我正在使用interspire购物车版本3.5 上传产品图片时出现以下错误未定义索引：UPLOADHANDLER_ERR_MOVE_NOT_WRITABLE 请解释如何删除此错误 第138行的ISC_LOG-＆gt; HandlePHPErrors
/lib/uploadhandler.php ISC_LOG-＆gt; HandlePHPErrors 在第138行
/admin/includes/classes/class.product.image.php UploadHandlerFile->moveAs
第99行
/includes/classes/class.product.image.php ISC_ADMIN_PRODUCT_IMAGE->remoteNewImageUpload on line 24
/includes/classes/class.remote.php ISC_ADMIN_PRODUCT_IMAGE->routeRemoteRequest on line 29
/admin/remote.php ISC_ADMIN_REMOTE->HandleToDo on line 18
<?php
if (!defined('UPLOAD_ERR_EXTENSION')) {
// introduced in 5.1.2
define('UPLOAD_ERR_EXTENSION', 8);
}
class UploadHandlerException extends Exception { }
class UploadHandlerFileException extends UploadHandlerException { }
class UploadHandlerProcessException extends UploadHandlerException { }
class UploadHandlerProcessPostSizeException extends UploadHandlerProcessException { }
class UploadHandlerProcessNoInputException extends UploadHandlerProcessException { }
class UploadHandlerFileMoveException extends UploadHandlerFileException { }
class UploadHandlerFileMoveExistsException extends UploadHandlerFileMoveException { }
class UploadHandlerFileMoveNotWritableException extends UploadHandlerFileMoveException { }
/**
* Class for storing information about an uploaded file. Returned as a result of the various 'get' file methods in the UploadHandler class.
*
*/
class UploadHandlerFile {
/**
* Name of upload field in HTML form
*
* @var string
*/
public $fieldName;
/**
* Name of uploaded file from client system
*
* @var string
*/
public $name;
/**
* MIME type of uploaded file
*
* @var string
*/
public $type;
/**
* Full path and filename of temporary uploaded file
*
* @var string
*/
public $tmp_name;
/**
* Error code of uploaded file, if any
*
* @var int
*/
public $error;
/**
* Size of uploaded file, in bytes
*
* @var int
*/
public $size;
/**
* Indicates if the file has been moved out of the temp storage.
*
* @var bool
*/
private $moved = false;
/**
*
* @param string $fieldName Name of uploaded field in HTML form
* @param string $name Name of uploaded file from client system
* @param string $type MIME type of uploaded file
* @param string $tmp_name Full path and filename of temporary uploaded file
* @param int $error Error code of uploaded file, if any
* @param int $size Size of uploaded file, in bytes
* @return UploadHandlerFile
*/
public function __construct ($fieldName, $name, $type, $tmp_name, $error, $size)
{
$this->fieldName = $fieldName;
$this->name = $name;
$this->type = $type;
$this->tmp_name = $tmp_name;
$this->error = $error;
$this->size = $size;
}
/**
* Attempts to moves this uploaded file to the given destination folder, automatically using the client-provided filename.
*
* @param string $destination Folder to move the file to
* @param bool $overwrite Optional. Default true. If true, any existing destination file will be overwritten. If false, this will throw UploadHandlerFileMoveExistsException if the destination file exists.
* @return bool Returns true on success, otherwise false.
* @throws UploadHandlerFileMoveExistsException If the destination file exists and $overwrite is false.
*/
public function move ($destination, $overwrite = true)
{
// remove trailing slashes in the destination folder
$destination = rtrim($destination, '\/');
return $this->moveAs($destination . '/' . $this->name);
}
/**
* Attempted to move this uploaded file to the given destination folder with the given filename
*
* @param $destination Folder to move the file to
* @param bool $overwrite Optional. Default true. If true, any existing destination file will be overwritten. If false, this will throw UploadHandlerFileMoveExistsException if the destination file exists.
* @return bool Returns true if the file was moved otherwise false if the file was already moved or if is_uploaded_file check returns false. If a move was attempted but failed an exception will be thrown.
* @throws UploadHandlerFileMoveExistsException If the destination file exists and $overwrite is false.
* @throws UploadHandlerFileMoveNotWritableException If the destination file exists and is not writable.
