bueno, aqui te va un pequeño script, ojala te funcione, cualquier cosa estamos aqui:
Código PHP:
if (isset($_POST['upForm'])){
$file_type = $_FILES['imgfile']['type'];
$file_name = $_FILES['imgfile']['name'];
$file_size = $_FILES['imgfile']['size'];
$file_tmp = $_FILES['imgfile']['tmp_name'];
//check if you have selected a file.
if(!is_uploaded_file($file_tmp)){
echo "Error: Please select a file to upload!. <br>--<a href=\"$_SERVER[PHP_SELF]\">back</a>";
exit(); //exit the script and don't do anything else.
}
//check file extension
$ext = strrchr($file_name,'.');
$ext = strtolower($ext);
if (($extlimit == "yes") && (!in_array($ext,$limitedext))) {
echo "Wrong file extension. <br>--<a href=\"$_SERVER[PHP_SELF]\">back</a>";
exit();
}
//get the file extension.
$getExt = explode ('.', $file_name);
$file_ext = $getExt[count($getExt)-1];
//create a random file name
$rand_name = md5(time());
$rand_name= rand(0,999999999);
//get the new width variable.
$ThumbWidth = $img_thumb_width;
//keep image type
if($file_size){
if($file_type == "image/pjpeg" || $file_type == "image/jpeg"){
$new_img = imagecreatefromjpeg($file_tmp);
}elseif($file_type == "image/x-png" || $file_type == "image/png"){
$new_img = imagecreatefrompng($file_tmp);
}elseif($file_type == "image/gif"){
$new_img = imagecreatefromgif($file_tmp);
}
//list width and height and keep height ratio.
list($width, $height) = getimagesize($file_tmp);
$imgratio=$width/$height;
if ($imgratio>1){
$newwidth = $ThumbWidth;
$newheight = $ThumbWidth/$imgratio;
}else{
$newheight = $ThumbWidth;
$newwidth = $ThumbWidth*$imgratio;
}
//function for resize image.
if (function_exists(imagecreatetruecolor)){
$resized_img = imagecreatetruecolor($newwidth,$newheight);
}else{
die("Error: Please make sure you have GD library ver 2+");
}
imagecopyresized($resized_img, $new_img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
//save image
ImageJpeg ($resized_img,"$path_thumbs/$rand_name.$file_ext");
ImageDestroy ($resized_img);
ImageDestroy ($new_img);
//print message
echo "<br>Image Thumb: <a href=\"$path_thumbs/$rand_name.$file_ext\">$path_thumbs/$rand_name.$file_ext</a>";
}
}else{
//aqui debes imprimir el formulario
}