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Help modifying an image upload script?

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SweBeat Newbie

SweBeat

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Posted

Hello,

 

I have some problems with this script, I need to change som stuff but I haven´t been able to solve them. There are 3 main problems.

 

1. Make the big image, the original one, to resize to a width of 800px, and than hight accordingly to what fits with the width. And if the image is 800px or smaller don´t do anything.

 

2. Change so the script dosen´t do a PHP_self. But I instead could have one site where I name the image, and add som other information to it, and also choose which picture to upload. And then click on add to database and the I choose the thumb and also add all the information to the database.

 

My idea to solve number two would be to add all the information to the database on the next site where I choose the thumb and after I have picked a thumb image, I update the database with the thumb name. But I need help to do that.

 

3. My third one is actually how to add the imagename to my database, I think I can solve this one myself but the first two I´m not even close to solving.

 

I would really appreciate some help.

 

Best

Tobias

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SweBeat Newbie

SweBeat

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  • Author
Posted

Oh, sorry, I missed to add it. Been coding for a little to long now probably.  :P

 

<?php
/*
* Copyright (c) 2008 http://www.webmotionuk.com / http://www.webmotionuk.co.uk
* "PHP & Jquery image upload & crop"
* Date: 2008-11-21
* Ver 1.2
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
error_reporting (E_ALL ^ E_NOTICE);
session_start(); //Do not remove this
//only assign a new timestamp if the session variable is empty
if (!isset($_SESSION['random_key']) || strlen($_SESSION['random_key'])==0){
    $_SESSION['random_key'] = strtotime(date('Y-m-d H:i:s')); //assign the timestamp to the session variable
$_SESSION['user_file_ext']= "";
}
#########################################################################################################
# CONSTANTS																								#
# You can alter the options below																		#
#########################################################################################################
$upload_dir = "Images"; 				// The directory for the images to be saved in
$upload_path = "../../Images/Content/".$upload_dir."/";				// The path to where the image will be saved
$large_image_prefix = "resize_"; 			// The prefix name to large image
$thumb_image_prefix = "thumbnail_";			// The prefix name to the thumb image
$large_image_name = $large_image_prefix.$_SESSION['random_key'];     // New name of the large image (append the timestamp to the filename)
$thumb_image_name = $thumb_image_prefix.$_SESSION['random_key'];     // New name of the thumbnail image (append the timestamp to the filename)
$max_file = "25"; 							// Maximum file size in MB
$max_width = "800";							// Max width allowed for the large image
$thumb_width = "210";						// Width of thumbnail image
$thumb_height = "140";						// Height of thumbnail image
// Only one of these image types should be allowed for upload
$allowed_image_types = array('image/pjpeg'=>"jpg",'image/jpeg'=>"jpg",'image/jpg'=>"jpg",'image/png'=>"png",'image/x-png'=>"png",'image/gif'=>"gif");
$allowed_image_ext = array_unique($allowed_image_types); // do not change this
$image_ext = "";	// initialise variable, do not change this.
foreach ($allowed_image_ext as $mime_type => $ext) {
    $image_ext.= strtoupper($ext)." ";
}


##########################################################################################################
# IMAGE FUNCTIONS																						 #
# You do not need to alter these functions																 #
##########################################################################################################
function resizeImage($image,$width,$height,$scale) {
list($imagewidth, $imageheight, $imageType) = getimagesize($image);
$imageType = image_type_to_mime_type($imageType);
$newImageWidth = ceil($width * $scale);
$newImageHeight = ceil($height * $scale);
$newImage = imagecreatetruecolor($newImageWidth,$newImageHeight);
switch($imageType) {
	case "image/gif":
		$source=imagecreatefromgif($image); 
		break;
    case "image/pjpeg":
	case "image/jpeg":
	case "image/jpg":
		$source=imagecreatefromjpeg($image); 
		break;
    case "image/png":
	case "image/x-png":
		$source=imagecreatefrompng($image); 
		break;
  	}
imagecopyresampled($newImage,$source,0,0,0,0,$newImageWidth,$newImageHeight,$width,$height);