*/
public function moveAs ($destination, $overwrite = true)
{
if ($this->moved || !is_uploaded_file($this->tmp_name)) {
return false;
}
if (file_exists($destination)) {
if (!$overwrite) {
throw new UploadHandlerFileMoveExistsException(sprintf(UploadHandler::$i18n['UPLOADHANDLER_ERR_MOVE_EXISTS'], $this->tmp_name, $destination));
}
if (!is_writable($destination)) {
throw new UploadHandlerFileMoveNotWritableException(sprintf(UploadHandler::$i18n['UPLOADHANDLER_ERR_MOVE_NOT_WRITABLE'], $this->tmp_name, $destination));
}
}
$result = @move_uploaded_file($this->tmp_name, $destination);
if (!$result) {
// checks are performed above to avoid this but move_uploaded_file can still fail since the calls are not atomic
throw new UploadHandlerFileMoveNotWritableException(sprintf(UploadHandler::$i18n['UPLOADHANDLER_ERR_MOVE_NOT_WRITABLE'], $this->tmp_name, $destination));
}
$this->moved = true;
return true;
}
/**
* Returns the extension of the uploaded file based on the client-side filename. Files with no extensions will return a blank string, files such as ".htaccess" will return "htaccess".
*
* @return string
*/
public function getExtension ()
{
// reverse the string, find the text before the first (formerly last) dot and return it
$reversed = strrev($this->name);
$dot = strpos($reversed, '.', 0);
if ($dot === false || $dot === 0) {
// no dot or dot is at end of filename
return '';
}
// reverse the extension and return it
return strrev(substr($reversed, 0, $dot));
}
/**
* Determines if the file was uploaded OK according to the error code.
*
* @return bool
*/
public function getSuccess ()
{
return ($this->error === 0);
}
/**
*
*
* @return string
*/
public function getErrorMessage ()
{
$messages = array(
UPLOAD_ERR_INI_SIZE => 'UPLOAD_ERR_INI_SIZE',
UPLOAD_ERR_FORM_SIZE => 'UPLOAD_ERR_FORM_SIZE',
UPLOAD_ERR_PARTIAL => 'UPLOAD_ERR_PARTIAL',
UPLOAD_ERR_NO_FILE => 'UPLOAD_ERR_NO_FILE',
UPLOAD_ERR_NO_TMP_DIR => 'UPLOAD_ERR_NO_TMP_DIR',
UPLOAD_ERR_CANT_WRITE => 'UPLOAD_ERR_CANT_WRITE',
UPLOAD_ERR_EXTENSION => 'UPLOAD_ERR_EXTENSION',
);
if (!isset($messages[$this->error])) {
return '';
}
return sprintf(UploadHandler::$i18n[$messages[$this->error]], $this->fieldName, $this->type, $this->tmp_name, $this->error, $this->size, $this->getExtension());
}
}
/**
* Generic file upload handler class with temporary file management, exception throwing and language-based error information
*
*/
class UploadHandler {
/**
* Whether or not uploaded files have been processed yet.
*
* @var bool
*/
protected static $_processed = false;
/**
* Default language text that can be changed by the app using this lib.
*
* @var array
*/
public static $i18n;
/**
* Content length specified in the POST request.
*
* @var int
*/
public static $contentLength;
/**
* Max post size specified in php.ini stored as a number in bytes
*
* @var int
*/
public static $maxPostSize;
/**
* Max post size specified in php.ini stored as a number in bytes
*
* @var int
*/
public static $uploadMaxFilesize;
/**
* Max uploadable file size based on max POST size and max upload file size
*
* @var int
*/
public static $maxUploadSize;
/**
* Storage for data about files that have been uploaded. Array will contain a set of UploadHandlerFile instances.
*
* @var array
*/
public static $files;
/**
* Takes a php.ini-like bytes-size string such as 2M and converts it to a number. G, M and K each represent a unit of 1024 bytes: http://php.net/ini_get
*
* @param string $val The value to convert
* @return int The result in bytes
*/
public static function iniBytes ($val)
{
$val = trim($val);
$scale = strtolower($val[strlen($val) - 1]);
$val = intval($val);
switch ($scale) {
case 'g':
$val *= 1024;
case 'm':
$val *= 1024;
case 'k':
$val *= 1024;
}
return $val;
}
/**
* Processes server and $_FILE info relating to uploads to produce usable info. Assigns all gathered data to class variables which are accessible via public methods.
