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Help with session variables plz

Gheeda

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fortnox007 Regular Member

fortnox007

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Posted

Well there are quite some tutorials online. but here is something.

 

At the top of each script you want to use a session variable  place 

<?php session_start(); ?>

This must be at the TOP of your page.

 

giving a value to a session variable (almost like a $_POST var)  

<?php  $_SESSION['moo'] = 'I am a monkey'; ?>

ON another page you just place:

 

<?php  
   echo $_SESSION['moo']; //or
   $string = $_SESSION['moo'];
   echo $string;
?>

 

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Gheeda Newbie

Gheeda

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Hmm...no error but I dont see the data sticking. Do i have to place this code in a particular place? Like...within my submit button? Heres currently whats going on

 

-Battle.php has a dropdown menu of user specific spells....I need (on submit) for the selected spell 'id' to be placed into a session variable so my attack.php can pick up on it.

 

Of course I'm fetching my user spells with a row query...$sid is to = $row[1] and Session to = $sid....but only the selected spell..No matter what I do I cant get the submit data to anything...

 

Thoughts?

 

 

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fortnox007 Regular Member

fortnox007

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well if a you are using a submit button the variables are going to be sent via the post variable. (if you use method post)

 

So in case you have 2 files an index.php with the form and a submit button. And a form action to functionality.php.

 

in functionality.php you retrieve the sent variable by asking for the $_POST variable:

Like"

<?php session_start(); ?> <!-- ON TOP ABOVE EVERYTHING!!! -->

 

in the <body>

<?php $_SESSION['my_session_string'] = $_POST['string_or_any_value']; ?>

 

 

Also read this tutorial (http://w3schools.com/php/php_forms.asp) please, and post your code please.

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Gheeda Newbie

Gheeda

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well if a you are using a submit button the variables are going to be sent via the post variable. (if you use method post)

 

So in case you have 2 files an index.php with the form and a submit button. And a form action to functionality.php.

 

in functionality.php you retrieve the sent variable by asking for the $_POST variable:

Like"

<?php session_start(); ?> // ON TOP ABOVE EVERYTHING!!!

 

in the <body>

<?php $_SESSION['my_session_string'] = $_POST['string_or_any_value']; ?>

 

 

Also read this tutorial (http://w3schools.com/php/php_forms.asp) please, and post your code please.

 

Still no luck. The below pages are gonna be messy because I've been trying stuff out on em' constantly....all efforts fruitless.

 

battle.php

<?php
include_once 'connect.php';
session_start();

include_once 'logo.php';
?>
<link href="style.css" rel="stylesheet" type="text/css" />
<div id="login2" div align="center">


<?php




if (isset($_SESSION['player']))
{
  $player=$_SESSION['player'];
}
else
{
  echo "Not Logged in <br><br> <A href='login.php'>Login</a>";
  exit;
}
?>
</div>
<?php
$playerinfo="SELECT * from players where name='$player'";
$playerinfo2=mysql_query($playerinfo) or die("could not get player stats!");
$playerinfo3=mysql_fetch_array($playerinfo2);

include_once 'statpanel.php';

$pid = $playerinfo3['id'];
$name = $playerinfo3['name'];
$playerhp = $playerinfo3['hpoints'];
$playerattack = $playerinfo3['attack'];
$playerdefense = $playerinfo3['defense'];

if ($playerhp < 1)
{
  echo "You are dead!" ;
  echo "<br><a href='inn.php>Heal at the lake";
  exit;
}
?>
<div id="table">

<?php

if (isset($_GET['randid']))
{
   $randid=$_GET['randid'];
   $iteminfo="SELECT * from inventory where randid='$randid' AND id ='$pid'";
$iteminfo2=mysql_query($iteminfo) or die("could not get item stats!");
$iteminfo3=mysql_fetch_array($iteminfo2);

if (!$iteminfo3['name'])
{
}
else
{

$iname = $iteminfo3['name'];
$stats = $iteminfo3['stats'];
$statadd = $iteminfo3['statadd'];
$type = $iteminfo3['type'];

if ($type == "healing")
{
   $newhp = $statadd + $playerhp;
   if ($newhp > $playerinfo3['maxhp'])
   {
    $newhp = $playerinfo3['maxhp'];
   }
    $updateplayer="update players set hpoints='$newhp' where id='$pid'";
  mysql_query($updateplayer) or die("Could not update player");

