$newcontent = wp_unslash( $_POST['newcontent'] );
$location = 'theme-editor.php?file=' . urlencode( $relative_file ) . '&theme=' . urlencode( $stylesheet ) . '&scrollto=' . $scrollto;
if ( is_writeable( $file ) ) {
$newcontent = wp_unslash( $_POST['newcontent'] );
$location = 'theme-editor.php?file=' . urlencode( $relative_file ) . '&theme=' . urlencode( $stylesheet ) . '&scrollto=' . $scrollto;
if ( is_writeable( $file ) ) {