Create thumbnail of image while uploading
<?php
include("Imaging.php");
// Begin
$img = new Imaging;
$img->set_img($source_path);
$img->set_quality(80);
// Small thumbnail
$img->set_size(200);
$img->save_img($destination_path);
// Finalize
$img->clear_cache();
?>
<?php
class Imaging
{
// Variables
private $img_input;
private $img_output;
private $img_src;
private $format;
private $quality = 80;
private $x_input;
private $y_input;
private $x_output;
private $y_output;
private $resize;
// Set image
public function set_img($img)
{
// Find format
$ext = strtoupper(pathinfo($img, PATHINFO_EXTENSION));
// JPEG image
if(is_file($img) && ($ext == "JPG" OR $ext == "JPEG"))
{
$this->format = $ext;
$this->img_input = ImageCreateFromJPEG($img);
$this->img_src = $img;
}
// PNG image
elseif(is_file($img) && $ext == "PNG")
{
$this->format = $ext;
$this->img_input = ImageCreateFromPNG($img);
$this->img_src = $img;
}
// GIF image
elseif(is_file($img) && $ext == "GIF")
{
$this->format = $ext;
$this->img_input = ImageCreateFromGIF($img);
$this->img_src = $img;
}
// Get dimensions
$this->x_input = imagesx($this->img_input);
$this->y_input = imagesy($this->img_input);
}
// Set maximum image size (pixels)
public function set_size($size = 100)
{
// Resize
if($this->x_input > $size && $this->y_input > $size)
{
// Wide
if($this->x_input >= $this->y_input)
{
$this->x_output = $size;
$this->y_output = ($this->x_output / $this->x_input) * $this->y_input;
}
// Tall
else
{
$this->y_output = $size;
$this->x_output = ($this->y_output / $this->y_input) * $this->x_input;
}
// Ready
$this->resize = TRUE;
}
// Don't resize
else { $this->resize = FALSE; }
}
// Set image quality (JPEG only)
public function set_quality($quality)
{
if(is_int($quality))
{
$this->quality = $quality;
}
}
// Save image
public function save_img($path)
{
// Resize
if($this->resize)
{
$this->img_output = ImageCreateTrueColor($this->x_output, $this->y_output);
ImageCopyResampled($this->img_output, $this->img_input, 0, 0, 0, 0, $this->x_output, $this->y_output, $this->x_input, $this->y_input);
}
// Save JPEG
if($this->format == "JPG" OR $this->format == "JPEG")
{
if($this->resize) { imageJPEG($this->img_output, $path, $this->quality); }
else { copy($this->img_src, $path); }
}
// Save PNG
elseif($this->format == "PNG")
{
if($this->resize) { imagePNG($this->img_output, $path); }
else { copy($this->img_src, $path); }
}
// Save GIF
elseif($this->format == "GIF")
{
if($this->resize) { imageGIF($this->img_output, $path); }
else { copy($this->img_src, $path); }
}
}
// Get width
public function get_width()
{
return $this->x_input;
}
// Get height
public function get_height()
{
return $this->y_input;
}
// Clear image cache
public function clear_cache()
{
@ImageDestroy($this->img_input);
@ImageDestroy($this->img_output);
}
}
?>