note 88959 added to features.file-upload

// this is a simple and complete function and the easyest way i have found to allow you to add an image to a form that the user can verify before submiting // if the user do not want this image and change his mind he can reupload a new image and we will delete the last // i have added the debug if !move_uploaded_file so you can verify the result with your directory and you can use this function to destroy the last upload without uploading again if you want too, just add a value... function upload_back() { global $globals; // 1rst set the images dir and declare a files array we will have to loop the images directory to write a new name for our picture $uploaddir = 'images_dir/'; $dir = opendir($uploaddir); $files = array(); // if we are on a form who allow to reedit the posted vars we can save the image previously uploaded if the previous upload was successfull. so declare that value into a global var, we will rewrite that value in a hidden input later to post it again if we do not need to rewrite the image after the new upload and just... save the value... if(!empty($_POST['attachement_loos'])) { $globals['attachement'] = $_POST['attachement_loos']; } // now verify if the file exists, just verify if the 1rst array is not empty. else you can do what you want, that form allows to use a multipart form, for exemple for a topic on a forum, and then to post an attachement with all our other values if(isset($_FILES['attachement']) && !empty($_FILES['attachement']['name'])) { // now verify the mime, i did not find something more easy than verify the 'image/' ty^pe. if wrong tell it! if(!eregi('image/', $_FILES['attachement']['type'])) { echo 'The uploaded file is not an image please upload a valide file!'; } else { // else we must loop our upload folder to find the last entry the count will tell us and will be used to declare the new name of the new image. we do not want to rewrite a previously uploaded image while($file = readdir($dir)) { array_push($files,"$file"); echo $file; } closedir($dir); // now just rewrite the name of our uploaded file with the count and the extension, strrchr will return us the needle for the extension $_FILES['attachement']['name'] = ceil(count($files)+'1').''.strrchr($_FILES['attachement']['name'], '.'); $uploadfile = $uploaddir . basename($_FILES['attachement']['name']); // do same for the last uploaded file, just build it if we have a previously uploaded file $previousToDestroy = empty($globals['attachement']) && !empty($_FILES['attachement']['name']) ? '' : $uploaddir . $files[ceil(count($files)-'1')]; // now verify if file was successfully uploaded if(!move_uploaded_file($_FILES['attachement']['tmp_name'], $uploadfile)) { echo '<pre> Your file was not uploaded please try again here are your debug informations: '.print_r($_FILES) .' </pre>'; } else { echo 'image succesfully uploaded!'; } // and reset the globals vars if we maybe want to reedit the form: first the new image, second delete the previous.... $globals['attachement'] = $_FILES['attachement']['name']; if(!empty($previousToDestroy)) { unlink($previousToDestroy); } } } } upload_back(); // now the form if you need it (with the global...): // just add the hidden input when you write your preview script and... in the original form but! if you have send a value to advert your script than we are remaking the form. for exemple with a hidden input with "reedit" as value or with a $_GET method who can verify that condition echo '<form action="" method="post" enctype="multipart/form-data"> <input type="file" name="attachement" name="attachement"></input> <input type="hidden" name="attachement_loos" name="attachement_loos" value="', $globals['attachement'] ,'"></input> <input type="submit" value="submit"></input> </form>'; ---- Server IP: 89.31.146.176 Probable Submitter: 87.231.189.234 ---- Manual Page -- http://www.php.net/manual/en/features.file-upload.php Edit -- https://master.php.net/note/edit/88959 Del: integrated -- https://master.php.net/note/delete/88959/integrated Del: useless -- https://master.php.net/note/delete/88959/useless Del: bad code -- https://master.php.net/note/delete/88959/bad+code Del: spam -- https://master.php.net/note/delete/88959/spam Del: non-english -- https://master.php.net/note/delete/88959/non-english Del: in docs -- https://master.php.net/note/delete/88959/in+docs Del: other reasons-- https://master.php.net/note/delete/88959 Reject -- https://master.php.net/note/reject/88959 Search -- https://master.php.net/manage/user-notes.php