I wonder if anyone can help me.
Using some excellent online tutorials, I put together the code below that allows the user to upload image files to the server folder, as well as the file name and other data, in the mySQL database.
Php script
<?php //define a maxim size for the uploaded images //define ("MAX_SIZE","100"); // define the width and height for the thumbnail // note that theese dimmensions are considered the maximum dimmension and are not fixed, // because we have to keep the image ratio intact or it will be deformed define ("WIDTH","150"); define ("HEIGHT","100"); // this is the function that will create the thumbnail image from the uploaded image // the resize will be done considering the width and height defined, but without deforming the image function make_thumb($img_name,$filename,$new_w,$new_h) { //get image extension. $ext=getExtension($img_name); //creates the new image using the appropriate function from gd library if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext)) $src_img=imagecreatefromjpeg($img_name); if(!strcmp("png",$ext)) $src_img=imagecreatefrompng($img_name); //gets the dimmensions of the image $old_x=imageSX($src_img); $old_y=imageSY($src_img); // next we will calculate the new dimmensions for the thumbnail image // the next steps will be taken: // 1. calculate the ratio by dividing the old dimmensions with the new ones // 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable // and the height will be calculated so the image ratio will not change // 3. otherwise we will use the height ratio for the image // as a result, only one of the dimmensions will be from the fixed ones $ratio1=$old_x/$new_w; $ratio2=$old_y/$new_h; if($ratio1>$ratio2) { $thumb_w=$new_w; $thumb_h=$old_y/$ratio1; } else { $thumb_h=$new_h; $thumb_w=$old_x/$ratio2; } // we create a new image with the new dimmensions $dst_img=ImageCreateTrueColor($thumb_w,$thumb_h); // resize the big image to the new created one imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y); // output the created image to the file. Now we will have the thumbnail into the file named by $filename if(!strcmp("png",$ext)) imagepng($dst_img,$filename); else imagejpeg($dst_img,$filename); //destroys source and destination images. imagedestroy($dst_img); imagedestroy($src_img); } // This function reads the extension of the file. // It is used to determine if the file is an image by checking the extension. function getExtension($str) { $i = strrpos($str,"."); if (!$i) { return ""; } $l = strlen($str) - $i; $ext = substr($str,$i+1,$l); return $ext; } $title = ($_POST['title']); if ($title == '') // if title is not set $title = '(No Title Provided)';// use (empty title) string //reads the name of the file the user submitted for uploading $image=$_FILES['image']['name']; if ($image) { // get the original name of the file from the clients machine $filename = stripslashes($_FILES['image']['name']); // get the extension of the file in a lower case format $extension = getExtension($filename); $extension = strtolower($extension); // if it is not a known extension, we will suppose it is an error, print an error message //and will not upload the file, otherwise we continue if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png")) { echo '<b> Error! </b> - The image that you attempted to upload is not in the correct format. The file format <b> must </b> be one of the following: <b> "jpg", "jpeg" </b> or <b> "png" </b>. Please try again.'; $errors=1; } else { // get the size of the image in bytes // $_FILES[\'image\'][\'tmp_name\'] is the temporary filename of the file in which the uploaded file was stored on the server $size=getimagesize($_FILES['image']['tmp_name']); $sizekb=filesize($_FILES['image']['tmp_name']); //compare the size with the maxim size we defined and print error if bigger if ($sizekb > 1150000) { echo '<b> Error! </b> - The file that you are attempting to upload is greater than the prescribed <b> 1MB </b> limit. Please try again.'; $errors=1; } //we will give an unique name, for example the time in unix time format $image_name=time().'