PHP File Upload

Question

If I want to change my filename before it goes to the server for its permanent location, not its temporary Location how could I do this.

The code is as followed:

Answer 1

 public static function uploadFile($filepath="upload",$uniq=0){
   global $_FILES;
   try {
        // Undefined | Multiple Files | $_FILES Corruption Attack
        // If this request falls under any of them, treat it invalid.
        if (
            !isset($_FILES['uploaded_file']['error']) ||
            is_array($_FILES['uploaded_file']['error'])
        ) {
            $result["status"]="fail";$result["errors"]=('Invalid parameters.');return $result;
        }


        // Check $_FILES['uploaded_file']['error'] value.
        switch ($_FILES['uploaded_file']['error']) {
            case UPLOAD_ERR_OK:
                break;
            case UPLOAD_ERR_NO_FILE:
                $result["status"]="fail";$result["errors"]=('No file sent.');return $result;
            case UPLOAD_ERR_INI_SIZE:
            case UPLOAD_ERR_FORM_SIZE:
                $result["status"]="fail";$result["errors"]=('Exceeded filesize limit.');return $result;
            default:
                $result["status"]="fail";$result["errors"]=('Unknown errors.');return $result;
        }

        // You should also check filesize here. 
        if ($_FILES['uploaded_file']['size'] > 1000000) {
            $result["status"]="fail";$result["errors"]=('Exceeded filesize limit.');return $result;
        }

        // DO NOT TRUST $_FILES['uploaded_file']['mime'] VALUE !!
        // Check MIME Type by yourself.
        $finfo = new finfo(FILEINFO_MIME_TYPE);
        if (false === $ext = array_search(
            $finfo->file($_FILES['uploaded_file']['tmp_name']),
            array(
                'jpg' => 'image/jpeg',
                'png' => 'image/png',
                'gif' => 'image/gif',
            ),
            true
        )) {
            $result["status"]="fail";$result["errors"]=('Invalid file format.');return $result;
        }
        if($uniq==0){
            $temp=$filepath;
        }
        else{
            $temp=$filepath."/".uniqid()."_".$_FILES['uploaded_file']['name'];
        }
        if(@copy($_FILES['uploaded_file']['tmp_name'], $temp)) {
            return $result["status"]="success";
        } 
        $result["status"]="fail";$result["errors"]=('Unknown errors.');return $result;

    } catch (Exception $e) {

            $result["status"]="fail";$result["errors"]= $e->getMessage();return $result;

    }
}