Código PHP:
include ("config.php");
$borrar="if ($Ship == 203 or $Ship == 204 or $Ship == 209";
$cadena=join("",file("GeneralFunctions.php"));
$cadena=str_replace($borrar,"if ($Ship == 203 or $Ship == 204 or $Ship == 209 or $Ship == "."$numero"." ",$cadena);
file_put_contents("GeneralFunctions.php",$cadena);
echo ("67% Completado" );
echo ("<br />"."Hemos terminado de modificar el GeneralFunctions.php, ¿fue rapidito no? xD , espera un momento...");
echo ("<meta http-equiv=\"Refresh\" content=\"1;url=dddddd.php\">");