    $updateitem="DELETE from inventory where id='$pid' AND randid='$randid' limit 1";
  mysql_query($updateitem) or die("Could not delete item");
   
   $playerhp = $newhp;

  echo "Used " . $iname . " and recovered " . $statadd . ".<br>";
}

}}





$creature = $playerinfo3['creature'];
if ($creature != 0)
{
$creatureinfo="SELECT * from creatures where id='$creature'";
$creatureinfo2=mysql_query($creatureinfo) or die("could not get the creature you were fighting!");
$creatureinfo3=mysql_fetch_array($creatureinfo2);

}
else
{
  $creatureinfo="SELECT * from creatures order by rand() limit 1";
$creatureinfo2=mysql_query($creatureinfo) or die("could get a creature!");
$creatureinfo3=mysql_fetch_array($creatureinfo2);
$cid = $creatureinfo3['id'];
$updateplayer="update players set creature='$cid' where name='$name'";
  mysql_query($updateplayer) or die("Could not update player");
}

$creature = $creatureinfo3['name'];
$creaturehp = $creatureinfo3['hpoints'];
$creatureattack = $creatureinfo3['attack'];
$creaturedefense = $creatureinfo3['defense'];



?>
</div>
<div id="player">
<?php
/////player info
echo "<u> " . $playerinfo3['name'] . "</u><br>";
echo "Hit points = " . $playerhp . "<br>";
echo "Attack = " . $playerattack . "<br>";
echo "Defense = " . $playerdefense . "<br><br><br>";
?>
</div>
<div id="creature">
<img src="images/<?php echo $creatureinfo3['imgurl'];?>" <br>
<?php
///////creature info

echo "<u> " . $creatureinfo3['name'] . "</u><br>";
echo "Hit points = " . $creaturehp . "<br>";
echo "Attack = " . $creatureattack . "<br>";
echo "Defense = " . $creaturedefense . "<br><br><br>";
?>
</div>

<div id="options">
<?php
echo "<a href='attack.php'>Attack</a>";
echo "<br><a href='usemagic.php'>Use Magic</a>";
echo "<br><a href='useitem.php'>Use Item</a>";
echo "<br><a href='index.php'>Exit Arena</a>";


?>
</div>

<div id="logout">
<?php
echo "<br><a href='logout.php'><img src='images/logout.gif' border='0'></a>";
?>
</div>
<div id="skillselect">
<?php
$playerid = $playerinfo3['id'];

//Next line assumes that each player may have more than one skill in the "skills"
//...table with their player ID, thus returning more than 1 result
if ($skillresult = mysql_query("SELECT * FROM playermagic WHERE pid='$playerid'")) {
  echo "<form action='attack.php' method=post>";
    echo '<select name="skills">';
    echo "<option value=>*Select a Skill*</option>";
    while ($row = mysql_fetch_row($skillresult)) {

          //Next line assumes that the name of the skill is in the first column of the "skills" table.
          //If it is not, just modify the number. For example, if the name of the skill is in the
          //...fourth column, you would use $row[3] (remember arrays are 0-based).

          echo "<option value=\"$row[2]\">$row[2] <font color='ffffff'>____</font> $row[6]sp</option>";
    }
    $_SESSION['sid'] = $_POST;
    echo "</select>";
    echo '<input type="submit" value="Use skill" name="skill">';
    echo "</form>";
} else {
    echo "You do not have any usable skills";
}
?>

 

attack.php

<?php
include_once 'connect.php';
  session_start();
  include_once 'logo.php';
?>

  <link href="style.css" rel="stylesheet" type="text/css" />
<div id="login1" div align="center">

<?php
if (isset($_SESSION['player']))
{
  $player=$_SESSION['player'];
}
else
{
  echo "Not Logged in <br><br> <A href='login.php'>Login</a>";
  exit;
}
?>
</div>
<?php
   $string = $_SESSION['sid'];
$playerinfo="SELECT * from players where name='$player'";
$playerinfo2=mysql_query($playerinfo) or die("could not get player stats!");
$playerinfo3=mysql_fetch_array($playerinfo2);
include_once 'statpanel.php';
$pid = $playerinfo3['id'];
?>
</div>
<div id="table">
<?php

