename){
return strtolower( pathinfo( $filename, PATHINFO_EXTENSION ) );
}
function resize( $filename, $newfilename, $maxw, $maxh, $quality=85 ){
$extension = getExtension($filename);
switch($extension){
case 'jpeg':
case 'jpe':
case 'jpg':
$srcim = imagecreatefromjpeg( $filename );
break;
case 'gif':
$srcim = imagecreatefromgif( $filename );
break;
case 'png':
$srcim = imagecreatefrompng( $filename );
break;
default:
return false;
}
$ow = imagesx( $srcim );
$oh = imagesy( $srcim );
$wscale = $maxw / $ow;
$hscale = $maxh / $oh;
$scale = min( $hscale, $wscale );
$nw = round( $ow * $scale, 0 );
$nh = round( $oh * $scale, 0 );
$dstim = imagecreatetruecolor( $nw, $nh );
imagecopyresampled( $dstim, $srcim, 0, 0, 0, 0, $nw, $nh, $ow, $oh );
switch($extension){
case 'jpeg':
case 'jpe':
case 'jpg':
imagejpeg( $dstim, $newfilename, $quality );
break;
case 'gif':
imagegif( $dstim, $newfilename );
break;
case 'png':
$png_q = floor( abs( $quality / 10 - 9.9 ) );
imagepng( $dstim, $newfilename, $png_q );
break;
default:
return false;
}
imagedestroy( $dstim );
imagedestroy( $srcim );
return file_exists($newfilename);
}
//Er der trykket på Upload file knappen?
if(isset($_POST['myUpload'])){
//Har vi en fil?
if(is_uploaded_file($_FILES['myFile']['tmp_name'])){
//Filendelse
$extension = getExtension($_FILES['myFile']['name']);
$new_filename = sha1(uniqid());
//Er filen en af de filer vi gerne vil have?
if(in_array($extension,$allowedFileTypes)){
//Vi flytter filen fra tmp til vores UPLOADDIR
if(move_uploaded_file($_FILES['myFile']['tmp_name'],$uploadDir . $new_filename . '.' . $extension)){
if(
resize($uploadDir . $new_filename . '.' . $extension, $thumbDir . $thumbPrefix . $new_filename . '.' . $extension, $thumbWidth, $thumbHeight, $thumbQuality)
&&
resize($uploadDir . $new_filename . '.' . $extension, $resizeDir . $resizePrefix . $new_filename . '.' . $extension, $resizeWidth, $resizeHeight, $resizeQuality)
){
echo '<h3 style="color:green;">File ('.$new_filename . '.' . $extension.') uploaded, resized and thumbed succesfully</h3>';
}else{
echo '<h3 style="color:red;">File ('.$new_filename . '.' . $extension.') uploaded succesfully, but resize and thumb failed</h3>';
}
}else{
echo '<h3 style="color:red;">Error - unable to upload file: '.basename($_FILES['myFile']['name']).'</h3>';
}
}else{
echo '<h3 style="color:red;">Wrong filetype, allowed filetypes are: ('.implode(',',$allowedFileTypes).')</h3>';
}
}else{
echo '<h3 style="color:red;">No file selected<h3>';
}
}
?>
<form action="" method="post" enctype="multipart/form-data">
<div>File (<?=implode(',',$allowedFileTypes)?>): <input type="file" name="myFile"></div>
<div><input type="submit" name="myUpload" value="Upload file"></div>
Ny bruger
Nybegynder
Opret
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