ReplaceCellNum(oldph, newph)
{
    new File: file2 = fopen("tmpNumberList.cfg", io_write);
    print("1");
    new number;
    new string[512];
    new PHList[256];
    format(string, sizeof(string), "%d\r\n", newph);
    print("2");
    fwrite(file2, string);
    print("3");
    fclose(file2);
    print("4");
    file2 = fopen("tmpNumberList.cfg", io_append);
    print("5");
    new File: file = fopen("NumberList.cfg", io_read);
    print("6");
    while(fread(file, string))
	{
	    print("6.1");
        strmid(PHList, string, 0, strlen(string)-1, 255);
        print("7");
        number = strval(PHList);
        print("8");
    	if (number != oldph)
		{
            format(string, sizeof(string), "%d\r\n", number);
            print("9");
        	fwrite(file2, string);
        	print("10");
    	}
    }
    print("11");
    fclose(file);
    print("12");
    fclose(file2);
    print("13");
    file2 = fopen("NumberList.cfg", io_write);
    print("14");
    file = fopen("tmpNumberList.cfg", io_read);
    print("15");
	while(fread(file, string))
	{
	    print("16");
        strmid(PHList, string, 0, strlen(string)-1, 255);
        print("17");
        number = strval(PHList);
        print("18");
        if (number != oldph)
		{
		    print("19");
            format(string, sizeof(string), "%d\r\n", number);
            print("20");
        	fwrite(file2, string);
        	print("21");
    	}
    }
    print("22");
    fclose(file);
    print("23");
    fclose(file2);
    print("24");
	fremove("tmpNumberList.cfg");
	print("25");
	printf("ph %d replaced with ph %d in NumberList.cfg", oldph, newph);
	return 1;
}