$creature = $playerinfo3['creature'];
if ($creature != 0)
{
$creatureinfo="SELECT * from creatures where id='$creature'";
$creatureinfo2=mysql_query($creatureinfo) or die("could not get the creature you were fighting!");
$creatureinfo3=mysql_fetch_array($creatureinfo2);
$gold = $creatureinfo3['gold'];
}
else
{
  echo "<a href='battle.php'>No Creature selected. Go Back!";
  exit;
}

$playerhp = $playerinfo3['hpoints'];
$playerattack = $playerinfo3['attack'];
$playerdefense = $playerinfo3['defense'];
$playerpass = 0;


$creature = $creatureinfo3['name'];
$creaturehp = $creatureinfo3['hpoints'];
$creatureattack = $creatureinfo3['attack'];
$creaturedefense = $creatureinfo3['defense'];
$creatureid = $creatureinfo3['id'];

if ($playerhp < 1)
{
  echo "You are dead!" ;
  echo "<br><a href='inn.php>Heal at the lake";
  exit;
}
?>
</div>

<div id="player">
<?php
///////////////////////players turn////////////////////

echo "<center><u> " . $playerinfo3['name'] . "'s Attack</u><br>";
if (isset($_GET['sid']))
{

   $spellinfo="SELECT * from playermagic where sid='$string' AND pid='$pid'";
$spellinfo2=mysql_query( $spellinfo) or die("could not get spell!");
$spellinfo3=mysql_fetch_array( $spellinfo2);
$sname = $spellinfo3['name'];
if ($spellinfo3['type'] == "combat")
   {
   if ($spellinfo3['scost'] > $playerinfo3['spoints'])
   {
   echo "You do not have enough Spell Points for this spell.<br>";
    echo "<a href='battle.php'>Go Back";
   exit;
   }
   else
   {
   $weaponinfo="SELECT * from playerweapons where equip=1 AND pid='$pid'";
$weaponinfo2=mysql_query( $weaponinfo) or die("could not get player weapon!");
$weaponinfo3=mysql_fetch_array( $weaponinfo2);
   $spoints = $spellinfo3['scost'];
   $moddamage = $spellinfo3['svalue'] / 10;
   $moddamage = (int)$moddamage;
   $sdamage =  $spellinfo3['svalue'];
   $totalspoints = $playerinfo3['spoints'];
   $sresult = $totalspoints - $spoints;
  $playerdamage = $sdamage;
   $newcreaturehp = $creaturehp - $playerdamage;
   echo " You Cast " . $sname . " and do " . $sdamage . " points of damage";

   $updateplayer="update players set spoints='$sresult' where name='$player'";
   mysql_query($updateplayer) or die("Could not update creature");
   

   if ($newcreaturehp < 1)
   {
     echo "<br>The " . $creature . " has been killed";

   $crmaxhp=$creatureinfo3['maxhpoints'];
       $updatecreature="update creatures set hpoints='$crmaxhp' where name='$creature' limit 1";
   mysql_query($updatecreature) or die("Could not update creature");



        if ($playerinfo3['level'] > $creatureinfo3['level'])
        {
         $firstmod = $playerinfo3['level'] - $creatureinfo3['level'];
         $secondmod = $firstmod * 10 ;
         if ($secondmod > 90){$secondmod = 90;}
         $thirdmod = ($secondmod / 100) * $creatureinfo3['exper'];
         $totalexper =$creatureinfo3['exper'] - $thirdmod;
        }
        else
        {
         $firstmod = $creatureinfo3['level'] - $playerinfo3['level'];
         $secondmod = $firstmod * 10 ;
         if ($secondmod > 90){$secondmod = 90;}
         $thirdmod = ($secondmod / 100) * $creatureinfo3['exper'];
         $totalexper =$creatureinfo3['exper'] + $thirdmod;
        }
          $totalexper = (int)$totalexper;

           echo "<br><b><big>You gain " . $totalexper . " experience and " . $gold . " gold.</b></big><br>";
      $updateplayer="update players set exper=exper+'$totalexper', gold=gold+'$gold', creature=0 where name='$player'";
  mysql_query($updateplayer) or die("Could not update player");



      echo "<a href='battle.php'>Go Back";
      exit;
   }
   $playerpass = 0;
     $updateplayer="update players set spoints=spoints-'$spoints'where name='$player'";
  mysql_query($updateplayer) or die("Could not update player");
  $updatecreaturef="update creatures set hpoints='$newcreaturehp' where name='$creature' limit 1";
  mysql_query($updatecreaturef) or die("Could not update creature");
   }}
}




if ($playerpass != 1)
{

$weaponinfo="SELECT * from playerweapons where equip=1 AND pid='$pid'";
$weaponinfo2=mysql_query( $weaponinfo) or die("could not get player weapon!");
$weaponinfo3=mysql_fetch_array( $weaponinfo2);

