Buonasera a tuttiiiii 
come va?
Vorrei porre alla vostra attenzione un pezzo di codice php il cui scopo è quello di caricare sul server delle immagini da un form di upload!!!
Premetto dicendo che in locale funziona, ma sul sito finale no 
Quindi probabilmente il problema potrebbe essere dovuto a restrizioni o altro dei server aruba, però vi posto comunque il codice nel caso ci sia qualcosa di errato:
Codice PHP:
<?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"]);
}
$remote_file = "http://******/image_files/".$_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($image_source);
header("Location: [url]http://******/ins.php?upload_message=Immagine[/url] caricata con successo&upload_message_type=success&show_image=".$_FILES["image_upload_box"]["name"]);
require('connessionedb.php');
$password=md5($_POST['password']);
$titolo=mysql_real_escape_string($_POST['titolo']);
$descrizione=mysql_real_escape_string(nl2br($_POST['descrizione']));
$url=mysql_real_escape_string($_FILES["image_upload_box"]["name"]);
$query="SELECT pass FROM pass";
$result = mysql_query($query) or die(mysql_error());
$row=mysql_fetch_array($result);
$pass=$row['pass'];
if($password==$pass){
if(($descrizione!="")&&($titolo!="")){
$query = "INSERT INTO miniatura
(title,
description,
photo_url)
VALUES
('$titolo',
'$descrizione',
'$url')";
$result = mysql_query($query) or die(mysql_error());
$query = "SELECT id FROM miniatura WHERE title='$titolo'";
$result = mysql_query($query) or die(mysql_error());
$row=mysql_fetch_array($result);
$id=$row['id'];
echo"$id";
//rename("http://******/image_files/".$_FILES["image_upload_box"]["name"],"http://******/image_files/$id.jpg");
$query = "UPDATE miniatura SET photo_url='$id.jpg' WHERE title='$titolo'";
$result = mysql_query($query) or die(mysql_error());
$commit = session_commit();
header("Location: [url]http://******/miniature.php[/url]");
}
} else {
if($password=="d41d8cd98f00b204e9800998ecf8427e"){
} else {
echo"
<font color=\"red\">La password non è corretta, non puoi aggiungere miniature!</font>";
}
}
exit;
}
else{
header("Location: ins.php?upload_message=Verifica se il formato è jpg, gif o png e minore di 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>Miniature Artistiche - MTB</TITLE>
<link rel="stylesheet" href="stile.css" type="text/css">
<script type="text/javascript" src="/script/chrome.js"></script>
<SCRIPT LANGUAGE="JavaScript">
function ver()
{
for (i=0; i<document.forms[0].elements.length; ++i)
if(document.forms[0].elements[i].value == "")
{
alert("Riempire tutti i campi!");
document.forms[0].elements[i].focus();
return false;
}
return true;
}
</SCRIPT>
</head>
<body>
<table width="100%" align="center" border="0">
<tr>
<td align="center">
<h2>Carica miniatura</h2>
<?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="http://******/ins.php" method="post" enctype="multipart/form-data" name="image_upload_form" id="image_upload_form" style="margin-bottom:0px;" onSubmit="return ver();">
<label>Immagine, max 4MB. Formato: jpg, gif, png.
</label>
<input name="image_upload_box" type="file" id="image_upload_box" size="40" />
<label>Risoluzione predefinita:</label>
<input name="max_width_box" type="text" id="max_width_box" value="1024" size="4" readonly="readonly">
x
<input name="max_height_box" type="text" id="max_height_box" value="768" size="4" readonly="readonly">
px.
<?php if(isset($_REQUEST['show_image']) and $_REQUEST['show_image']!=''){?>
[img]image_files/<?php echo $_REQUEST['show_image'];?>[/img]
</p>
<?php }?>
Password
<input type="password" name="password" maxlength="10" />
Titolo
<input type="text" name="titolo" maxlength="60"/>
Descrizione
<textarea cols="70" rows="15" name="descrizione" ></textarea>
<input name="submitted_form" type="hidden" id="submitted_form" value="image_upload_form" /><input type="submit" name="submit" value="Carica" />
</form>
</td>
</tr>
</table>
</body>
</html>
Grazie a tutti 
Rispondi quotando