NEED HELP ON IMAGE THUMNAIL!!!
Posted: Sat Dec 13, 2008 1:00 pm
I work on this for 24 hrs already! just could solve it! Here is the code, it resize an image then upload both big image and thumbnail to server. what I want is make it multiple images upload, it could upload 4 images at once, then save the name into database. this should not be so hard, but I just could fix it.
Code: Select all
<form id="ratioimg" name="ratioimg" enctype="multipart/form-data" method="post" action="ratioimg_upload.php">
<label>
<input type="file" name="file" />
</label>
<p>
<label>
<input type="submit" name="Submit" value="upload" />
</label>
</p>
</form>
Code: Select all
<?
class resizeimage
{
var $type;
var $width;
var $height;
var $resize_width;
var $resize_height;
var $cut;
var $srcimg;
var $dstimg;
var $im;
function resizeimage($img, $wid, $hei,$c)
{
//echo $img.$wid.$hei.$c;
$this->srcimg = $img;
$this->resize_width = $wid;
$this->resize_height = $hei;
$this->cut = $c;
$this->type = substr(strrchr($this->srcimg,"."),1);
$this->initi_img();
$this -> dst_img();
$this->width = imagesx($this->im);
$this->height = imagesy($this->im);
$this->newimg();
ImageDestroy ($this->im);
}
function newimg()
{
$resize_ratio = ($this->resize_width)/($this->resize_height);
$ratio = ($this->width)/($this->height);
if(($this->cut)=="1")
{
if($ratio>=$resize_ratio)
{
$newimg = imagecreatetruecolor($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,$this->dstimg);
echo "thumbnail successful?";
}
if($ratio<$resize_ratio)
{
$newimg = imagecreatetruecolor($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,$this->dstimg);
echo "thumbnail successful?";
}
}
else
{
if($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,$this->dstimg);
echo "thumbnail successful?";
}
if($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,$this->dstimg);
echo "thumbnail successful?";
}
}
}
function initi_img()
{
if($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);
}
}
function dst_img()
{
$full_length = strlen($this->srcimg);
$type_length = strlen($this->type);
$name_length = $full_length-$type_length;
$name = substr($this->srcimg,0,$name_length-1);
$this->dstimg = $name."_small.".$this->type;
$new_small = basename($this->dstimg);
echo $new_small;
}
}
$tempimgname = strtolower($_FILES["file"][name]);
$tempimgname = mb_convert_encoding( $tempimgname, "gb2312", "utf-8");
$tmpfiletype = substr(strrchr($tempimgname,"."),1);
if($tmpfiletype=="jpg" || $tmpfiletype=="gif" || $tmpfiletype=="png")
{
if(copy($_FILES["file"]["tmp_name"],strtolower("image/".date("Y-m-d-h-m-s",time()).$tempimgname)))
{
$image1 = basename(strtolower("image/".date("Y-m-d-h-m-s",time()).$tempimgname));
$class = new resizeimage("image/".date("Y-m-d-h-m-s",time()).$tempimgname, 150, 150, 1);
echo "file".strtolower($_FILES["file"]["name"])."<br>"."size".$_FILES ["file"]["size"]."<br>"."file type is".$_FILES["file"]["type"]."< br>"."success!"."<br>";
echo $image1;
}
else
{
echo "failed"."<br>";
}
}
else
{
echo "only allows jpg,gif,png";
}
?>