$ratio2) {
$thumb_w=$new_w;
$thumb_h=$old_y/$ratio1;
}
else {
$thumb_h=$new_h;
$thumb_w=$old_x/$ratio2;
}
// we create a new image with the new dimmensions
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);
// resize the big image to the new created one
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);
// output the created image to the file. Now we will have the thumbnail into the file named by $filename
if(!strcmp("png",$ext))
imagepng($dst_img,$filename);
else
imagejpeg($dst_img,$filename);
//destroys source and destination images.
imagedestroy($dst_img);
imagedestroy($src_img);
}
// This function reads the extension of the file.
// It is used to determine if the file is an image by checking the extension.
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
function is_valid_email($email) {
$result = TRUE;
if(!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$", $email)) {
$result = FALSE;
}
return $result;
}
function destroy($dir) {
$mydir = opendir($dir);
while(false !== ($file = readdir($mydir))) {
if($file != "." && $file != "..") {
chmod($dir.$file, 0777);
if(is_dir($dir.$file)) {
chdir('.');
destroy($dir.$file.'/');
rmdir($dir.$file) or DIE("couldn't delete $dir$file
");
}
else
unlink($dir.$file) or DIE("couldn't delete $dir$file
");
}
}
closedir($mydir);
}
?>
Arthur John Charles