*
* @return void
* @throws UploadHandlerProcessPostSizeException If the posted data size exceeds the maximum post size defined by php configuration
* @throws UploadHandlerProcessNoInputException If no files were uploaded
*/
public static function processUploads ()
{
if (self::$_processed) {
return;
}
self::$_processed = true;
self::$files = array();
if (self::$contentLength >= self::$maxPostSize) {
// post length exceeds maximum post length ini directive - impossible for php to parse uploaded files because $_FILES is empty
throw new UploadHandlerProcessPostSizeException(sprintf(self::$i18n['UPLOADHANDLER_ERR_PROCESS_POST_SIZE'], self::$contentLength, self::$maxPostSize));
}
if (empty($_FILES)) {
// no files uploaded
throw new UploadHandlerProcessNoInputException(self::$i18n['UPLOADHANDLER_ERR_PROCESS_NO_INPUT']);
}
foreach ($_FILES as $fieldName => $field) {
if (is_array($field['name'])) {
// input field that uses [] in it's name
self::$files[$fieldName] = array();
foreach ($field['name'] as $index => $ignoreThisValue) {
$name = $field['name'][$index];
$type = $field['type'][$index];
$tmp_name = $field['tmp_name'][$index];
$error = intval($field['error'][$index]);
$size = intval($field['size'][$index]);
$file = new UploadHandlerFile($fieldName, $name, $type, $tmp_name, $error, $size);
self::$files[$fieldName][] = $file;
}
} else {
// single input field
$name = $field['name'];
$type = $field['type'];
$tmp_name = $field['tmp_name'];
$error = intval($field['error']);
$size = intval($field['size']);
$file = new UploadHandlerFile($fieldName, $name, $type, $tmp_name, $error, $size);
self::$files[$fieldName] = array($file);
}
}
}
/**
* Returns a flat list of all uploaded files; whether successful or not
*
* @return array
*/
public static function getAllFiles ()
{
self::processUploads();
$return = array();
foreach (self::$files as $field => $files) {
foreach ($files as $file) {
$return[] = $file;
}
}
return $return;
}
/**
* Returns only a list of files that were uploaded successfully
*
* @return array
*/
public static function getUploadedFiles ()
{
self::processUploads();
$return = array();
foreach (self::$files as $field => $files) {
foreach ($files as $file) {
if ($file->getSuccess()) {
$return[] = $file;
}
}
}
return $return;
}
/**
* Returns only a list of files that were not uploaded successfully
*
* @param bool $includeEmpty Optional. Default false. Set to true to include empty file upload fields as errors.
* @return array
*/
public static function getErrorFiles ($includeEmpty = false)
{
self::processUploads();
$return = array();
foreach (self::$files as $field => $files) {
foreach ($files as $file) {
if (!$includeEmpty && $file->error == UPLOAD_ERR_NO_FILE) {
continue;
}
if (!$file->getSuccess()) {
$return[] = $file;
}
}
}
return $return;
}
}
// statically set default language vars - an app that needs to customize messages can do so after including this class (only needs to happen once)
UploadHandler::$i18n = array(
'UPLOADHANDLER_ERR_PROCESS_POST_SIZE' => 'POST size of %1$d bytes exceeds the limit set in php.ini#post_max_size of %2$d bytes.',
'UPLOADHANDLER_ERR_PROCESS_NO_INPUT' => 'No file input fields were detected in the POST request.',
'UPLOADHANDLER_ERR_MOVE_EXISTS' => 'Could not move uploaded file "%1$s" to "%2$s" as the destination file already exists and the overwrite option was not set.',
'UPLOAD_ERR_INI_SIZE' => 'The uploaded file exceeds the upload_max_filesize directive in php.ini.',
'UPLOAD_ERR_FORM_SIZE' => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.',
'UPLOAD_ERR_PARTIAL' => 'The uploaded file was only partially uploaded.',
'UPLOAD_ERR_NO_FILE' => 'No file was uploaded.',
'UPLOAD_ERR_NO_TMP_DIR' => 'Missing a temporary folder.',
'UPLOAD_ERR_CANT_WRITE' => 'Failed to write file to disk.',
'UPLOAD_ERR_EXTENSION' => 'File upload stopped by extension.',
);
// statically set some values that do not change throughout the lifetime of a request
UploadHandler::$contentLength = (int)@$_SERVER['CONTENT_LENGTH'];
UploadHandler::$maxPostSize = UploadHandler::iniBytes(ini_get('post_max_size'));
// store this for informational purposes only - php upload support will internally deny uploads which are over this size but client-side code can use this to advise of file size limits
UploadHandler::$uploadMaxFilesize = UploadHandler::iniBytes(ini_get('upload_max_filesize'));
// the lowest of both maxPostSize and uploadMaxFile size determines the maximum size of a single file upload (may not be accurate to the byte since there's some POST overhead if max POST size happens to be smaller than max file size)
UploadHandler::$maxUploadSize = min(UploadHandler::$uploadMaxFilesize, UploadHandler::$maxPostSize);
答案 0 :(得分：0)
尝试使用此代码替换它：
<?php
if (!defined('UPLOAD_ERR_EXTENSION')) {
// introduced in 5.1.2
define('UPLOAD_ERR_EXTENSION', 8);
}
class UploadHandlerException extends Exception { }
class UploadHandlerFileException extends UploadHandlerException { }
class UploadHandlerProcessException extends UploadHandlerException { }
class UploadHandlerProcessPostSizeException extends UploadHandlerProcessException { }
class UploadHandlerProcessNoInputException extends UploadHandlerProcessException { }
class UploadHandlerFileMoveException extends UploadHandlerFileException { }
class UploadHandlerFileMoveExistsException extends UploadHandlerFileMoveException { }
class UploadHandlerFileMoveNotWritableException extends UploadHandlerFileMoveException { }
/**
* Class for storing information about an uploaded file. Returned as a result of the various 'get' file methods in the UploadHandler class.
