png transparantie behouden
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Code (php)
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<?php
error_reporting(0);
$change="";
$abc="";
$afb_size=1000; //de breedte van de grote afbeeldingen
$thumb_size=100; //de grootste waarde van de thumb, hang er van af of de afbeelding breder of hoger is
define ("MAX_SIZE","1000");
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
$errors=0;
if($_SERVER["REQUEST_METHOD"] == "POST")
{
$image =$_FILES["file"]["name"];
$uploadedfile = $_FILES['file']['tmp_name'];
if ($image)
{
$filename = stripslashes($_FILES['file']['name']);
$extension = getExtension($filename);
$extension = strtolower($extension);
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif"))
{
$change='<div class="msgdiv">Unknown Image extension </div> ';
$errors=1;
}
else
{
$size=filesize($_FILES['file']['tmp_name']);
if ($size > MAX_SIZE*1024)
{
$change='<div class="msgdiv">You have exceeded the size limit!</div> ';
$errors=1;
}
if($extension=="jpg" || $extension=="jpeg" )
{
$uploadedfile = $_FILES['file']['tmp_name'];
$src = imagecreatefromjpeg($uploadedfile);
}
else if($extension=="png")
{
$uploadedfile = $_FILES['file']['tmp_name'];
$src = imagecreatefrompng($uploadedfile);
}
else
{
$src = imagecreatefromgif($uploadedfile);
}
echo $scr;
list($width,$height)=getimagesize($uploadedfile);
if ($width > $afb_size){
$afb_size=1000;}else{
$afb_size=$width; }
if ($width > $height){
if ($afb_size > $width){$newwidth= $width;}else{$newwidth= $afb_size;}
$newheight=($height/$width)*$newwidth;
$tmp=imagecreatetruecolor($newwidth,$newheight);
$newwidth1=$thumb_size;
$newheight1=($height/$width)*$newwidth1;
$tmp1=imagecreatetruecolor($newwidth1,$newheight1);
}else{
if ($afb_size > $height){$newheight= $height;}else{$newheight= $afb_size;}
$newwidth=($width/$height)*$newheight;
$tmp=imagecreatetruecolor($newwidth,$newheight);
$newheight1=$thumb_size;
$newwidth1=($width/$height)*$newheight1;
$tmp1=imagecreatetruecolor($newwidth1,$newheight1);
}
imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);
imagecopyresampled($tmp1,$src,0,0,0,0,$newwidth1,$newheight1,$width,$height);
$date = date('Ymd_His_');
$filename = "images/".$date. $_FILES['file']['name'];
$filename1 = "images/".$date. $_FILES['file']['name'];
//voegt '_thumb' toe aan de bestandsnaam van de thumbnail
$filename1 = str_replace(".","_thumb.",$filename1);
imagejpeg($tmp,$filename,100);
imagejpeg($tmp1,$filename1,100);
imagedestroy($src);
imagedestroy($tmp);
imagedestroy($tmp1);
}}
}
//If no errors registred, print the success message
if(isset($_POST['Submit']) && !$errors)
{
// mysql_query("update {$prefix}users set img='$big',img_small='$small' where user_id='$user'");
$change=' <div class="msgdiv">Image Uploaded Successfully!</div>';
}
?>
error_reporting(0);
$change="";
$abc="";
$afb_size=1000; //de breedte van de grote afbeeldingen
$thumb_size=100; //de grootste waarde van de thumb, hang er van af of de afbeelding breder of hoger is
define ("MAX_SIZE","1000");
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
$errors=0;
if($_SERVER["REQUEST_METHOD"] == "POST")
{
$image =$_FILES["file"]["name"];
$uploadedfile = $_FILES['file']['tmp_name'];
if ($image)
{
$filename = stripslashes($_FILES['file']['name']);
$extension = getExtension($filename);
$extension = strtolower($extension);
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif"))
{
$change='<div class="msgdiv">Unknown Image extension </div> ';
$errors=1;
}
else
{
$size=filesize($_FILES['file']['tmp_name']);
if ($size > MAX_SIZE*1024)
{
$change='<div class="msgdiv">You have exceeded the size limit!</div> ';
$errors=1;
}
if($extension=="jpg" || $extension=="jpeg" )
{
$uploadedfile = $_FILES['file']['tmp_name'];
$src = imagecreatefromjpeg($uploadedfile);
}
else if($extension=="png")
{
$uploadedfile = $_FILES['file']['tmp_name'];
$src = imagecreatefrompng($uploadedfile);
}
else
{
$src = imagecreatefromgif($uploadedfile);
}
echo $scr;
list($width,$height)=getimagesize($uploadedfile);
if ($width > $afb_size){
$afb_size=1000;}else{
$afb_size=$width; }
if ($width > $height){
if ($afb_size > $width){$newwidth= $width;}else{$newwidth= $afb_size;}
$newheight=($height/$width)*$newwidth;
$tmp=imagecreatetruecolor($newwidth,$newheight);
$newwidth1=$thumb_size;
$newheight1=($height/$width)*$newwidth1;
$tmp1=imagecreatetruecolor($newwidth1,$newheight1);
}else{
if ($afb_size > $height){$newheight= $height;}else{$newheight= $afb_size;}
$newwidth=($width/$height)*$newheight;
$tmp=imagecreatetruecolor($newwidth,$newheight);
$newheight1=$thumb_size;
$newwidth1=($width/$height)*$newheight1;
$tmp1=imagecreatetruecolor($newwidth1,$newheight1);
}
imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);
imagecopyresampled($tmp1,$src,0,0,0,0,$newwidth1,$newheight1,$width,$height);
$date = date('Ymd_His_');
$filename = "images/".$date. $_FILES['file']['name'];
$filename1 = "images/".$date. $_FILES['file']['name'];
//voegt '_thumb' toe aan de bestandsnaam van de thumbnail
$filename1 = str_replace(".","_thumb.",$filename1);
imagejpeg($tmp,$filename,100);
imagejpeg($tmp1,$filename1,100);
imagedestroy($src);
imagedestroy($tmp);
imagedestroy($tmp1);
}}
}
//If no errors registred, print the success message
if(isset($_POST['Submit']) && !$errors)
{
// mysql_query("update {$prefix}users set img='$big',img_small='$small' where user_id='$user'");
$change=' <div class="msgdiv">Image Uploaded Successfully!</div>';
}
?>
Gewijzigd op 25/03/2012 18:31:30 door Ruben Koops
dit had ik al snel gevonden met google
Ik heb ook een aantal dingen gevonden op google, het probleem is: ik weet niet hoe ik het moet toepassen. Heb het op verschillende plaatsen in mijn script proberen te zetten maar heb het probleem nog steeds niet kunnen oplossen. Zoals ik al vertelde, ben niet zo goed :P