switch($imageType) {
	case "image/gif":
  		imagegif($newImage,$image); 
		break;
      	case "image/pjpeg":
	case "image/jpeg":
	case "image/jpg":
  		imagejpeg($newImage,$image,90); 
		break;
	case "image/png":
	case "image/x-png":
		imagepng($newImage,$image);  
		break;
    }

chmod($image, 0777);
return $image;
}
//You do not need to alter these functions
function resizeThumbnailImage($thumb_image_name, $image, $width, $height, $start_width, $start_height, $scale){
list($imagewidth, $imageheight, $imageType) = getimagesize($image);
$imageType = image_type_to_mime_type($imageType);

$newImageWidth = ceil($width * $scale);
$newImageHeight = ceil($height * $scale);
$newImage = imagecreatetruecolor($newImageWidth,$newImageHeight);
switch($imageType) {
	case "image/gif":
		$source=imagecreatefromgif($image); 
		break;
    case "image/pjpeg":
	case "image/jpeg":
	case "image/jpg":
		$source=imagecreatefromjpeg($image); 
		break;
    case "image/png":
	case "image/x-png":
		$source=imagecreatefrompng($image); 
		break;
  	}
imagecopyresampled($newImage,$source,0,0,$start_width,$start_height,$newImageWidth,$newImageHeight,$width,$height);
switch($imageType) {
	case "image/gif":
  		imagegif($newImage,$thumb_image_name); 
		break;
      	case "image/pjpeg":
	case "image/jpeg":
	case "image/jpg":
  		imagejpeg($newImage,$thumb_image_name,90); 
		break;
	case "image/png":
	case "image/x-png":
		imagepng($newImage,$thumb_image_name);  
		break;
    }
chmod($thumb_image_name, 0777);
return $thumb_image_name;
}
//You do not need to alter these functions
function getHeight($image) {
$size = getimagesize($image);
$height = $size[1];
return $height;
}
//You do not need to alter these functions
function getWidth($image) {
$size = getimagesize($image);
$width = $size[0];
return $width;
}

//Image Locations
$large_image_location = $upload_path.$large_image_name.$_SESSION['user_file_ext'];
$thumb_image_location = $upload_path.$thumb_image_name.$_SESSION['user_file_ext'];

//Create the upload directory with the right permissions if it doesn't exist
if(!is_dir($upload_dir)){
mkdir($upload_dir, 0777);
chmod($upload_dir, 0777);
}

//Check to see if any images with the same name already exist
if (file_exists($large_image_location)){
if(file_exists($thumb_image_location)){
	$thumb_photo_exists = "<img src=\"".$upload_path.$thumb_image_name.$_SESSION['user_file_ext']."\" alt=\"Thumbnail Image\"/>";
}else{
	$thumb_photo_exists = "";
}
   	$large_photo_exists = "<img src=\"".$upload_path.$large_image_name.$_SESSION['user_file_ext']."\" alt=\"Large Image\"/>";
} else {
   	$large_photo_exists = "";
$thumb_photo_exists = "";
}

if (isset($_POST["upload"])) { 
//Get the file information
$userfile_name = $_FILES['image']['name'];
$userfile_tmp = $_FILES['image']['tmp_name'];
$userfile_size = $_FILES['image']['size'];
$userfile_type = $_FILES['image']['type'];
$filename = basename($_FILES['image']['name']);
$file_ext = strtolower(substr($filename, strrpos($filename, '.') + 1));

