PHP Create thumbnail image

<?php
/**
* Image thumbnail Processing class
*/
Class Resizeimage
{
Type of picture
var $type;
Actual width
var $width;
Actual height
var $height;
The width after the change
var $resize _width;
The height after the change
var $resize _height;
Whether or not to cut the map
var $cut;
Source image
var $srcimg;
Destination image Address
var $dstimg;
Temporarily created images
var $im;

function Resizeimage ($img, $wid, $hei, $c, $dstpath)
{
$this->srcimg = $img;
$this->resize_width = $wid;
$this->resize_height = $hei;
$this->cut = $c;
Type of picture
$this->type = Strtolower (substr (STRRCHR ($this->srcimg, "."), 1);
Initializing an image
$this->initi_img ();
Destination image Address
$this-Dst_img ($dstpath);
//--
$this->width = imagesx ($this->im);
$this->height = Imagesy ($this->im);
Creating images
$this->newimg ();
Imagedestroy ($this->im);
}
function newimg ()
{
The proportions of the altered image
$resize _ratio = ($this->resize_width)/($this->resize_height);
Ratio of actual images
$ratio = ($this->width)/($this->height);
if (($this->cut) = = "1")
Crop chart
{
if ($ratio >= $resize _ratio)
High priority
{
$newimg = Imagecreatetruecolor ($this->resize_width, $this->resize_height);
Imagecopyresampled ($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, (($this Height) * $resize _ratio), $this->height);
Imagejpeg ($newimg, $this->dstimg);
}
if ($ratio < $resize _ratio)
Width first
{
$newimg = Imagecreatetruecolor ($this->resize_width, $this->resize_height);
Imagecopyresampled ($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, $this->width , (($this->width)/$resize _ratio));
Imagejpeg ($newimg, $this->dstimg);
}
}
Else
Do not cut the map
{
if ($ratio >= $resize _ratio)
{
$newimg = Imagecreatetruecolor ($this->resize_width, ($this->resize_width)/$ratio);
Imagecopyresampled ($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, ($this->resize_width)/$ratio, $this- >width, $this->height);
Imagejpeg ($newimg, $this->dstimg);
}
if ($ratio < $resize _ratio)
{
$newimg = Imagecreatetruecolor (($this->resize_height) * $ratio, $this->resize_height);
Imagecopyresampled ($newimg, $this->im, 0, 0, 0, 0, ($this->resize_height) * $ratio, $this->resize_height, $ This->width, $this->height);
Imagejpeg ($newimg, $this->dstimg);
}
}
}
Initializing an image
function initi_img ()
{
if ($this->type== "jpg")
{
$this->im = imagecreatefromjpeg ($this->srcimg);
}
if ($this->type== "gif")
{
$this->im = imagecreatefromgif ($this->srcimg);
}
if ($this->type== "PNG")
{
$this->im = imagecreatefrompng ($this->srcimg);
}
}
Image Destination Address
function Dst_img ($dstpath)
{
$full _length = strlen ($this->srcimg);

$type _length = strlen ($this->type);
$name _length = $full _length-$type _length;


$name = substr ($this->srcimg,0, $name _length-1);
$this->dstimg = $dstpath;


Echo $this->dstimg;
}
}
$resizeimage = new Resizeimage ("Test.jpg", "Max", "Max", "0", "testsmall.jpg");
?>

PHP Create thumbnail image