¿Cómo relacionar el nombre de una foto con el usuario que la subió? Hola a todos, tengo el siguiente problema, tengo una web que hasta ahora no había necesitado de que los usuarios tuviesen su propio espacio (se registraban solo para acceder a determinados contenidos), ahora si necesito que estos puedan subir sus imágenes y otros datos, el caso es, que cuando el usuario suba sus fotos estas queden ligadas a el, de tal manea que solo el pueda ver sus imágenes cuando abra su sesión.
¿Cómo podría hacer lo que planteo?
Este es mi código php con que suben sus fotos:
Supongo que he de usar la base de datos donde esta la tabla de los registros de los usuarios.
Está puesto lo esencial...
<?php
error_reporting (E_ALL ^ E_NOTICE);
session_start();
if (!isset($_SESSION['random_key']) || strlen($_SESSION['random_key'])==0){
$_SESSION['random_key'] = strtotime(date('Y-m-d H:i:s'));
$_SESSION['user_file_ext']= "";
}
$upload_dir = "upload_pic";
$upload_path = $upload_dir."/";
$large_image_prefix = "resize_";
$thumb_image_prefix = "thumbnail_";
$large_image_name = $large_image_prefix.$_SESSION['random_key'];
$thumb_image_name = $thumb_image_prefix.$_SESSION['random_key'];
$max_file = "2";
$max_width = "500";
$max_height= "350";
$thumb_width = "120";
$thumb_height = "120";
$allowed_image_types = array('image/pjpeg'=>"jpg",'image/jpeg'=>"jpg",'image/jpg'=>"jpg",'image/png'=>"png",'image/x-png'=>"png",'image/gif'=>"gif");
$allowed_image_ext = array_unique($allowed_image_types);
$image_ext = "";
foreach ($allowed_image_ext as $mime_type => $ext) {
$image_ext.= strtoupper($ext)." ";
}
function resizeImage($image,$width,$height,$scale) {
list($imagewidth, $imageheight, $imageType) = getimagesize($image);
$imageType = image_type_to_mime_type($imageType);
$newImageWidth = ceil($width * $scale);
$newImageHeight = ceil($height * $scale);
$newImage = imagecreatetruecolor($newImageWidth,$newImageHeigh t);
switch($imageType) {
case "image/gif":
$source=imagecreatefromgif($image);
break;
case "image/pjpeg":
case "image/jpeg":
case "image/jpg":
$source=imagecreatefromjpeg($image);
break;
case "image/png":
case "image/x-png":
$source=imagecreatefrompng($image);
break;
}
imagecopyresampled($newImage,$source,0,0,0,0,$newI mageWidth,$newImageHeight,$width,$height);
switch($imageType) {
case "image/gif":
imagegif($newImage,$image);
break;
case "image/pjpeg":
case "image/jpeg":
case "image/jpg":
imagejpeg($newImage,$image,90);
break;
case "image/png":
case "image/x-png":
imagepng($newImage,$image);
break;
}
chmod($image, 0777);
return $image;
}
function resizeThumbnailImage($thumb_image_name, $image, $width, $height, $start_width, $start_height, $scale) {
list($imagewidth, $imageheight, $imageType) = getimagesize($image);
$imageType = image_type_to_mime_type($imageType);
$newImageWidth = ceil($width * $scale);
$newImageHeight = ceil($height * $scale);
$newImage = imagecreatetruecolor($newImageWidth,$newImageHeigh t);
switch($imageType) {
case "image/gif":
$source=imagecreatefromgif($image);
break;
case "image/pjpeg":
case "image/jpeg":
case "image/jpg":
$source=imagecreatefromjpeg($image);
break;
case "image/png":
case "image/x-png":
$source=imagecreatefrompng($image);
break;
}
imagecopyresampled($newImage,$source,0,0,$start_wi dth,$start_height,$newImageWidth,$newImageHeight,$ width,$height);
switch($imageType) {
case "image/gif":
