我有以下php代码,允许用户上传图片。如何修改我的代码,以便有一个限制(比如说最大20 k)到上传图像的大小。这是我的代码。
<?php
/// another code ///
if($_POST)
{
if(!isset($_FILES['mFile']))
{
//required variables are empty
die("Please add a image");
}
if($_FILES['mFile']['error'])
{
//File upload error encountered
die(upload_errors($_FILES['mFile']['error']));
}
$FileName = strtolower($_FILES['mFile']['name']);
$auto = mysql_real_escape_string($_POST['auto']);
$FileType = $_FILES['mFile']['type']; //file type
$FileSize = $_FILES['mFile']["size"]; //file size
if(move_uploaded_file($_FILES['mFile']["tmp_name"], $UploadDirectory . $NewFileName ))
{
mysql_query("INSERT INTO posts (title, post, img_name) VALUES ('$FileTitle', '$postURL', '$NewFileName')");
die('Thank you for your submission.');
}else{
die('There seems to be a problem. please try again.');
}
}
/// another code ///
?>
答案 0 :(得分:1)
像这样设置
<?php
ini_set('post_max_size', '20K');
ini_set('upload_max_filesize', '20K');
答案 1 :(得分:1)
有几种方法可以实现这一目标:
编程:
ini_set('post_max_size', '20K');
ini_set('upload_max_filesize', '20K');
通过php.ini:
post_max_size = 20K
upload_max_filesize = 20K
通过.htaccess:
php_value upload_max_filesize 20K
php_value post_max_size 20K
答案 2 :(得分:1)
这是上传,更改表格和变量的图片大小的个人使用限制样本
$picture = $_FILES['pic']['name'];
$picsize = $_FILES['pic']['size'];
$pictype = $_FILES['pic']['type'];
if(!empty($picture)){
if(($pictype == 'image/gif') || ($pictype == 'image/jpeg') || ($pictype == 'image/pjpeg') || ($pictype == 'image/png') && ($picsize > 0) && ($picsize <= 30000 )){
if($_FILES['pic']['error'] == 0)
{
$target = UPLOADPATH . $user_name;
echo $target;
if(move_uploaded_file($_FILES['pic']['tmp_name'], $target))
{
$query2 = "UPDATE users SET profile_image = '{$user_name}' WHERE user_name = '{$user_name}'";
$result2 = mysql_query($query2);
}
}
else{
echo 'upload failed';
}
}
elseif(($pictype != 'image/gif') && ($pictype != 'image/jpeg') && ($pictype != 'image/pjpeg') && ($pictype != 'image/png')){
echo 'incorrect file type';
}
elseif(($picsize <= 0) || ($picsize > 30000 ))
{
echo 'incorrect file size';
}
答案 3 :(得分:-2)
php.ini中有一个设置,你可以限制它。有些人为此目的使用隐藏字段,但我不喜欢它。