$playerattack = rand(1,20) + $playerattack + $weaponinfo3['rating'];
//////////////////////////////////////////////////////
$creaturedefense = rand(1,20) + $creaturedefense;

//echo $playerinfo3['name'] . "'s Attack roll is " . $playerattack . "<br>";
//echo $creature . "'s defense roll is " . $creaturedefense. "<br>";

if ($playerattack  > $creaturedefense)
{
  echo  $playerinfo3['name'] . " " . $weaponinfo3['hittext'] . " and hits!<br>";


  $weapdamage = $weaponinfo3['damage'];
  $halfdamage = $weaponinfo3['damage'] / 2;
  $playerdamage = rand($halfdamage,$weapdamage);
   $newcreaturehp = $creaturehp - $playerdamage;
  echo "For " . $playerdamage . " points of damage. <br>";
   if ($newcreaturehp < 1)
   {
     echo "The " . $creature . " has been killed";

   $crmaxhp=$creatureinfo3['maxhpoints'];
       $updatecreature="update creatures set hpoints='$crmaxhp' where name='$creature' limit 1";
   mysql_query($updatecreature) or die("Could not update creature");



        if ($playerinfo3['level'] > $creatureinfo3['level'])
        {
         $firstmod = $playerinfo3['level'] - $creatureinfo3['level'];
         $secondmod = $firstmod * 100 ;
         if ($secondmod > 90){$secondmod = 90;}
         $thirdmod = ($secondmod / 100) * $creatureinfo3['exper'];
         $totalexper =$creatureinfo3['exper'] - $thirdmod;
        }
        else
        {
         $firstmod = $creatureinfo3['level'] - $playerinfo3['level'];
         $secondmod = $firstmod * 10 ;
         if ($secondmod > 90){$secondmod = 90;}
         $thirdmod = ($secondmod / 100) * $creatureinfo3['exper'];
         $totalexper =$creatureinfo3['exper'] + $thirdmod;
        }
          $totalexper = (int)$totalexper;

           echo "<br><b><big>You gain " . $totalexper . " experience and " . $gold . " gold.</b></big><br>";
      $updateplayer="update players set exper=exper+'$totalexper', gold=gold+'$gold', creature=0 where name='$player'";
  mysql_query($updateplayer) or die("Could not update player");



      echo "<a href='battle.php'>Go Back";
      exit;
   }

  $updatecreature="update creatures set hpoints='$newcreaturehp' where name='$creature' limit 1";
  mysql_query($updatecreature) or die("Could not update creature");
}
else
{
  echo  $playerinfo3['name'] . " " . $weaponinfo3['hittext'] . " and misses!";
}}
?>
</div>
<div id="creature">
<?php
//////////////////////creatures turn //////////////////

echo "<center><u> " . $creature . "'s Attack</u><br>";



///////hit location//////////////////////////////////////
      $randlocation = rand(0,100);
      if ($randlocation <= 15)
      {$location = "arms";}
      elseif ($randlocation <= 70)
      {$location = "chest";}
      elseif ($randlocation <= 90)
      {$location = "legs";}
      elseif ($randlocation <= 100)
      {$location  = "head";}

   $playerarmor="SELECT * from playerarmor where pid='$pid' AND location='$location' AND equip=1";
   $playerarmor2=mysql_query($playerarmor) or die("Could not get player armmor");
   $playerarmor3=mysql_fetch_array($playerarmor2);

   $noarmor = 0;

   if(is_null($playerarmor3['rating']))
   {
   $playerarmor3['rating'] = 0;
   $noarmor = 1;
   }


   ////////////////////////////////////
$creatureattack = rand(1,20) + $creatureattack;
$playerdefense = rand(1,20) + $playerdefense + $playerarmor3['rating'];

