php - redirect after image uploaded with imagecreatefromjpeg -


i'm trying use gd library crop , upload image. upload image first server , save url image pass following script reads original uploaded image , crops according coordinate give it. 

<?php     $w = $h = 150;    $quality = 90;     $src = $_post['path'];    $img = imagecreatefromjpeg($src);    $kak = imagecreatetruecolor( $w, $h );    imagecopyresampled($kak,$img,0,0,$_post['x'],$_post['y'],    $w,$h,$_post['w'],$_post['h']);     header('content-type: image/jpeg');    imagejpeg($kak,'c.jpg',$quality);    imagedestroy($img); ?>

all works fine, image upload, crop , cropped image upload. problem page empty , redirect visitor different page if add

header ("location: nextpage.php");

at end of php script redirects before finishing uploading. know how once file has been uploaded successfully?

thanks in advance


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