.'.$title.'.'.$extension; //the new name will be containing the full path where will be stored (images folder) $newname="images/".$image_name; $copied = copy($_FILES['image']['tmp_name'], $newname); if (!$copied) { //echo '<b> Error! </b> Your file has not been loaded'; //$errors=1; } else { // the new thumbnail image will be placed in images/thumbs/ folder $thumb_name='images/thumbs/'.$image_name; // call the function that will create the thumbnail. The function will get as parameters //the image name, the thumbnail name and the width and height desired for the thumbnail $thumb=make_thumb($newname,$thumb_name,WIDTH,HEIGHT); } }} //If no errors registred, print the success message and show the thumbnail image created if(isset($_POST['Submit']) && !$errors) { //echo '<br><b> Success! </b> - Your image has been uploaded</br>'; //echo '<img src="'.$thumb_name.'">'; } require("mapmyfindsdbinfo.php"); // Gets data from form $userid = $_POST["userid"]; $locationid = $_POST["locationid"]; $findosgb36lat = $_POST["findosgb36lat"]; $findosgb36lon = $_POST["findosgb36lon"]; $dateoftrip = $_POST["dateoftrip"]; $findcategory = $_POST["findcategory"]; $findname = $_POST["findname"]; $finddescription = $_POST["finddescription"]; $detectorid= $_POST["detectorname"]; $searchheadid = $_POST["searchheadname"]; if( empty($_POST["detectorsettings"]) ) { $detectorsettings = 'No details provided.'; } else { $detectorsettings = $_POST["detectorsettings"]; } if( empty($_POST["pasref"]) ) { $pasref = 'No PAS Ref. number provided.'; } else { $pasref = $_POST["pasref"]; } if( empty($_POST["additionalcomments"]) ) { $additionalcomments = 'No additional comments made.'; } else { $additionalcomments = $_POST["additionalcomments"]; } $makepublic = $_POST["makepublic"]; // Opens a connection to a MySQL server $conn = mysql_connect ("hostname", $username, $password); if (!$conn) { die('Not connected : ' . mysql_error()); } // Set the active MySQL database $db_selected = mysql_select_db($database, $conn); if (!$db_selected) { die ('Can\'t use db : ' . mysql_error()); } $sql = "INSERT INTO finds (userid, locationid, findosgb36lat, findosgb36lon, dateoftrip, findcategory, findname, finddescription, detectorid, searchheadid, detectorsettings, pasref, additionalcomments, makepublic) VALUES ('$userid', '$locationid', '$findosgb36lat', '$findosgb36lon', '$dateoftrip', '$findcategory', '$findname', '$finddescription', '$detectorid', '$searchheadid', '$detectorsettings', '$pasref', '$additionalcomments', '$makepublic')"; $result = mysql_query($sql, $conn); $findid = mysql_insert_id($conn); $sql = "INSERT INTO testimages (title, imagename, findid) VALUES ('$title', '$image_name', '$findid')"; $result = mysql_query($sql, $conn); if (!$result) { die('Invalid query: ' . mysql_error()); } ?>
HTML form
<form name="savemyfindstolocation" method="post" enctype="multipart/form-data" action="savemyfindstolocation.php"> <p align="left">Do You Wish To Add Find Images<label></label> <label></label> </p> <div align="left"> <table id="addfiletable" border="1" style="table-layout:auto"> <tr> <td> </td> <td><div align="center">Title</div></td> <td><div align="center">File Location </div></td> </tr> <tr> <td width="20"><input name="select" type="radio" id="select" title=""/></td> <td width="144"><input name="title" type="text" id="title"/></td> <td width="314"><input name="image" type="file" id="image" onchange="addRow();" size="40"/></td> </tr> </table> <div align="justify"> <input type="submit" name="deleterow" value="Delete Row" /> </div> </div> <input name="submit" type="submit" value="Submit" /> </form>
Everything works well, but now I would like to expand the functionality that allows the user to upload more than 1 file at a time. I have done quite a bit of research to see how to upload multiple files, but I'm pretty new to PHP and a little sure what is the best way to do this.
I was just wondering if anyone could take a look at what I put together and offer some recommendations on how I can change this to upload mutiple files to the submit form.
Many thanks