How to integrate php thumbnail creator with multiple image uploader script? - php

Question

I have this code to upload multiple image. It is working fine.
<?php
include('db.php');
session_start();
$session_id='1'; //$session id
$path = "uploads/";
function getExtension($str)
{
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
$valid_formats = array("jpg", "png", "gif", "bmp","jpeg");
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST")
{
$name = $_FILES['photoimg']['name'];
$size = $_FILES['photoimg']['size'];
if(strlen($name))
{
$ext = getExtension($name);
if(in_array($ext,$valid_formats))
{
if($size<(1024*1024))
{
$inputFileName = $_FILES['photoimg']['name'];
$actual_image_name = time().substr(str_replace(" ", "_", $ext), 5).".".$ext;
$tmp = $_FILES['photoimg']['tmp_name'];
if(move_uploaded_file($tmp, $path.$actual_image_name))
{
mysql_query("UPDATE users SET profile_image='$actual_image_name' WHERE uid='$session_id'");
echo "<img src='uploads/".$actual_image_name."' class='preview'>";
}
else
echo "Fail upload folder with read access.";
}
else
echo "Image file size max 1 MB";
}
else
echo "Invalid file format..";
}
else
echo "Please select image..!";
exit;
}
?>
But I want to create thumbnail for per image. To do this I have another one. I have found it from a website...but I can't understand how to integrate with my original one.
function thumbnail($inputFileName, $maxSize = 100)
{
$info = getimagesize($inputFileName);
$type = isset($info['type']) ? $info['type'] : $info[2];
// Check support of file type
if ( !(imagetypes() & $type) )
{
// Server does not support file type
return false;
}
$width = isset($info['width']) ? $info['width'] : $info[0];
$height = isset($info['height']) ? $info['height'] : $info[1];
// Calculate aspect ratio
$wRatio = $maxSize / $width;
$hRatio = $maxSize / $height;
// Using imagecreatefromstring will automatically detect the file type
$sourceImage = imagecreatefromstring(file_get_contents($inputFileName));
// Calculate a proportional width and height no larger than the max size.
if ( ($width <= $maxSize) && ($height <= $maxSize) )
{
// Input is smaller than thumbnail, do nothing
return $sourceImage;
}
elseif ( ($wRatio * $height) < $maxSize )
{
// Image is horizontal
$tHeight = ceil($wRatio * $height);
$tWidth = $maxSize;
}
else
{
// Image is vertical
$tWidth = ceil($hRatio * $width);
$tHeight = $maxSize;
}
$thumb = imagecreatetruecolor($tWidth, $tHeight);
if ( $sourceImage === false )
{
// Could not load image
return false;
}
// Copy resampled makes a smooth thumbnail
imagecopyresampled($thumb, $sourceImage, 0, 0, 0, 0, $tWidth, $tHeight, $width, $height);
imagedestroy($sourceImage);
return $thumb;
}
/**
* Save the image to a file. Type is determined from the extension.
* $quality is only used for jpegs.
* Author: mthorn.net
*/
function imageToFile($im, $fileName, $quality = 80)
{
if ( !$im || file_exists($fileName) )
{
return false;
}
$ext = strtolower(substr($fileName, strrpos($fileName, '.')));
switch ( $ext )
{
case '.gif':
imagegif($im, $fileName);
break;
case '.jpg':
case '.jpeg':
imagejpeg($im, $fileName, $quality);
break;
case '.png':
imagepng($im, $fileName);
break;
case '.bmp':
imagewbmp($im, $fileName);
break;
default:
return false;
}
return true;
}
$im = thumbnail('temp.jpg', 100);
imageToFile($im, 'temp-thumbnail.jpg');
Help will be greatly appreciated...

Answer 1

You can use following;
<?php
....
if(move_uploaded_file($tmp, $path.$actual_image_name)) {
// Create thumbnail here
$thumb = thumbnail($path.$actual_image_name, "80"); // image name, and size
imageToFile($thumb, 'path/to/thumb/thumbnail_' . $session_id . '.jpg');
mysql_query("UPDATE users SET profile_image='$actual_image_name' WHERE uid='$session_id'");
echo "<img src='uploads/".$actual_image_name."' class='preview'>";
}
...
?>
Do not forget to add thumbnail and imageToFile to put in your php file

Answer 2

<?php
// thumbnail configuration
$thumb_width = 50;
$thumb_height = 50;
$thumb_method = 'crop';
$thumb_bgColour = null; //array(255,240,240);
$thumb_quality = 70;
// Let script run for as long as it needs to when creating thumbnails.
// Some web hosts won't let you use this function. In that case you'll need
// to comment it out and just refresh the script until it has thumbnailed all the images.
set_time_limit(0);
// include the thumbnail function
require_once dirname(__FILE__) . '/paGdThumbnail.php';
// get the path to the current directory
$path = dirname(__FILE__);
// get the url for the images
$path_info = pathinfo($_SERVER['SCRIPT_NAME']);
$url = $path_info['dirname'];
// create an array to store image names in.
$images = array();
//$dir = new DirectoryIterator($path);
$file_name=$_REQUEST['big_img'];//$_FILES['big_img']['name'];
$file_path=$path.'\\'.$file_name;
/*
Loop through the directory, finding all images that aren't thumbnails.
For each image:
- if it doesn't already have a thumbnail, or the thumbnail is older than the image,
create a thumbnail.
- get info about the image
- add the image to our images array
*/
if( preg_match('#^(.+?)(_t)?\.(jpg|gif|png)#i', $file_name, $matches)){
list( ,$name, $is_a_thumb, $extension) = $matches;
// if its not a thumbnail
if( !$is_a_thumb ){
// does a valid thumbnail exist?
$has_thumb = false;
$thumb_file = $path . '/' . $matches[1] . '_t.jpg';
if( file_exists($thumb_file) && filemtime($thumb_file) > filemtime($file_path) ){
$has_thumb = true;
}
else{
// no thumbnail, so we shall create one!
// create a gd image. reading the contents of the image file into a string, then
// using imagecreatefromstring saves having to check the filetype and which
// imagecreatefrom(jpeg/gif/png) function to use
$image = imagecreatefromstring(file_get_contents($file_path));
if( $image ){
// create the thumbnail
$thumb = paGdThumbnail($image, $thumb_width, $thumb_height, $thumb_method, $thumb_bgColour);
// free the image resource
imagedestroy($image);
if( $thumb ){
// save the thumbnail
if( imagejpeg($thumb, $thumb_file, $thumb_quality) ){
$has_thumb = true;
}
// free the memory used by the thumbnail image
imagedestroy($thumb);
}
}
}
if( $has_thumb ){
$images[$file_name] = $name;
}
}
}
// sort the images array so always in the same order
ksort($images);
// end or processing, now display the gallery
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Thumbnails :</title>
<style type="text/css">
<!--
#thumbs{
position: relative;
}
#thumbs div{
float: left;
width: <?php echo $thumb_width + 30?>px;
height: <?php echo $thumb_height + 30?>px;
text-align: center;
}
#thumbs a:link img, #thumbs a:visited img{
border: 1px solid #acacac;
padding: 5px;
}
#thumbs a:hover img{
border: 1px solid black;
}
-->
</style>
</head>
<body>
<div id="thumbs">
<?php foreach( $images as $imagename => $name ){ ?>
<div>
<img src="<?php echo $url . '/' . $name . '_t.jpg'?>" />
</div>
<?php }?>
</div>
</body>
</html>