感谢您的支持，非常感谢。
我是PHP的新手，我听说我可以从那些位于Stackoverflow的PHP专家那里找到我的解决方案。
我刚刚买了this脚本，现在制作人停止提供支持。
头像上传表单
http://i.stack.imgur.com/YO7PD.jpg
我的问题
该脚本可以为每个用户上传配置文件，但它不会调整图像大小。 如果用户上传了一个2 MB的图像，那么该脚本会在整个网站上使用2 mb图像，这会使我的网站运行速度变慢。
我希望脚本应该将图像大小调整为</ p>
（[width = 100px and height = auto]和
[width = 19px and height = auto]）
因此我使用较小的图像（例如~150 kb和~55kb）并让我的网站运行得更快。
这是处理上传
的avatar.php文件
<?php
// declare variables
$msg = '';
$f_avatar_image = '';
// ------------------------------------------------------------
// UPLOAD AVATAR
// ------------------------------------------------------------
if(isset($_POST['btnUploadAvatar']) && !empty($_FILES['fileUpload']['name']))
{
// create variables
$avatar_directory = AVATAR_FILE_DIRECTORY;
$file_name = $_FILES['fileUpload']['name'];
$file_type = $_FILES['fileUpload']['type'];
$file_size = $_FILES['fileUpload']['size'];
$file_size_limit = AVATAR_FILE_SIZE;
$calc_kilobites = 1024;
$file_size_kb = round($file_size / $calc_kilobites, 2);
$temp_file_name = $_FILES['fileUpload']['tmp_name'];
$upload_error = $_FILES['fileUpload']['error'];
// create unique file name
$unique_file_name = $user_name.'-'.$file_name;
$avatar_img_url = AVATAR_IMAGE_URL.$user_name.'-'.$file_name;
// if upload error display error message
if($upload_error > 0)
{
echo 'ERROR:' . $upload_error;
}
// if no upload error - check for file types
if($upload_error == 0 &&
$file_type == 'image/gif' ||
$file_type == 'image/jpeg' ||
$file_type == 'image/png' )
{
// if file size is within limits
if($file_size <= $file_size_limit)
{
// move uploaded file to assigned directory
if(move_uploaded_file($temp_file_name, $avatar_directory . $unique_file_name))
{
// get user id
$get_user_id = mysqli_query($conn, "SELECT UserId FROM users WHERE UserName = '$user_name' Limit 1") or die($dataaccess_error);
// if user id exist
if(mysqli_num_rows($get_user_id) == 1 )
{
$row = mysqli_fetch_array($get_user_id);
$user_id = $row['UserId'];
// check if user profile already exist
$check_user_profile = mysqli_query($conn, "SELECT UserId FROM profiles WHERE UserName = '$user_name' Limit 1") or die($dataaccess_error);
// if user profile exist - update
if(mysqli_num_rows($check_user_profile) == 1 )
{
// update profiles
$update_profile = mysqli_query($conn, "UPDATE profiles SET AvatarImage = '$avatar_img_url' WHERE UserName = '$user_name'") or die($dataaccess_error);
if(mysqli_affected_rows($conn) > 0)
{
echo 'Upload Success! <br/>';
echo 'File Name: '.$file_name.'<br/>';
echo 'File Type: '.$file_type.'<br/>';
echo 'File Size: '.$file_size_kb.' Kb <br/>';
$msg = $profile_update_success;
}
else
{
$msg = $profile_update_failed;
}
}
else
{
// create profile
$insert_profile = mysqli_query($conn, "INSERT INTO profiles(UserId,UserName,AvatarImage) VALUES($user_id,'$user_name','$avatar_img_url')") or die($dataaccess_error);
if(mysqli_affected_rows($conn) > 0)
{
echo 'Upload Success! <br/>';
echo 'File Name: '.$file_name.'<br/>';
echo 'File Type: '.$file_type.'<br/>';
echo 'File Size: '.$file_size_kb.' Kb <br/>';
$msg = $profile_update_success;
}
else
{
$msg = $profile_create_failed;
}
}
}
else
{
// user id not found
$msg = $profile_update_failed2;
}
}
else
{
$msg = $avatar_upload_failed;
}
}
else
{
$msg = $avatar_file_too_large;
}
}
else
{
$msg = $avatar_wrong_file_type;
}
}
elseif(isset($_POST['btnUploadAvatar']) && empty($_FILES['fileUpload']['name']))
{
$msg = $avatar_empty;
}
// ------------------------------------------------------------
// DISPLAY AVATAR ON PAGE LOAD
// ------------------------------------------------------------
if($user_name)
{
// get user id
$get_avatar_image = mysqli_query($conn, "SELECT AvatarImage FROM profiles WHERE UserName = '$user_name' Limit 1") or die($dataaccess_error);
if(mysqli_num_rows($get_avatar_image) == 1)
{
$row = mysqli_fetch_array($get_avatar_image);
if($row['AvatarImage'] != 'NULL' && $row['AvatarImage'] != '')
{
$f_avatar_image = $row['AvatarImage'];
}
else
{
$f_avatar_image = AVATAR_IMAGE_URL.DEFAULT_AVATAR_IMAGE;
}
}
else
{
$f_avatar_image = AVATAR_IMAGE_URL.DEFAULT_AVATAR_IMAGE;
}
}
?>
这是avatar.html.php文件格式
<?php require_once(ROOT_PATH.'user/modules/accordion/avatar.php'); ?>
<div class="profileWrap">
<form name="frmAvatar" method="post" action="" enctype="multipart/form-data" class="htmlForm">
<div class="infoBanner2">
<p>REQUIREMENTS: File Size: <?php echo AVATAR_FILE_SIZE / 1024 ?> kb max. File Type: gif, jpg, png</p>
</div>
<!-- error msgs -->
<ul>
<?php echo $msg; ?>
</ul>
<p><input name="selectFile" type="image" src="<?php echo $f_avatar_image; ?>" class="img"></p>
<p><label for="fileUpload">Avatar Image:</label><input name="fileUpload" type="file" id="fileUpload" maxlength="255" ></p>
<input name="btnUploadAvatar" type="submit" value="Upload" class="gvbtn btn" onclick="return confirm('Are You READY to UPLOAD?');"/>
</form>
</div>
avatar.php文件链接到配置文件（web.config.php）文件
// ------------------------------------------------------------
// 16. AVATAR IMAGE FILE
// ------------------------------------------------------------
define('AVATAR_FILE_SIZE', 2097152); // 50 Kb max. -> 1 kilobyte = 1024 bytes
define('AVATAR_FILE_DIRECTORY', ROOT_PATH.'user/upload/avatars/'); // upload directory
define('AVATAR_IMAGE_URL', SITE_URL.'user/upload/avatars/'); // default avatar url
define('DEFAULT_AVATAR_IMAGE', 'default-avatar.png'); // default avatar image
如果您需要提出任何我准备回答的问题。 让我感谢那个回答它的人。