*
*/
class UploadHandlerFile {
/**
* Name of upload field in HTML form
*
* @var string
*/
public $fieldName;
/**
* Name of uploaded file from client system
*
* @var string
*/
public $name;
/**
* MIME type of uploaded file
*
* @var string
*/
public $type;
/**
* Full path and filename of temporary uploaded file
*
* @var string
*/
public $tmp_name;
/**
* Error code of uploaded file, if any
*
* @var int
*/
public $error;
/**
* Size of uploaded file, in bytes
*
* @var int
*/
public $size;
/**
* Indicates if the file has been moved out of the temp storage.
*
* @var bool
*/
private $moved = false;
/**
*
* @param string $fieldName Name of uploaded field in HTML form
* @param string $name Name of uploaded file from client system
* @param string $type MIME type of uploaded file
* @param string $tmp_name Full path and filename of temporary uploaded file
* @param int $error Error code of uploaded file, if any
* @param int $size Size of uploaded file, in bytes
* @return UploadHandlerFile
*/
public function __construct ($fieldName, $name, $type, $tmp_name, $error, $size)
{
$this->fieldName = $fieldName;
$this->name = $name;
$this->type = $type;
$this->tmp_name = $tmp_name;
$this->error = $error;
$this->size = $size;
}
/**
* Attempts to moves this uploaded file to the given destination folder, automatically using the client-provided filename.
*
* @param string $destination Folder to move the file to
* @param bool $overwrite Optional. Default true. If true, any existing destination file will be overwritten. If false, this will throw UploadHandlerFileMoveExistsException if the destination file exists.
* @return bool Returns true on success, otherwise false.
* @throws UploadHandlerFileMoveExistsException If the destination file exists and $overwrite is false.
*/
public function move ($destination, $overwrite = true)
{
// remove trailing slashes in the destination folder
$destination = rtrim($destination, '\/');
return $this->moveAs($destination . '/' . $this->name);
}
/**
* Attempted to move this uploaded file to the given destination folder with the given filename
*
* @param $destination Folder to move the file to
* @param bool $overwrite Optional. Default true. If true, any existing destination file will be overwritten. If false, this will throw UploadHandlerFileMoveExistsException if the destination file exists.
* @return bool Returns true if the file was moved otherwise false if the file was already moved or if is_uploaded_file check returns false. If a move was attempted but failed an exception will be thrown.
* @throws UploadHandlerFileMoveExistsException If the destination file exists and $overwrite is false.
* @throws UploadHandlerFileMoveNotWritableException If the destination file exists and is not writable.
*/
public function moveAs ($destination, $overwrite = true)
{
if ($this->moved || !is_uploaded_file($this->tmp_name)) {
return false;
}
if (file_exists($destination)) {
if (!$overwrite) {
throw new UploadHandlerFileMoveExistsException(sprintf(UploadHandler::$i18n['UPLOADHANDLER_ERR_MOVE_EXISTS'], $this->tmp_name, $destination));
}
if (!is_writable($destination)) {
throw new UploadHandlerFileMoveNotWritableException(sprintf(UploadHandler::$i18n['UPLOADHANDLER_ERR_MOVE_NOT_WRITABLE'], $this->tmp_name, $destination));
}
}
$result = @move_uploaded_file($this->tmp_name, $destination);
if (!$result) {
// checks are performed above to avoid this but move_uploaded_file can still fail since the calls are not atomic
throw new UploadHandlerFileMoveNotWritableException(sprintf(UploadHandler::$i18n['UPLOADHANDLER_ERR_MOVE_NOT_WRITABLE'], $this->tmp_name, $destination));
}
$this->moved = true;
return true;
}
/**
* Returns the extension of the uploaded file based on the client-side filename. Files with no extensions will return a blank string, files such as ".htaccess" will return "htaccess".
