Salve a tutti
Scusate il post forse gia trattato ma avrei bisogno di inserire un valore nella mia pagina di Upload e il codice php nn lo conosco tanto bene!
Attualmente carico le immagini sul server facendo un resize ad un valore impostato (a scelta)
Noto che comunque, facendo il resize delle immagini a 550x413 risulti ancora abbastanza pesante...
Adesso pensavo di poter abbassare la qualità della stessa tipo all'80% ma nn so come inserire questo passaggio nello script e cercavo aiuto da voi!
Posto il codice e ringrazio anticipatamente!
codice:
<?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 = 550;
$max_upload_height = 413;
// $max_upload_width = 2592;
// $max_upload_height = 1944;
$path=$_POST['path'];
//print $path;
// if user chosed properly then scale down the image according to user preferances
if(isset($_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"]);
}
// Cartella dove caricare i files
$remote_file = "images/stories/$path/".$_FILES["image_upload_box"]["name"];
imagejpeg($image_source,$remote_file,100);
chmod($remote_file,0644);
//print $remote_file;
// get width and height of original image
list($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($image_source);
header("Location: submit2.php?upload_message=image uploaded&upload_message_type=success&show_image=".$_FILES["image_upload_box"]["name"]);
exit;
}
else{
header("Location: submit2.php?upload_message=make sure the file is jpg, gif or png and that is smaller than 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>Carica immagini</title>
<style type="text/css">
<!--
body,td,th {
font-family: Arial, Helvetica, sans-serif;
color: #333333;
font-size: 12px;
}
.upload_message_success {
padding:4px;
background-color:#009900;
border:1px solid #006600;
color:#FFFFFF;
margin-top:10px;
margin-bottom:10px;
}
.upload_message_error {
padding:4px;
background-color:#CE0000;
border:1px solid #990000;
color:#FFFFFF;
margin-top:10px;
margin-bottom:10px;
}
-->
</style>
</head>
<body>
<h1 style="margin-bottom: 0px">Carica foto big</h1>
<?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="submit2.php" method="post" enctype="multipart/form-data" name="image_upload_form" id="image_upload_form" style="margin-bottom:0px;">
<label>Image file, maximum 4MB. it can be jpg, gif, png:</label>
<input name="image_upload_box" type="file" id="image_upload_box" size="40" />
<input type="submit" name="submit" value="Upload image" />
<label>Scale down image? (550 x 413 px max):</label>
<input name="max_width_box" type="text" id="max_width_box" value="550" size="4">
x
<input name="max_height_box" type="text" id="max_height_box" value="413" size="4">
px.
<select name="path">
<option value="nido" selected>Un giorno al nido</option>
<option value="gallery_school">gallery school</option>
<option value="gitaalbatros">Gita Albatros</option>
<option value="ascuola">A scuola</option>
<option value="hallowin">Hallowin</option>
</select>
<p style="padding:5px; border:1px solid #EBEBEB; background-color:#FAFAFA;">
Notes:
The image will not be resized to this exact size; it will be scalled down so that neider width or height is larger than specified.
When uploading this script make sure you have a directory called "image_files" next to it and make that directory writable, permissions 777.
After you uploaded images and made tests on our server please delete all uploaded images :)
</p>
<input name="submitted_form" type="hidden" id="submitted_form" value="image_upload_form" />
</form>
<?php if(isset($_REQUEST['show_image']) and $_REQUEST['show_image']!=''){?>
Quale immagine ho caricato
</p>
<?php }?>
</body>
</html>
Ps: Alla voce "che immagine ho caricato, sarebbe possibile recuperare l'immagine appena caricata..
Ho provato cosi ma senza risultato
Attendo Vs info 
</p> <?php }?>
Rispondi quotando
<?php }?>
