How send some info (values) in a link (<a>) to another page? - php

Question

I have a page which generates a list of games and button for each game with value "BUY GAME".
The objective is to execute multiple SQL queries when the button is clicked for a particular game.
What is an appropriate way of accessing the 'name','consolename',etc. for EACH game from the ARRAY and to execute queries on them in another page - purchase.php?
NOTE: I did consider using sessions but when I pass the variable $index as a SESSION variable, I only get the final value at all times.
buygame.php
<?php
session_start();
//connect to db
dbConnect("root", "") ;
dbSelect("webdesign");
//SEARCH FOR GAMES
print "<h3>Games to Buy: </h3>";
$query = "SELECT gamecode,name, consolename,price, points, genre from game";
$result = runQuery($query);
while($row = mysql_fetch_array($result))
{
$array[] = $row;
}
$index =0 ;
//DISPLAYING A LIST OF GAMES
while($index<sizeof($array))
{
echo $array[$index]['name'];
echo $array[$index]['consolename'];
echo $array[$index]['genre'];
echo ("Price is: ".$array[$index]['price']." USD");
echo ("Loyalty Points: ".$array[$index]['points']);
//THE BUTTON "BUY GAME"
echo("<a href='purchase.php'><input type='submit' name='submit[$index]' value='Buy Game'/></a>");
$index = $index + 1;
}
?>
purchase.php
<?php
session_start();
//connect to database
dbConnect("root", "") ;
dbSelect("webdesign");
$index = 0;
echo "Button clicked ";
//I am trying this but I'm sure that this is not right
if (isset($_POST['submit[$index'])){
print "$index was clicked";
}
?>

Answer 1

In buygame.php change the code to:
//THE BUTTON "BUY GAME"
echo("<a href='purchase.php?gamecode={$array[$index]['gamecode']}'><input type='submit' name='submit[$index]' value='Buy Game'/></a>");
In purchase.php
<?php
if(isset($_GET['gamecode'])) {
echo $_GET['gamecode'];
//and make ......
}

Answer 2

//THE BUTTON "BUY GAME"
$gamecode = $array[$index]['gamecode'];
echo("<a href='purchase.php?gamecode=$gamecode'><input type='submit' name='submit[$index]' value='Buy Game'/></a>");
$index = $index + 1;
Then in purchase.php You know exactly, what game has been bought.