*
* @return string
*/
public function getExtension ()
{
// reverse the string, find the text before the first (formerly last) dot and return it
$reversed = strrev($this->name);
$dot = strpos($reversed, '.', 0);
if ($dot === false || $dot === 0) {
// no dot or dot is at end of filename
return '';
}
// reverse the extension and return it
return strrev(substr($reversed, 0, $dot));
}
/**
* Determines if the file was uploaded OK according to the error code.
*
* @return bool
*/
public function getSuccess ()
{
return ($this->error === 0);
}
/**
*
*
* @return string
*/
public function getErrorMessage ()
{
$messages = array(
UPLOAD_ERR_INI_SIZE => 'UPLOAD_ERR_INI_SIZE',
UPLOAD_ERR_FORM_SIZE => 'UPLOAD_ERR_FORM_SIZE',
UPLOAD_ERR_PARTIAL => 'UPLOAD_ERR_PARTIAL',
UPLOAD_ERR_NO_FILE => 'UPLOAD_ERR_NO_FILE',
UPLOAD_ERR_NO_TMP_DIR => 'UPLOAD_ERR_NO_TMP_DIR',
UPLOAD_ERR_CANT_WRITE => 'UPLOAD_ERR_CANT_WRITE',
UPLOAD_ERR_EXTENSION => 'UPLOAD_ERR_EXTENSION',
);
if (!isset($messages[$this->error])) {
return '';
}
return sprintf(UploadHandler::$i18n[$messages[$this->error]], $this->fieldName, $this->type, $this->tmp_name, $this->error, $this->size, $this->getExtension());
}
}
/**
* Generic file upload handler class with temporary file management, exception throwing and language-based error information
*
*/
class UploadHandler {
/**
* Whether or not uploaded files have been processed yet.
*
* @var bool
*/
protected static $_processed = false;
/**
* Default language text that can be changed by the app using this lib.
*
* @var array
*/
public static $i18n;
/**
* Content length specified in the POST request.
*
* @var int
*/
public static $contentLength;
/**
* Max post size specified in php.ini stored as a number in bytes
*
* @var int
*/
public static $maxPostSize;
/**
* Max post size specified in php.ini stored as a number in bytes
*
* @var int
*/
public static $uploadMaxFilesize;
/**
* Max uploadable file size based on max POST size and max upload file size
*
* @var int
*/
public static $maxUploadSize;
/**
* Storage for data about files that have been uploaded. Array will contain a set of UploadHandlerFile instances.
*
* @var array
*/
public static $files;
/**
* Takes a php.ini-like bytes-size string such as 2M and converts it to a number. G, M and K each represent a unit of 1024 bytes: http://php.net/ini_get
*
* @param string $val The value to convert
* @return int The result in bytes
*/
public static function iniBytes ($val)
{
$val = trim($val);
$scale = strtolower($val[strlen($val) - 1]);
$val = intval($val);
switch ($scale) {
case 'g':
$val *= 1024;
case 'm':
$val *= 1024;
case 'k':
$val *= 1024;
}
return $val;
}
/**
* Processes server and $_FILE info relating to uploads to produce usable info. Assigns all gathered data to class variables which are accessible via public methods.
