Introduction
In this article I explain conversion of a simple image to a thumbnail image in PHP. I will use some PHP code for converting a simple image to a thumbnail image. First of all create two folders in the www directory. One folder for the input image and the other folder for the thumbnail image. I use the $Imagepath variable for storing the image and the next variable, $thumbpath, is for storing the converted thumbnail image.
Example
<?php
$new_width = 150;
$Imagepath = "./Imagefiles";
$Thumbpath = "./Thumbfiles";
$filepath = "./Imagefiles";
$dir = dir($filepath);
while($entry=$dir->read())
{
if($entry == "." || $entry == "..")
{
continue;
}
$fp = @fopen("$filepath/$entry","r");
$photo_filename = "$entry";
$image_stats = GetImageSize($Imagepath."/".$entry);
$imagewidth = $image_stats[0];
$imageheight = $image_stats[1];
$img_type = $image_stats[2];
$ratio = ($imagewidth / $new_width);
$new_height = round($imageheight / $ratio);
if (!file_exists($Thumbpath."/".$entry))
{
if ($img_type=="2")
{
$src_img = imagecreatefromjpeg($Imagepath."/".$entry);
$dst_img = imagecreate($new_width,$new_height);
imagecopyresized($dst_img,$src_img,0,0,0,0,$new_width,$new_height,imagesx($src_img),imagesy($src_img));
imagejpeg($dst_img, "$Thumbpath"."/$entry");
}
elseif ($img_type=="3")
{
$dst_img=ImageCreate($new_width,$new_height);
$src_img=ImageCreateFrompng($Imagepath."/".$entry);
ImageCopyResized($dst_img,$src_img,0,0,0,0,$new_width,$new_height,ImageSX($src_img),ImageSY($src_img));
Imagepng($dst_img, "$Thumbpath"."/$entry");
}
elseif ($img_type=="1")
{
$cfg_thumb_url=$cfg_fullsizepics_url;
}
}
echo "$entry";
echo "";
}
?>
"Imagefiles" is a folder for storing the input image file. Such as:
"Thumbfiles" is a folder for storing the thumbnail image files. Such as:
Output
The following shows the input image name:
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