//Only process if the file is a JPG, PNG or GIF and below the allowed limit
if((!empty($_FILES["image"])) && ($_FILES['image']['error'] == 0)) {

	foreach ($allowed_image_types as $mime_type => $ext) {
		//loop through the specified image types and if they match the extension then break out
		//everything is ok so go and check file size
		if($file_ext==$ext && $userfile_type==$mime_type){
			$error = "";
			break;
		}else{
			$error = "Only <strong>".$image_ext."</strong> images accepted for upload<br />";
		}
	}
	//check if the file size is above the allowed limit
	if ($userfile_size > ($max_file*1048576)) {
		$error.= "Images must be under ".$max_file."MB in size";
	}

}else{
	$error= "Select an image for upload";
}
//Everything is ok, so we can upload the image.
if (strlen($error)==0){

	if (isset($_FILES['image']['name'])){
		//this file could now has an unknown file extension (we hope it's one of the ones set above!)
		$large_image_location = $large_image_location.".".$file_ext;
		$thumb_image_location = $thumb_image_location.".".$file_ext;

		//put the file ext in the session so we know what file to look for once its uploaded
		$_SESSION['user_file_ext']=".".$file_ext;

		move_uploaded_file($userfile_tmp, $large_image_location);
		chmod($large_image_location, 0777);

		$width = getWidth($large_image_location);
		$height = getHeight($large_image_location);
		//Scale the image if it is greater than the width set above
		if ($width > $max_width){
			$scale = $max_width/$width;
			$uploaded = resizeImage($large_image_location,$width,$height,$scale);
		}else{
			$scale = 1;
			$uploaded = resizeImage($large_image_location,$width,$height,$scale);
		}
		//Delete the thumbnail file so the user can create a new one
		if (file_exists($thumb_image_location)) {
			unlink($thumb_image_location);
		}
	}
	//Refresh the page to show the new uploaded image
	header("location:".$_SERVER["PHP_SELF"]);
	exit();
}
}

if (isset($_POST["upload_thumbnail"]) && strlen($large_photo_exists)>0) {
//Get the new coordinates to crop the image.
$x1 = $_POST["x1"];
$y1 = $_POST["y1"];
$x2 = $_POST["x2"];
$y2 = $_POST["y2"];
$w = $_POST["w"];
$h = $_POST["h"];
//Scale the image to the thumb_width set above
$scale = $thumb_width/$w;
$cropped = resizeThumbnailImage($thumb_image_location, $large_image_location,$w,$h,$x1,$y1,$scale);
//Reload the page again to view the thumbnail
header("location:".$_SERVER["PHP_SELF"]);
exit();
}


if ($_GET['a']=="delete" && strlen($_GET['t'])>0){
//get the file locations 
$large_image_location = $upload_path.$large_image_prefix.$_GET['t'];
$thumb_image_location = $upload_path.$thumb_image_prefix.$_GET['t'];
if (file_exists($large_image_location)) {
	unlink($large_image_location);
}
if (file_exists($thumb_image_location)) {
	unlink($thumb_image_location);
}
header("location:".$_SERVER["PHP_SELF"]);
exit(); 
}
?>


<!-- *********** 

HERE COMES THE BEGINNING OF THE HTML

*********** -->


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta name="generator" content="WebMotionUK" />
<title>WebMotionUK - PHP & Jquery image upload & crop</title>
<script type="text/javascript" src="js/jquery-pack.js"></script>
<script type="text/javascript" src="js/jquery.imgareaselect.min.js"></script>
</head>
<body>
<!-- 
* Copyright (c) 2008 http://www.webmotionuk.com / http://www.webmotionuk.co.uk
* Date: 2008-11-21
* "PHP & Jquery image upload & crop"
* Ver 1.2
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
-->
<?php
//Only display the javacript if an image has been uploaded
if(strlen($large_photo_exists)>0){
$current_large_image_width = getWidth($large_image_location);
$current_large_image_height = getHeight($large_image_location);?>
<script type="text/javascript">
function preview(img, selection) { 
var scaleX = <?php echo $thumb_width;?> / selection.width; 
var scaleY = <?php echo $thumb_height;?> / selection.height; 