*
* @return void
* @throws UploadHandlerProcessPostSizeException If the posted data size exceeds the maximum post size defined by php configuration
* @throws UploadHandlerProcessNoInputException If no files were uploaded
*/
public static function processUploads ()
{
if (self::$_processed) {
return;
}
self::$_processed = true;
self::$files = array();
if (self::$contentLength >= self::$maxPostSize) {
// post length exceeds maximum post length ini directive - impossible for php to parse uploaded files because $_FILES is empty
throw new UploadHandlerProcessPostSizeException(sprintf(self::$i18n['UPLOADHANDLER_ERR_PROCESS_POST_SIZE'], self::$contentLength, self::$maxPostSize));
}
if (empty($_FILES)) {
// no files uploaded
throw new UploadHandlerProcessNoInputException(self::$i18n['UPLOADHANDLER_ERR_PROCESS_NO_INPUT']);
}
foreach ($_FILES as $fieldName => $field) {
if (is_array($field['name'])) {
// input field that uses [] in it's name
self::$files[$fieldName] = array();
foreach ($field['name'] as $index => $ignoreThisValue) {
$name = $field['name'][$index];
$type = $field['type'][$index];
$tmp_name = $field['tmp_name'][$index];
$error = intval($field['error'][$index]);
$size = intval($field['size'][$index]);
$file = new UploadHandlerFile($fieldName, $name, $type, $tmp_name, $error, $size);
self::$files[$fieldName][] = $file;
}
} else {
// single input field
$name = $field['name'];
$type = $field['type'];
$tmp_name = $field['tmp_name'];
$error = intval($field['error']);
$size = intval($field['size']);
$file = new UploadHandlerFile($fieldName, $name, $type, $tmp_name, $error, $size);
self::$files[$fieldName] = array($file);
}
}
}
/**
* Returns a flat list of all uploaded files; whether successful or not
*
* @return array
*/
public static function getAllFiles ()
{
self::processUploads();
$return = array();
foreach (self::$files as $field => $files) {
foreach ($files as $file) {
$return[] = $file;
}
}
return $return;
}
/**
* Returns only a list of files that were uploaded successfully
*
* @return array
*/
public static function getUploadedFiles ()
{
self::processUploads();
$return = array();
foreach (self::$files as $field => $files) {
foreach ($files as $file) {
if ($file->getSuccess()) {
$return[] = $file;
}
}
}
return $return;
}
/**
* Returns only a list of files that were not uploaded successfully
*
* @param bool $includeEmpty Optional. Default false. Set to true to include empty file upload fields as errors.
* @return array
*/
public static function getErrorFiles ($includeEmpty = false)
{
self::processUploads();
$return = array();
foreach (self::$files as $field => $files) {
foreach ($files as $file) {
if (!$includeEmpty && $file->error == UPLOAD_ERR_NO_FILE) {
continue;
}
if (!$file->getSuccess()) {
$return[] = $file;
}
}
}
return $return;
}
}
// statically set default language vars - an app that needs to customize messages can do so after including this class (only needs to happen once)
UploadHandler::$i18n = array(
'UPLOADHANDLER_ERR_PROCESS_POST_SIZE' => 'POST size of %1$d bytes exceeds the limit set in php.ini#post_max_size of %2$d bytes.',
'UPLOADHANDLER_ERR_PROCESS_NO_INPUT' => 'No file input fields were detected in the POST request.',
'UPLOADHANDLER_ERR_MOVE_EXISTS' => 'Could not move uploaded file "%1$s" to "%2$s" as the destination file already exists and the overwrite option was not set.',
'UPLOAD_ERR_INI_SIZE' => 'The uploaded file exceeds the upload_max_filesize directive in php.ini.',
'UPLOAD_ERR_FORM_SIZE' => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.',
'UPLOAD_ERR_PARTIAL' => 'The uploaded file was only partially uploaded.',
'UPLOAD_ERR_NO_FILE' => 'No file was uploaded.',
'UPLOAD_ERR_NO_TMP_DIR' => 'Missing a temporary folder.',
'UPLOAD_ERR_CANT_WRITE' => 'Failed to write file to disk.',
'UPLOAD_ERR_EXTENSION' => 'File upload stopped by extension.',
'UPLOADHANDLER_ERR_MOVE_NOT_WRITABLE' => 'File not writable.'
);
// statically set some values that do not change throughout the lifetime of a request
UploadHandler::$contentLength = (int)@$_SERVER['CONTENT_LENGTH'];
UploadHandler::$maxPostSize = UploadHandler::iniBytes(ini_get('post_max_size'));
// store this for informational purposes only - php upload support will internally deny uploads which are over this size but client-side code can use this to advise of file size limits
UploadHandler::$uploadMaxFilesize = UploadHandler::iniBytes(ini_get('upload_max_filesize'));
// the lowest of both maxPostSize and uploadMaxFile size determines the maximum size of a single file upload (may not be accurate to the byte since there's some POST overhead if max POST size happens to be smaller than max file size)
UploadHandler::$maxUploadSize = min(UploadHandler::$uploadMaxFilesize, UploadHandler::$maxPostSize);