save barcode image in require directory php -

i working on barcode project in php. issue when click test.php, barcode image save in same directory php file directory:

/demo1/demo2/demo3/demo4/file1/file2/file3/barcodeimage.png /demo1/demo2/demo3/demo4/file1/file2/file3/test.php 

but need save barcodeimage.png in path:

/demo1/demo2/demo3/demo4/image1/image2/image3/barcodeimage.png 

i change directory name convenience

here code:

<?php $codetexttwo = '1234567890.png'; $drawexception = null; try {     $color_black = new bcgcolor(0, 0, 0);     $color_white = new bcgcolor(255, 255, 255);      $code_generated = new $classname();      if (function_exists('basecustomsetup')) {         basecustomsetup($code_generated, $default_valuetwo);     }      if (function_exists('customsetup')) {         customsetup($code_generated, $default_valuetwo);     }      $code_generated->setscale(max(1, min(4, $default_valuetwo['scale'])));     $code_generated->setbackgroundcolor($color_white);     $code_generated->setforegroundcolor($color_black);      if ($default_valuetwo['texttwo'] !== '') {         $text = converttext($default_valuetwo['texttwo']);         $code_generated->parse($text);     }  } catch(exception $exception) {     $drawexception = $exception; } $filenamebctwo = $codetexttwo.".png";  $drawing = new bcgdrawing($filenamebctwo, $color_white);   if($drawexception) {     $drawing->drawexception($drawexception); } else {     $drawing->setbarcode($code_generated);     $drawing->setrotationangle($default_valuetwo['rotation']);     $drawing->setdpi($default_valuetwo['dpi'] === 'null' ? null : max(72, min(300, intval($default_valuetwo['dpi']))));     $drawing->draw(); $drawing->finish(); }  $drawing->finish($filetypes[$default_valuetwo['filetype']]);  ?> 

change line:

$filenamebctwo = $codetexttwo.".png"; 

to this:

$filenamebctwo = '/demo1/demo2/demo3/demo4/image1/image2/image3/' . $codetexttwo.".png"; 

check folder permission directory also