$('#thumbnail + div > img').css({ 
	width: Math.round(scaleX * <?php echo $current_large_image_width;?>) + 'px', 
	height: Math.round(scaleY * <?php echo $current_large_image_height;?>) + 'px',
	marginLeft: '-' + Math.round(scaleX * selection.x1) + 'px', 
	marginTop: '-' + Math.round(scaleY * selection.y1) + 'px' 
});
$('#x1').val(selection.x1);
$('#y1').val(selection.y1);
$('#x2').val(selection.x2);
$('#y2').val(selection.y2);
$('#w').val(selection.width);
$('#h').val(selection.height);
} 

$(document).ready(function () { 
$('#save_thumb').click(function() {
	var x1 = $('#x1').val();
	var y1 = $('#y1').val();
	var x2 = $('#x2').val();
	var y2 = $('#y2').val();
	var w = $('#w').val();
	var h = $('#h').val();
	if(x1=="" || y1=="" || x2=="" || y2=="" || w=="" || h==""){
		alert("You must make a selection first");
		return false;
	}else{
		return true;
	}
});
}); 

$(window).load(function () { 
$('#thumbnail').imgAreaSelect({ aspectRatio: '1:<?php echo $thumb_height/$thumb_width;?>', onSelectChange: preview }); 
});

</script>
<?php }?>
<h1>Photo Upload and Crop</h1>
<?php
//Display error message if there are any
if(strlen($error)>0){
echo "<ul><li><strong>Error!</strong></li><li>".$error."</li></ul>";
}
if(strlen($large_photo_exists)>0 && strlen($thumb_photo_exists)>0){
echo $large_photo_exists." ".$thumb_photo_exists;
echo "<p><a href=\"".$_SERVER["PHP_SELF"]."?a=delete&t=".$_SESSION['random_key'].$_SESSION['user_file_ext']."\">Delete images</a></p>";
echo "<p><a href=\"".$_SERVER["PHP_SELF"]."\">Upload another</a></p>";
//Clear the time stamp session and user file extension
$_SESSION['random_key']= "";
$_SESSION['user_file_ext']= "";
}else{
	if(strlen($large_photo_exists)>0){?>
	<h2>Create Thumbnail</h2>
	<div align="center">
		<img src="<?php echo $upload_path.$large_image_name.$_SESSION['user_file_ext'];?>" style="float: left; margin-right: 10px;" id="thumbnail" alt="Create Thumbnail" />
		<div style="border:1px #e5e5e5 solid; float:left; position:relative; overflow:hidden; width:<?php echo $thumb_width;?>px; height:<?php echo $thumb_height;?>px;">
			<img src="<?php echo $upload_path.$large_image_name.$_SESSION['user_file_ext'];?>" style="position: relative;" alt="Thumbnail Preview" />
		</div>
		<br style="clear:both;"/>
		<form name="thumbnail" action="<?php echo $_SERVER["PHP_SELF"];?>" method="post">
			<input type="hidden" name="x1" value="" id="x1" />
			<input type="hidden" name="y1" value="" id="y1" />
			<input type="hidden" name="x2" value="" id="x2" />
			<input type="hidden" name="y2" value="" id="y2" />
			<input type="hidden" name="w" value="" id="w" />
			<input type="hidden" name="h" value="" id="h" />
			<input type="submit" name="upload_thumbnail" value="Save Thumbnail" id="save_thumb" />
		</form>
	</div>
<hr />
<?php 	} ?>
<h2>Upload Photo</h2>
<form name="photo" enctype="multipart/form-data" action="<?php echo $_SERVER["PHP_SELF"];?>" method="post">
Photo <input type="file" name="image" size="30" /> <input type="submit" name="upload" value="Upload" />
</form>
<?php } ?>
<!-- Copyright (c) 2008 http://www.webmotionuk.com -->
</body>
</html>

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