<?php
/**
*
* Author: CodexWorld
* Function Name: cwUpload()
* $field_name => Input file field name.
* $target_folder => Folder path where the image will be uploaded.
* $file_name => Custom thumbnail image name. Leave blank for default image name.
* $thumb => TRUE for create thumbnail. FALSE for only upload image.
* $thumb_folder => Folder path where the thumbnail will be stored.
* $thumb_width => Thumbnail width.
* $thumb_height => Thumbnail height.
*
**/
function cwUpload($field_name = 'upload-inv', $target_folder = 'uploads/profiles/', $file_name = '', $thumb = TRUE, $thumb_folder = 'uploads/profiles/avatar/', $thumb_width = '255', $thumb_height = '250'){

    //folder path setup
    $target_path = $target_folder;
    $thumb_path = $thumb_folder;

    //file name setup
    $filename_err = explode(".",$_FILES[$field_name]['name']);
    $filename_err_count = count($filename_err);
    $file_ext = $filename_err[$filename_err_count-1];
    if($file_name != ''){
        $fileName = $file_name.'.'.$file_ext;
    }else{
        $fileName = $_FILES[$field_name]['name'];
    }

    //upload image path
    $upload_image = $target_path.basename($fileName);

    //upload image
    if(move_uploaded_file($_FILES[$field_name]['tmp_name'],$upload_image))
    {
        //thumbnail creation
        if($thumb == TRUE)
        {
            $thumbnail = $thumb_path.$fileName;
            list($width,$height) = getimagesize($upload_image);
            $thumb_create = imagecreatetruecolor($thumb_width,$thumb_height);
            switch($file_ext){
                case 'jpg':
                    $source = imagecreatefromjpeg($upload_image);
                    break;
                case 'jpeg':
                    $source = imagecreatefromjpeg($upload_image);
                    break;

                case 'png':
                    $source = imagecreatefrompng($upload_image);
                    break;
                case 'gif':
                    $source = imagecreatefromgif($upload_image);
                    break;
                default:
                    $source = imagecreatefromjpeg($upload_image);
            }

            imagecopyresized($thumb_create,$source,0,0,0,0,$thumb_width,$thumb_height,$width,$height);
            switch($file_ext){
                case 'jpg' || 'jpeg':
                    imagejpeg($thumb_create,$thumbnail,100);
                    break;
                case 'png':
                    imagepng($thumb_create,$thumbnail,100);
                    break;

                case 'gif':
                    imagegif($thumb_create,$thumbnail,100);
                    break;
                default:
                    imagejpeg($thumb_create,$thumbnail,100);
            }

        }

        return $fileName;
    }
    else
    {
        return false;
    }
}
?>