Could someone please explain why I am recieving this error in the below code and what I can do to fix it, error is referring to : echo "<tr><td>{$r['logID']}</td><td><a href='viewuser.php?u={$r['>{$r['username']}</a> [{$r['userID']}]</td><td>{$r['amount']}</td><td><a href='5050.php?chal={$r['>Challenge</a></td><td>";
To put it into context here is the whole snippet.
<?php
include "globals.php";
$minbet=1;
$maxg=10;
echo "<big>50 / 50 Crystals Game</big>";
function add_game()
{
global $ir,$t,$userid, $db, $minbet, $maxg;
if(!isset($_POST['amt']))
{
echo "<big>Adding a game</big>
<form action='5050.php?add=1' method='post'>
Amount of crystals:<input type='text' name='amt' size=10 maxlength=10>
<input type='submit' value='Add!'></form>
($maxg games max per user)
<a href='5050.php'>Back</a>";
}
else
{
$_POST['amt'] = abs((int) $_POST['amt']);
if($_POST['amt'] < $minbet)
{
echo "The minimum bet is $minbet
<a href='5050.php?add=1'>Back</a>";exit;
}
$theckcount=$db->query("SELECT logID FROM tchance WHERE userID={$ir['userid']} and active=1");
if($db->num_rows($theckcount) > ($maxg-1))
{
echo "There is a maximum of $maxg games per user.
<a href='5050.php'>Back</a>";exit;
}
if($ir['crystals'] < $_POST['amt'])
{
echo "You cannot afford that amount.
<a href='5050.php'>Back</a>";exit;
}
$db->query("UPDATE users SET crystals = crystals - {$_POST['amt']} WHERE userid = {$ir['userid']}");
$ir['crystals']=$ir['crystals'] - $_POST['amt'];
$db->query("INSERT INTO tchance VALUES ('', {$ir['userid']}, {$_POST['amt']}, 1)");
echo "Your game has been set. Good Luck.
<a href='5050.php'>Back</a>";
}
}
function view_games()
{
global $ir,$t,$userid, $db, $maxg;
$q=$db->query("SELECT t.*, u.username FROM tchance t left join users u on u.userid = t.userID WHERE t.active = 1 ORDER BY t.logID ASC");
echo "<a href='5050.php?add=1'>Add Game</a>
Table of users awaiting a challenge
<table class='table' width=50%><tr><th>Game ID</th><th>User</th><th>Amount</th><th>Challenge</th><th>Cancel</th></tr>";
if($db->num_rows($q) < 1){echo "<tr><td colspan=5>There are currenly no challenges</td></tr>";}
while($r=$db->fetch_row($q))
{
echo "<tr><td>{$r['logID']}</td><td><a href='viewuser.php?u={$r['>{$r['username']}</a> [{$r['userID']}]</td><td>{$r['amount']}</td><td><a href='5050.php?chal={$r['>Challenge</a></td><td>";
if($ir['userid']==$r['userID']){echo "<a href='5050.php?cancel={$r['>Cancel</a>";}
echo "</td></tr>";
}
echo "</table>";
}
function dogame()
{
global $ir,$t,$userid, $db;
$_GET['chal'] = abs((int) $_GET['chal']);
$q=$db->query("SELECT t.*, u.username from tchance t LEFT JOIN users u ON t.userID = u.userid Where t.logID={$_GET['chal']} AND t.active = 1 LIMIT 1");
if($db->num_rows($q) > 0)
{
$r=$db->fetch_row($q);
if($ir['crystals'] < $r['amount'])
{
echo "You cannot afford the challenge amount.
<a href='5050.php'>Back</a>";exit;
}
if($ir['userid'] == $r['userID'])
{
echo "You cannot accept your own challenge.
<a href='5050.php'>Back</a>";exit;
}
if(rand(1,2) == 1)
{
$winner=$r['userID']; $loser=$ir['userid'];
$winnername=$r['username'];
$losername=$ir['username'];
$tstring="Sorry, you Lost. Better luck next time.
<a href='5050.php'>Back</a>";
$db->query("UPDATE users SET crystals = crystals - {$r['amount']} WHERE userid={$ir['userid']}");
$db->query("UPDATE users SET crystals = crystals + ({$r['amount']} * 2) WHERE userid={$r['userID']}");
}
else
{
$winner=$ir['userid']; $loser=$r['userID'];
$winnername=$ir['username'];
$losername=$r['username'];
$tstring="You Won! Congratulations! You Won {$r['amount']} crystals.
<a href='5050.php'>Back</a>";
$db->query("UPDATE users SET crystals = crystals + {$r['amount']} WHERE userid={$ir['userid']}");
}
event_add($winner, "The game of {$r['amount']} crystals challenged by <a href='viewuser.php?u={$r['>{$r['username']}</a> was won by <a href='viewuser.php?u={$winner}'>{$winnername}</a>.", $t);
event_add($loser, "The game of {$r['amount']} crystals challenged by <a href='viewuser.php?u={$r['>{$r['username']}</a> was won by <a href='viewuser.php?u={$winner}'>{$winnername}</a>.", $t);
$db->query("UPDATE tchance SET active = 0 WHERE logID={$_GET['chal']}");
echo $tstring;
}
else
{
echo "This game has either been cancelled or someone played before you got the 5050.
<a href='5050.php'>Back</a>"; exit;
}
}
function cancel()
{
global $ir,$t,$userid, $db;
$_GET['cancel'] = abs((int) $_GET['cancel']);
$q=$db->query("SELECT * from tchance where logID={$_GET['cancel']} AND active = 1");
if($db->num_rows($q) > 0)
{
$r=$db->fetch_row($q);
$db->query("UPDATE users SET crystals = crystals + {$r['amount']} WHERE userid = {$ir['userid']}");
$ir['crystals']=$ir['crystals'] + $r['amount'];
$db->query("UPDATE tchance SET active = -1 WHERE logID = {$_GET['cancel']}");
echo "The game has been cancelled, and your crystals has been returned.
<a href='5050.php'>Back</a>";
}
else
{
echo "This game has already been canceled, does not exist, or someone already played.
<a href='5050.php'>Back</a>";
}
}
if(isset($_GET['cancel'])){cancel();}
elseif(isset($_GET['chal'])){dogame();}
elseif(isset($_GET['add'])){add_game();}
else{view_games();}
?>
Thanks for taking the time to help me and teach me.
You have “$r[” in the middle of double quotes. Escape it with a slash and you’ll be better off (PHP is trying to evaluate your variable). You probably don’t mean to have $r, but just r
I personally think your syntax is confusing, I’d rather use “.” to concatenate the strings and variables: