[RESOLVED] Completely stumped

[solitario]

Hello all.
I have this script which scales an image. It works fine on my home computer, but when I take it to my system at work, PHP merely displays the URL of the page. The web app and the MySQL database are exact copies of each other. Perhaps someone can tell me what is happening here?
Many many thanks to anyone who can help.

<?php

    /* THE PURPOSE OF THIS FILE IS TO UPLOAD, THEN SCALE AN IMAGE, IF NEEDED */


    /* SECURITY LOCAL TO THIS SCRIPT */
        if(
            isset($GLOBALS['post']['id'])
            &&
            isset($_FILES['txt_file'])
        ) {

            /* THE USER HAS PASSED */


            /* UPLOAD THE IMAGE, IF APPLICABLE */
                if(
                    strlen($_FILES['txt_file']['name'])>0
                ) {
                    /* SPLIT THE POSTED FILE NAME */
                        $split_name=explode(".", $_FILES['txt_file']['name']);


                    /* SET THE FILE EXTENSION */
                        $file_extension='.'.end($split_name);


                    /* NEW FILENAME */
                        $new_file_name=$GLOBALS['post']['id'].'_'.mktime().$file_extension;


                    /* READ THE TEMPORARY FILE */
                        $temp_name = $_FILES['txt_file']['tmp_name'];
                        $temp_file = fopen($temp_name, "r");
                        $binary_data = fread($temp_file, fileSize($temp_name));


                    /* TURN ON ERROR REPORTING */
                        $old_error_reporting = error_reporting(E_ALL & ~(E_WARNING));


                    /* CREATE THE FILE */
                        $file_path = '../_upload/'.$new_file_name;
                            touch($file_path);
                                $fp=fopen($file_path, 'w');
                                    fwrite($fp, $binary_data);
                                fclose($fp);


                    /* TURN OFF ERROR REPORTING */
                        error_reporting($old_error_reporting);


                    /* CHECK THE IMAGE DIMENSIONS */
                        $image=getimagesize($file_path);
                            $old_width=$image[0];
                            $old_height=$image[1];


                    /* NEEDED FOR RESIZING IMAGES */
                        if(
                            $old_width>375 || $old_height>375
                        ) {
                            /* NEED TO DETERMINE WHICH IS GREATER, HEIGHT OR WIDTH */
                                if(
                                    $old_height>$old_width
                                    ||
                                    $old_height==$old_width
                                ) {
                                    $divider=ceil($old_height/375);
                                } else {
                                    $divider=ceil($old_width/375);
                                }
                            /* NOW SET THE $new_height AND $new_width VARIABLES */
                                $new_height=floor($old_height/$divider);
                                $new_width=floor($old_width/$divider);
                        } else {
                            $new_height=$old_height;
                            $new_width=$old_width;
                        }


                    /* INITIALIZE THE SOURCE AND OUTPUT FILE NAMES */
                        $source_file_name='../_upload/'.$new_file_name;
                        $output_file_name='../../_images/_products/'.$new_file_name;
                        $thumbnail_file_name='../../_images/_products_thumbnails/'.$new_file_name;


                    /* THE CONTENT TYPE */
                        if($file_extension=='.jpg') {
                            header('Content-type: image/jpeg');
                        }


                    /* FOUND THE FOLLOWING FIX HERE */
                    /* http://worcesterwideweb.com/2008/03/17/php-5-and-imagecreatefromjpeg-recoverable-error-premature-end-of-jpeg-file/ */
                        ini_set('gd.jpeg_ignore_warning', 1);


                    /* RESAMPLE THE IMAGE */
                        $image_p=imagecreatetruecolor($new_width, $new_height);
                        $image=imagecreatefromjpeg($source_file_name);
                            imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $old_width, $old_height);


                    /* CREATE THE IMAGE */
                        if($file_extension=='.jpg') {
                            imagejpeg($image_p,$output_file_name,100);
                        }


                    /* RESAMPLE THE IMAGE */
                        $image_p2=imagecreatetruecolor(100, 100);
                        $image=imagecreatefromjpeg($source_file_name);
                            imagecopyresampled($image_p2, $image, 0, 0, 0, 0, 100, 100, $old_width, $old_height);


                    /* CREATE THE THUMBNAIL IMAGE */
                        if($file_extension=='.jpg') {
                            imagejpeg($image_p2,$thumbnail_file_name,100);
                        }


                    /* CALL THE CLASS FUNCTION TO BUILD A QUERY TO UPDATE A PRODUCT IMAGE */
                        if($file_extension=='.jpg') {
                            $GLOBALS['cms_queries']->update_product_image($GLOBALS['post']['id'],$new_file_name);
                        }


                    /* SINCE I'VE ALREADY SENT HEADERS I NEED TO REDIRECT MANUALLY */
                        echo '<html>';

                            echo '<head>';

                                echo '<title>REDIRECTING</title>';

                                echo '<meta http-equiv="refresh" content="0;url=../'.$GLOBALS['global_admin_page'].'?a=040&red=041&thank='.mktime().'" />';

                            echo '</head>';

                            echo '<body>';

                            echo '</body>';

                        echo '</html>';


                }

        }

?>

[kows]

the GD extension is installed on the server you're having trouble with, right?

[solitario]

Yes, it is installed.

[penagate]

I don't know exactly why the script doesn't work, but it's so riddled with misconceptions and poor practices that it's hard to know where to begin. Why is $GLOBALS used? Why the error reporting level changed mid-script? Why is the binary data read in and then written out, instead of using move_uploaded_file? Why is echo used to output HTML? Why is HTML used to do a redirection that should be done with a header? Why is HTML emitted after setting a content type of image/jpeg?

To be honest, it's hard to imagine it working at all. Start again.


Edit; Also, there are far too many comments and they are mostly misleading.

[kows]

alright. your script works fine (as messy as it is), but the problem is due to the header you're sending. you are saving all of your image files rather than outputting them to the browser; this means that PHP sees that you're trying to output an image (by sending a header of 'image/jpeg'), but you're not using imagejpeg() to output an image (you're saving it instead). just get rid of the header you're sending.

and get rid of that disgusting HTML you're outputting! PHP is an embedded language, and you should treat it like one. example:

<?php

  //php code

?>
<!-- html -->
<?php

  //more php code

?>
<!-- more html -->

edit: didn't see penagate's post before I made mine, but all of the things he mentioned would definitely make your code much easier to understand. not to mention more efficient and a lot less work [on your part, as far as writing goes].

[Nightwalker83]

@ solitario,

You say that there is a database but there is not mention of it in that code! Does the file get uploaded to the database? If so you need to tell us what field to put in the database.

[kows]

if you looked at his code, he is obviously not putting the image in a database. the query he uses is a call to a class that can simply be removed from this script to run. it merely logs the uploaded file's name.

[solitario]

ouch...
yeah, thanks folks. cleaning it up a bit fixed it.