Image Upload With Resize

Image Upload With Resize

Create following directory structure

ImageResize (foldername)

ImageUploadWithResize.php

delete_all_images.php

uploads (foldername add 777 permission to this folder)

ImageUploadWithResize.php

<?php

//Define Memory Limit for large images so that we do not get "Allowed memory exhausted"

ini_set("memory_limit", "200000000");

// upload the file

if ((isset($_POST["submitted_form"])) && ($_POST["submitted_form"] == "image_upload_form")) {

            // file needs to be jpg,gif,bmp,x-png and 4 MB max

            if (($_FILES["image_upload_box"]["type"] == "image/jpeg" || $_FILES["image_upload_box"]["type"] == "image/pjpeg" || $_FILES["image_upload_box"]["type"] == "image/gif" || $_FILES["image_upload_box"]["type"] == "image/x-png") && ($_FILES["image_upload_box"]["size"] < 4000000))

            {

                        // some settings

                        $max_upload_width = 2592; $max_upload_height = 1944;

                        // if user chosed properly then scale down the image according to user preferances

                        if(isset($_REQUEST['max_width_box']) and $_REQUEST['max_width_box']!='' and $_REQUEST['max_width_box']<=$max_upload_width){

                                    $max_upload_width = $_REQUEST['max_width_box'];

                        }   

                        if(isset($_REQUEST['max_height_box']) and $_REQUEST['max_height_box']!='' and $_REQUEST['max_height_box']<=$max_upload_height){

                                    $max_upload_height = $_REQUEST['max_height_box'];

                        }         

                        // if uploaded image was JPG/JPEG

            if($_FILES["image_upload_box"]["type"] == "image/jpeg" || $_FILES["image_upload_box"]["type"] == "image/pjpeg")

{         

                                    $image_source = imagecreatefromjpeg($_FILES["image_upload_box"]["tmp_name"]);

                        }                     

                        // if uploaded image was GIF

                        if($_FILES["image_upload_box"]["type"] == "image/gif"){

                                    $image_source = imagecreatefromgif($_FILES["image_upload_box"]["tmp_name"]);

                        }         

                        // BMP doesn't seem to be supported so remove it form above image type test (reject bmps)           

                        // if uploaded image was BMP

                        if($_FILES["image_upload_box"]["type"] == "image/bmp"){          

                                    $image_source = imagecreatefromwbmp($_FILES["image_upload_box"]["tmp_name"]);

                        }                                 

                        // if uploaded image was PNG

                        if($_FILES["image_upload_box"]["type"] == "image/x-png"){

                                    $image_source = imagecreatefrompng($_FILES["image_upload_box"]["tmp_name"]);

                        }

                       

                       

                        $remote_file = "uploads/".$_FILES["image_upload_box"]["name"];

                        imagejpeg($image_source,$remote_file,100);

                        chmod($remote_file,0644);

                       

                        // get width and height of original image

                        list($image_width, $image_height) = getimagesize($remote_file);

           

                        if($image_width>$max_upload_width || $image_height >$max_upload_height){

                                    $proportions = $image_width/$image_height;

                                   

                                    if($image_width>$image_height){

                                                $new_width = $max_upload_width;

                                                $new_height = round($max_upload_width/$proportions);

                                    }                     

                                    else{

                                                $new_height = $max_upload_height;

                                                $new_width = round($max_upload_height*$proportions);

                                    }                     

                                   

                                   

                                    $new_image = imagecreatetruecolor($new_width , $new_height);

                                    $image_source = imagecreatefromjpeg($remote_file);

                                   

                                    imagecopyresampled($new_image, $image_source, 0, 0, 0, 0, $new_width, $new_height, $image_width, $image_height);

                                    imagejpeg($new_image,$remote_file,100);

                                   

                                    imagedestroy($new_image);

                        }

                       

                        imagedestroy($image_source);

                       

                       

                        header("Location: ImageUploadWithResize.php?upload_message=image uploaded&upload_message_type=success&show_image=".$_FILES["image_upload_box"]["name"]);

                        exit;

            }

            else{

                        header("Location: ImageUploadWithResize.php?upload_message=make sure the file is jpg, gif or png and that is smaller than 4MB&upload_message_type=error");

                        exit;

            }

}

?>

<html>

<head><title>Image Upload with resize</title>

<style type="text/css">

<!--

.upload_message_success {padding:4px;background-color:#009900;border:1px solid #006600;color:#FFFFFF;margin-top:10px;margin-bottom:10px;}

.upload_message_error {padding:4px;background-color:#CE0000;border:1px solid #990000;color:#FFFFFF;margin-top:10px;margin-bottom:10px;}

-->

</style></head>

<body>

<h1 style="margin-bottom: 0px">Upload an image</h1>

<?php if(isset($_REQUEST['upload_message'])){?>

            <div class="upload_message_<?php echo $_REQUEST['upload_message_type'];?>">

                        <?php echo htmlentities($_REQUEST['upload_message']);?>

            </div>

<?php }?>

<form action="#" method="post" enctype="multipart/form-data" name="image_upload_form" id="image_upload_form" style="margin-bottom:0px;">

            <label>Image file, maximum 4MB. it can be jpg, gif,  png:</label><br />

    <input name="image_upload_box" type="file" id="image_upload_box" size="40" />

    <input type="submit" name="submit" value="Upload image" /><br /><br />

            <label>Scale down image? (2592 x 1944 px max):</label><br />

            <input name="max_width_box" type="text" id="max_width_box" value="1024" size="4"> x

            <input name="max_height_box" type="text" id="max_height_box" value="768" size="4"> px.

    <br /><br />

            <p style="padding:5px; border:1px solid #EBEBEB; background-color:#FAFAFA;">

                        <strong>Notes:</strong><br />

                        The image will not be resized to this exact size; it will be scalled down so that neider width or height is larger than specified.<br />

                        After you uploaded images and made tests on our server please <a href="delete_all_images.php">delete all uploaded images </a> :)<br />

            </p>

            <input name="submitted_form" type="hidden" id="submitted_form" value="image_upload_form" />

</form>

<?php if(isset($_REQUEST['show_image']) and $_REQUEST['show_image']!=''){?>

<p><img src="uploads/<?php echo $_REQUEST['show_image'];?>" /></p>

<?php }?>

</body>

</html>

delete_all_images.php

            <!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=utf-8" />

<title>Delete all images</title>

</head>

<body>

<?

   $dir = 'uploads/';

   // open specified directory

   $dirHandle = opendir($dir);

   $total_deleted_images = 0;

   while ($file = readdir($dirHandle)) {

      // if not a subdirectory and if filename contains the string '.jpg'

      if(!is_dir($file)) {

         // update count and string of files to be returned

                         unlink($dir.$file);

         echo 'Deleted file <b>'.$file.'</b><br />';

                         $total_deleted_images++;

      }

   }

   closedir($dirHandle);

            if($total_deleted_images=='0'){

                        echo 'There ware no files uploaded there.';

            }

            echo '<br />Thank you.';

            echo '<br /><a href="ImageUploadWithResize.php" title="Upload Image"> Upload New Image </a>';

?>

</body>

</html>