//echo $creature . "'s Attack roll is " . $creatureattack . "<br>";
//echo $playerinfo3['name'] . "'s defense roll is " . $playerdefense . "<br>";

if ($creatureattack  > $playerdefense)
{

  echo $creature . " hits for a strike to the " . $location . "<br>";
   $creaturedamage = rand(1,6);
   $newplayerhp = $playerhp - $creaturedamage;
   echo "For " . $creaturedamage . " points of damage. <br>";
  if ($noarmor == 1)
  {
    ".<br>";
  echo "You are not wearing armor on your " . $location . ".<br>";
   $extradamage = rand(1,3);
   echo "You take an additional " . $extradamage . " points of damage.<br>";
  $newplayerhp = $newplayerhp - $extradamage;
          $updateplayer="update players set hpoints='$newplayerhp' where name='$player'";
  mysql_query($updateplayer) or die("Could not update player");
  }
     if ($newplayerhp < 1)
   {
     echo $playerinfo3['name'] . " has been killed<br>";
      echo "<a href='index.php'>Back to town.";
       exit;
   }

}
else
{
  echo $creature . " misses!";
}
echo "<br><br><a href='battle.php?creature=$creature'>Attack em' some more!";
?>

</div>

 

Having more issues now >.> Gonna have to redo my whole attack.php because of this new form. No attacks register any damage whatsoever, be it standard attack/item..or skill...

 

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fortnox007 Regular Member

fortnox007

Posted
Posted

OK look at the attached files, with on top I mean ON TOP  ::)

 

Having more issues now >.> Gonna have to redo my whole attack.php because of this new form. No attacks register any damage whatsoever, be it standard attack/item..or skill...

 

step by step, and first things first.

 

 

 

- edit:  Maybe also look at your divs, SOme tags are missing. Maybe use NetBeans, a free program to write nice code, with tips and hints

 

[attachment deleted by admin]

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Gheeda Newbie

Gheeda

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Posted

OK look at the attached files, with on top I mean ON TOP  ::)

 

Having more issues now >.> Gonna have to redo my whole attack.php because of this new form. No attacks register any damage whatsoever, be it standard attack/item..or skill...

 

step by step, and first things first.

 

 

 

- edit:  Maybe also look at your divs, SOme tags are missing. Maybe use NetBeans, a free program to write nice code, with tips and hints

 

I couldn't be more frustrated. Battle & Attack were functioning fine before I started implementing this absolutely necessary dropdown menu. Gonna take a break from this before I decide to trash the whole project. Thanks for the help, its much appreciated.

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Gheeda Newbie

Gheeda

Posted
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Posted

OK look at the attached files, with on top I mean ON TOP  ::)

 

Having more issues now >.> Gonna have to redo my whole attack.php because of this new form. No attacks register any damage whatsoever, be it standard attack/item..or skill...

 

step by step, and first things first.

 

 

 

- edit:  Maybe also look at your divs, SOme tags are missing. Maybe use NetBeans, a free program to write nice code, with tips and hints

 

Nothing..I couldn't be more frustrated. Battle & Attack were functioning fine before I started implementing this absolutely necessary dropdown menu. Gonna take a break from this before I decide to trash the whole project. Thanks for the help, its much appreciated.

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Gheeda Newbie

Gheeda

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Posted

I assume you just ran the two file I made? That should give you an idea of session variables, exactly the thing you asked for.

 

Indeed. But applying the same idea to my pages resulted in a big ass headache. Chances are I'm too frustrated to think clearly. I'll give it another go shortly..

 

edit: This battle stuff ( and equally so, the pvp ) is the last of my worries...I would have this problem ALL sorted out if I could somehow set the forum after the loop.... (LIKE BELOW)......but of course this doubles the forum....Stupid ass $sid variable is giving me so much trouble. I hope people get to play the game too but If I cant get this battle stuff sorted...there's no point :P

 

 

if ($skillresult = mysql_query("SELECT * FROM playermagic WHERE pid='$playerid'")) {
    echo '<select name="skills">';
    echo "<option value=>*Select a Skill*</option>";
    while ($row = mysql_fetch_row($skillresult)) {
          $sid = $row['1'];
          echo "<form action=\"attack.php?sid=$sid\" method=\"post\">";
          //Next line assumes that the name of the skill is in the first column of the "skills" table.
          //If it is not, just modify the number. For example, if the name of the skill is in the
          //...fourth column, you would use $row[3] (remember arrays are 0-based).

          echo "<option value=\"$row[2]\">$row[2] <font color='ffffff'>____</font> $row[6]sp</option>";
    }

    echo "</select>";
    echo '<input type="submit" value="Use skill" name="skill">';
    echo "</form>";

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