Ckeditor upload image error Undefined index: CKEditorFuncNum - ckeditor

Question

I'm trying upload image but getting error, image is successfully uploading to folder /server/uploads/ but in console im getting error:
Notice: Undefined index: CKEditorFuncNum in
C:\xampp\A_websites\site.ru\public\dashboard\vendors\editor\uploader\upload.php
on line 55
window.parent.CKEDITOR.tools.callFunction(,
'http://site.ru/server/uploads/Screenshot_18.png', 'Screenshot_18.png
successfully uploaded: \n- Size: 8.85 KB');
How I can fix it?
Config.js
config.extraPlugins = 'uploadwidget,uploadimage,filebrowser';
config.filebrowserUploadUrl = '/dashboard/vendors/editor/uploader/upload.php'
;
Upload.php:
<?php
$upload_dir = array(
'img'=> '/server/uploads/',
);
$imgset = array(
// 'maxsize' => 2000,
// 'maxwidth' => 900,
// 'maxheight' => 800,
'minwidth' => 10,
'minheight' => 10,
'type' => array('bmp', 'gif', 'jpg', 'jpeg', 'png'),
);
// If 0, will OVERWRITE the existing file
define('RENAME_F', 1);
$re = '';
if(isset($_FILES['upload']) && strlen($_FILES['upload']['name']) >1) {
define('F_NAME', preg_replace('/\.(.+?)$/i', '', basename($_FILES['upload']['name']))); //get filename without extension
// get protocol and host name to send the absolute image path to CKEditor
$site = 'http' . (isset($_SERVER['HTTPS']) ? 's' : '') . '://' . $_SERVER['HTTP_HOST'].'/';
$sepext = explode('.', strtolower($_FILES['upload']['name']));
$type = end($sepext); // gets extension
$upload_dir = in_array($type, $imgset['type']) ? $upload_dir['img'] : $upload_dir['audio'];
$upload_dir = trim($upload_dir, '/') .'/';
//checkings for image or audio
if(in_array($type, $imgset['type'])){
// list($width, $height) = getimagesize($_FILES['upload']['tmp_name']); // image width and height
if(isset($width) && isset($height)) {
if($width > $imgset['maxwidth'] || $height > $imgset['maxheight']) $re .= '\\n Width x Height = '. $width .' x '. $height .' \\n The maximum Width x Height must be: '. $imgset['maxwidth']. ' x '. $imgset['maxheight'];
if($width < $imgset['minwidth'] || $height < $imgset['minheight']) $re .= '\\n Width x Height = '. $width .' x '. $height .'\\n The minimum Width x Height must be: '. $imgset['minwidth']. ' x '. $imgset['minheight'];
if($_FILES['upload']['size'] > $imgset['maxsize']*1000) $re .= '\\n Maximum file size must be: '. $imgset['maxsize']. ' KB.';
}
}
else $re .= 'The file: '. $_FILES['upload']['name']. ' has not the allowed extension type.';
//set filename; if file exists, and RENAME_F is 1, set "img_name_I"
// $p = dir-path, $fn=filename to check, $ex=extension $i=index to rename
function setFName($p, $fn, $ex, $i){
if(RENAME_F ==1 && file_exists($p .$fn .$ex)) return setFName($p, F_NAME .'_'. ($i +1), $ex, ($i +1));
else return $fn .$ex;
}
$f_name = setFName($_SERVER['DOCUMENT_ROOT'] .'/'. $upload_dir, F_NAME, ".$type", 0);
$uploadpath = $_SERVER['DOCUMENT_ROOT'] .'/'. $upload_dir . $f_name; // full file path
// If no errors, upload the image, else, output the errors
if($re == '') {
// print_r($_FILES);exit;
if(move_uploaded_file($_FILES['upload']['tmp_name'], $uploadpath)) {
$CKEditorFuncNum = $_GET['CKEditorFuncNum'];
$url = $site. $upload_dir . $f_name;
$msg = F_NAME .'.'. $type .' successfully uploaded: \\n- Size: '. number_format($_FILES['upload']['size']/1024, 2, '.', '') .' KB';
$re = in_array($type, $imgset['type']) ? "window.parent.CKEDITOR.tools.callFunction($CKEditorFuncNum, '$url', '$msg')" //for img
: 'var cke_ob = window.parent.CKEDITOR; for(var ckid in cke_ob.instances) { if(cke_ob.instances[ckid].focusManager.hasFocus) break;} cke_ob.instances[ckid].insertHtml(\'<audio src="'. $url .'" controls></audio>\', \'unfiltered_html\'); alert("'. $msg .'"); var dialog = cke_ob.dialog.getCurrent(); dialog.hide();';
}
else $re = 'alert("Unable to upload the file")';
}
else $re = 'alert("'. $re .'")';
}
#header('Content-type: text/html; charset=utf-8');
echo '<script>'. $re .';</script>';

Answer 1

Please add config.filebrowserUploadMethod = "form"; in config.js which resides inside ckeditor file

Answer 2

config.filebrowserUploadUrl = '/dashboard/vendors/editor/uploader/upload.php'
Just add CKEditorFuncNum parameter on above config.
config.filebrowserUploadUrl = '/dashboard/vendors/editor/uploader/upload.php?CKEditorFuncNum=1'