imagegif($newImage,$thumb_image_name);
break;
case "image/pjpeg":
case "image/jpeg":
case "image/jpg":
imagejpeg($newImage,$thumb_image_name,90);
break;
case "image/png":
case "image/x-png":
imagepng($newImage,$thumb_image_name);
break;
}
chmod($thumb_image_name, 0777);
return $thumb_image_name;
}
function getHeight($image) {
$size = getimagesize($image);
$height = $size[1];
return $height;
}
function getWidth($image) {
$size = getimagesize($image);
$width = $size[0];
return $width;
}
$large_image_location = $upload_path.$large_image_name.$_SESSION['user_file_ext'];
$thumb_image_location = $upload_path.$thumb_image_name.$_SESSION['user_file_ext'];
if(!is_dir($upload_dir)){
mkdir($upload_dir, 0777);
chmod($upload_dir, 0777);
}
if (file_exists($large_image_location)){
if(file_exists($thumb_image_location)){
$thumb_photo_exists = "<img style=\"vertical-align: middle;\" src=\"".$upload_path.$thumb_image_name.$_SESSION['user_file_ext']."\" alt=\"Thumbnail Image\"/>";
}else{
$thumb_photo_exists = "";
}
$large_photo_exists = "<img src=\"".$upload_path.$large_image_name.$_SESSION['user_file_ext']."\" alt=\"Large Image\"/>";
} else {
$large_photo_exists = "";
$thumb_photo_exists = "";
}
if (isset($_POST["upload"])) {
$userfile_name = $_FILES['image']['name'];
$userfile_tmp = $_FILES['image']['tmp_name'];
$userfile_size = $_FILES['image']['size'];
$userfile_type = $_FILES['image']['type'];
$filename = basename($_FILES['image']['name']);
$file_ext = strtolower(substr($filename, strrpos($filename, '.') + 1));
if((!empty($_FILES["image"])) && ($_FILES['image']['error'] == 0)) {
foreach ($allowed_image_types as $mime_type => $ext) {
if($file_ext==$ext && $userfile_type==$mime_type){
$error = "";
break;
}else{
$error = "Only <strong>".$image_ext."</strong> images accepted for upload<br />";
}
}
if ($userfile_size > ($max_file*1048576)) {
$error.= "Images must be under ".$max_file."MB in size";
}
}else{
$error= "Select an image for upload";
}
if (strlen($error)==0){
if (isset($_FILES['image']['name'])){
$large_image_location = $large_image_location.".".$file_ext;
$medium_image_location = $medium_image_location.".".$file_ext;
$thumb_image_location = $thumb_image_location.".".$file_ext;
$_SESSION['user_file_ext']=".".$file_ext;
move_uploaded_file($userfile_tmp, $large_image_location);
chmod($large_image_location, 0777);
$width = getWidth($large_image_location);
$height = getHeight($large_image_location);
if ($height > $max_height){
$scale = $max_height/$height;
$uploaded = resizeImage($large_image_location,$width,$height,$ scale);
}else{
$scale = 1;
$uploaded = resizeImage($large_image_location,$width,$height,$ scale);
}
if (file_exists($thumb_image_location)) {
unlink($thumb_image_location);
}
if (file_exists($medium_image_location)) {
unlink($medium_image_location);
}
}
header("location:".$_SERVER["PHP_SELF"]);
exit();
}
}
if (isset($_POST["upload_thumbnail"]) && strlen($large_photo_exists)>0) {
$x1 = $_POST["x1"];
$y1 = $_POST["y1"];
$x2 = $_POST["x2"];
$y2 = $_POST["y2"];
$w = $_POST["w"];
$h = $_POST["h"];
$scale = $thumb_width/$w;
$cropped = resizeThumbnailImage($thumb_image_location,
$large_image_location,$w,$h,$x1,$y1,$scale);
header("location:".$_SERVER["PHP_SELF"]);
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">
Aquí va el html de lo que forma la página en si, pero como ya he dicho lo esencial está puesto.
</html>
:
