[SOLVED] function variable problems-this might take a while

[Pudgemeister]

yes...tis me again...hello all *dodges rotten tomatoes*

 

i got probs *surprise surprise*

 

first of all here is the code:

 

<?php

$research_levels_query = "SELECT * FROM research WHERE username = '$username' AND password = '$password'";
$activate_query = mysql_query($research_levels_query) or die(mysql_error());
$research_levels = mysql_fetch_assoc($activate_query) or die(mysql_error());

//base build times for all vehicles in seconds//
$light_ore_miner_base_build_time = 600;
$light_fuel_miner_base_build_time = 720;
$light_crystal_miner_base_build_time = 900;
$light_wood_farmer_base_build_time = 660;
$light_wave_sub_base_build_time = 840;
$light_atmospheric_filterer_base_build_time = 960;
$medium_ore_miner_base_build_time = 3000;
$medium_fuel_miner_base_build_time = 3420;
$medium_crystal_miner_base_build_time = 3900;
$medium_wood_farmer_base_build_time = 3300;
$medium_wave_sub_base_build_time = 3540;
$medium_atmospheric_filterer_base_build_time = 4020;
$heavy_ore_miner_base_build_time = 7800;
$heavy_fuel_miner_base_build_time = 8400;
$heavy_crystal_miner_base_build_time = 9000;
$heavy_wood_farmer_base_build_time = 8100;
$heavy_wave_sub_base_build_time = 8700;
$heavy_atmospheric_filterer_base_build_time = 9600;

//----------------------------------------------CREATE FUNCTION------------------------------------------------------------//
function vehicle_build_times($vehicle_base_build_time,$research_level)
{
    if ($research_level >= 1)
	{
        $vehicle_build_time = $research_level - (5 * ($vehicle_base_build_time / 100));
	}
	else
	{
	    $vehicle_build_time = $vehicle_base_build_time;
    }
	return $vehicle_build_time;
}
//-------------------------------------------------------------------------------------------------------------------------//


//-----------------------------------------------------ECONOMIC VEHICLE BUILD TIME FUNCTIONS--------------------------------------------------//

//Light Ore Miner//
$light_ore_miner_build_time = vehicle_build_times($light_ore_miner_base_build_time,$research_levels['simple_ore_drill_turbines']);
//---------------//

//Light Fuel Miner//
$light_fuel_miner_build_time = vehicle_build_times($light_fuel_miner_base_build_time,$research_levels['simple_fuel_drill_turbines']);
//----------------//

//Light Crystal Miner//
$light_crystal_miner_build_time = vehicle_build_times($light_crystal_miner_base_build_time,$research_levels['simple_crystal_drill_turbines']);
//-------------------//

//Light Wood Farmer//
$light_wood_farmer_build_time = vehicle_build_times($light_wood_farmer_base_build_time,$research_levels['simple_farm_fertilisation']);
//-----------------//

//Light Wave Sub//
$light_wave_sub_build_time = vehicle_build_times($light_wave_sub_base_build_time,$research_levels['simple_wave_turbines']);
//--------------//

//Light Atmospheric Filterer//
$light_atmospheric_filterer_build_time = vehicle_build_times($light_atmospheric_filterer_base_build_time,$research_levels['simple_atmospheric_filter_enlarger']);
//--------------------------//

//Medium Ore Miner//
$medium_ore_miner_build_time = vehicle_build_times($medium_ore_miner_base_build_time,$research_levels['advanced_ore_drill_turbines']);
//---------------//

//Medium Fuel Miner//
$medium_fuel_miner_build_time = vehicle_build_times($medium_fuel_miner_base_build_time,$research_levels['advanced_fuel_drill_turbines']);
//----------------//

//Medium Crystal Miner//
$medium_crystal_miner_build_time = vehicle_build_times($medium_crystal_miner_base_build_time,$research_levels['advanced_crystal_drill_turbines']);
//-------------------//

//Medium Wood Farmer//
$medium_wood_farmer_build_time = vehicle_build_times($medium_wood_farmer_base_build_time,$research_levels['advanced_farm_fertilisation']);
//-----------------//

//Medium Wave Sub//
$medium_wave_sub_build_time = vehicle_build_times($medium_wave_sub_base_build_time,$research_levels['advanced_wave_turbines']);
//--------------//

//Medium Atmospheric Filterer//
$medium_atmospheric_filterer_build_time = vehicle_build_times($medium_atmospheric_filterer_base_build_time,$research_levels['advanced_atmospheric_filter_enlarger']);
//--------------------------//

//Heavy Ore Miner//
$heavy_ore_miner_build_time = vehicle_build_times($heavy_ore_miner_base_build_time,$research_levels['hi_tech_ore_drill_turbines']);
//---------------//

//Heavy Fuel Miner//
$heavy_fuel_miner_build_time = vehicle_build_times($heavy_fuel_miner_base_build_time,$research_levels['hi_tech_fuel_drill_turbines']);
//----------------//

//Heavy Crystal Miner//
$heavy_crystal_miner_build_time = vehicle_build_times($heavy_crystal_miner_base_build_time,$research_levels['hi_tech_crystal_drill_turbines']);
//-------------------//

//Heavy Wood Farmer//
$heavy_wood_farmer_build_time = vehicle_build_times($heavy_wood_farmer_base_build_time,$research_levels['hi_tech_farm_fertilisation']);
//-----------------//

//Heavy Wave Sub//
$heavy_wave_sub_build_time = vehicle_build_times($heavy_wave_sub_base_build_time,$research_levels['hi_tech_wave_turbines']);
//--------------//

//Heavy Atmospheric Filterer//
$heavy_atmospheric_filterer_build_time = vehicle_build_times($heavy_atmospheric_filterer_base_build_time,$research_levels['hi_tech_atmospheric_filter_enlarger']);
//--------------------------//

//------------------------------------------------------------------------------------------------------------------------------------------------//




//CREATE UPDATE VEHICLE QUE FUNCTION//
function update_vehicle_que($vehicle,)
{
    //query to add the que'd vehicles and added to que light_ore_miner's together and put into the database
    $add_to_que = "UPDATE vehicle_construct_amount SET $vehicle = '$light_ore_miner' WHERE username='$username' AND password='$password'";
    //get the current timestamp
    $current_timestamp = time();
    //If There are currently 0 of this certain vehicle in the que for build-add them
    if ($fetch_timestamp['$vehicle'] == 0)
    {
	    $add_date_and_time = "UPDATE vehicle_construct_seconds SET $vehicle = '$current_timestamp' WHERE username = '$username' AND password = '$password'";
			mysql_query($add_date_and_time) or die(mysql_error());
			mysql_query($add_to_que) or die(mysql_error());
	}
	else
	{
			//find out how many seconds has passed while they have been in the que
			$seconds_since = time() - $fetch_timestamp['$vehicle'];
			//work out how many could have been created
			$available_construction = $seconds_since / $'$vehicle'_build_time;
			//if all the que'd selected vehicle have finished-update the tables
			if ($available_construction > $grabbed_vehicles_construction_amounts['$vehicle'])
			{
			    //end the vehicle que
					$update_que = "UPDATE vehicle_construct_amount SET $vehicle = '0' WHERE username = '$username' AND password = '$password'";
					//reset the timestamp
					$update_timestamp = "UPDATE vehicle_construct_seconds SET $vehicle = '0' WHERE username = '$username' AND password = '$password'";
					//add current selected vehicles to already built light_ore_miners
					$total_'$vehicle' = $grabbed_vehicle_amounts['$vehicle'] + $grabbed_vehicles_construction_amounts['$vehicle'];
					//query to update the vehicles table with the new created current vehicle amount
					$update_vehicles = "UPDATE vehicle_amounts SET $vehicle = '$total_'$vehicle'' WHERE username = '$username' AND password = '$password'";
					//activate the queries
					mysql_query($update_vehicles) or die(mysql_error());
					mysql_query($update_que) or die(mysql_error());
					mysql_query($update_timestamp) or die(mysql_error());
			}
			else
			{
          //take off any remainder from end result of the above processes
		      $sums_remainder = $available_construction - floor($available_construction);
		      $available_build = $available_construction - $sums_remainder;
					if ($available_build >= 1)
					{
					    //update current vehicle que
							if ($grabbed_vehicles_construction_amounts['$vehicle'] >= 1)
							{
							    $grabbed_'$vehicle' = $grabbed_vehicles_construction_amounts['$vehicle'] - $available_build;
									//put into query
									'$vehicle'_update = "UPDATE vehicle_construct_amount SET $vehicle = '$grabbed_'$vehicle'' WHERE username = '$username' AND password = '$password'";
									mysql_query('$vehicle'_update) or die(mysql_error());
						  }
							//add ready current vehicles to list of already constructed
						  $constructed_'$vehicle' = $grabbed_vehicle_amounts['$vehicle'] + $available_construction;
						  //put this into query
						  $update_table = "UPDATE vehicle_amount SET $vehicle = '$constructed_'$vehicle'' WHERE username = '$username' AND password = '$password'";
							//make a new timestamp including the remainder for the current vehicle in production
							$timestamp_remainder = $sums_remainder * 600;
							$required_timestamp = time() - $timestamp_remainder;
							//put into query
							$insert_timestamp = "UPDATE vehicle_construct_seconds SET $vehicle = '$required_timestamp' WHERE username = '$username' AND password = '$password'";
							//activate queries
							mysql_query($update_table) or die(mysql_error());
							mysql_query($insert_timestamp) or die(mysql_error());
            }
        }  
    }
}
?>

 

now if i can explain this right u may b able to help me

 

as u can see it is a game i am making

 

neway-the prob is im trying to use the $vehicle variable to make the names of other variables inside the function e.g. $'$vehicle'_build_time

 

obviously ive found out that this doesn't work unfortunately

 

is there any way of doing what i wana do in php? or is it much more complicated than what im trying to do?

 

cheers

 

Pudgemeister

[kenrbnsn]

Take a look at variable variables.

 

Ken

[Pudgemeister]

aha ty u found what i couldnt

 

i shall begin testing this but this topic isn't solved yet as tehre are many more probs (im guessin) with this code

[Pudgemeister]

ok ive replaced any of those stupid lookin $'$vehicle'_build_time variables with ${$vehicle}_build_time variable names

 

according to the info page you gave me (which is now bookmarked-tyvm) this should be correct

 

im still getting the same error :S

 

the error is:

 

Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting T_VARIABLE or '$' in C:\wamp\www\game\vehicles\vehicle_build_times.inc.php on line 141

 

i even get that error with a simple variable in place of the variable variable.

 

i can't see the problem :S whats up?

[kenrbnsn]

Please repost the lines where the error is occurring.

 

Ken

[Pudgemeister]

atm it's starting at the first line where im trying to use a variable variable

 

$available_construction = $seconds_since / ${$vehicle}_build_time;

 

is now in place of $available_construction = $seconds_since / $'$vehicle'_build_time;

 

and it's the same for other places like that

[kenrbnsn]

The problem is in how your constructing the variable name, try this:

<?php
$available_construction = $seconds_since / ${$vehicle . '_build_time'};
?>

 

Ken

[Pudgemeister]

stil getting:

 

Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting T_VARIABLE or '$' in C:\wamp\www\game\vehicles\vehicle_build_times.inc.php on line 141

[kenrbnsn]

I tested my suggestion with

<?php
$seconds_since = 58;
$vehicle = 'jeep';
${$vehicle . '_build_time'} = 3;
$available_construction = $seconds_since / ${$vehicle . '_build_time'};
echo $available_construction;
?>

 

and it worked fine. The error must be referring to something else.

 

Ken

[Pudgemeister]

hmmmmm thats weird-im gona go over everythin now-il message again for other probs or if this stil isnt fixed :S

 

i shal also try the way u tested-ty for your continued help

[Pudgemeister]

umm ok sumit weird is happenin here now :S

 

ive just done sum testing and i tihnk sumit is up wid my wamp package or sumthin

 

cus when I do:

 

<?php

 

$test = 'test';

echo $test;

 

?>

 

im getin no output!

 

this is slightly worrying-have a made a very stupid mistake sumwhere

[Pudgemeister]

wtf??

 

now everythin is workin and that solution u gave me works fine

 

i think my wamp server has had sumit up wid it for a while but hey i aint complainin-ur solution works now

 

cheers

 

keeping topic undolved cus the function aint complete yet

 

Pudgemeister