[SOLVED] a minor change to this script

salvador2001 · May 15, 2009

Hi,

I am still a newbie at PHP and i am stuck. I found this script on the internet wich works fine but there is one thing i would change, but cant get it done.

The problem with this upload and resize script is that i dont want the client to be able to edit the resize values. I would like to set it to 400 x 300.

Can this be done ? i would be thankfull if someone can help me out here.

<?php ini_set("memory_limit", "200000000"); // for large images so that we do not get "Allowed memory exhausted"?>
<?php
// 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: submit.php?upload_message=image uploaded&upload_message_type=success&show_image=".$_FILES["image_upload_box"]["name"]);
	exit;
}
else{
	header("Location: submit.php?upload_message=make sure the file is jpg, gif or png and that is smaller than 4MB&upload_message_type=error");
	exit;
}
}
?>

<!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>Image Upload with resize</title>
<style type="text/css">
<!--
body,td,th {
font-family: Arial, Helvetica, sans-serif;
color: #333333;
font-size: 12px;
}

.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">Submit 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="submit.php" 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="400" size="4">
      x      
      
      <input name="max_height_box" type="text" id="max_height_box" value="300" size="4">
      px.
      <br />

      

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




<?php if(isset($_REQUEST['show_image']) and $_REQUEST['xshow_image']!=''){?>
<p>
<img src="uploads/<?php echo $_REQUEST['xshow_image'];?>" />
</p>
<?php }?>

Greetings, Jack

Ken2k7 · May 15, 2009

Change

      // 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'];
      }

To

      // some settings
      $max_upload_width = 400;
      $max_upload_height = 300;

salvador2001 · May 16, 2009

Ahh thanks !!

I replaced it and deleted the form field wich handles the question wich size it should be and it works perfect.

I had changed the form field and didnt saw the declaration above it, stupid...

Greetings, Jack

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[SOLVED] a minor change to this script

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