change post variable to regular variable

includes/titleranks-add.php

@@ -15,9 +15,9 @@ if (isset($_SESSION['tid'])) {
 }
 
 if (isset($_SESSION['tr'])) {
-    $_POST['titlerank'] = $_SESSION['tr'] + 1;
+    $tr = $_SESSION['tr'] + 1;
 } else {
-    $_POST['titlerank'] = 0;
+    $tr = 0;
 }
 
 $stmtname = $con->prepare("SELECT titlename, titlemaxrank FROM gwtitles WHERE titlenameid = ?");
@@ -26,13 +26,13 @@ $stmtname->execute();
 $stmtname->store_result();
 $stmtname->bind_result($gwtn, $gwtmr);
 while ($stmtname->fetch()) {
-    echo 'Adding rank to title <b>' . $gwtn . '</b><br />It\'s current maximum rank is ' . $gwtmr . '<br />';
+    echo 'Adding rank to title <b>' . $gwtn . '</b><br />The maximum rank achievable in game is ' . $gwtmr . '<br />';
 }
 $stmtname->free_result();
 $stmtname->close();
 
 echo '<form action="titlemanager.php" method="post"><table border="1"><tr><th>Title Rank Name</th><th>Title Points</th><th>Rank Level</th></tr>';
-echo '<tr><td><input type="text" name="titlerankname" required autofocus></td><td><input type="number" name="titlepoints" required></td><td><input type="number" name="titlerank" min="1" max="15" value="' . $_POST['titlerank'] . '"></tr>';
+echo '<tr><td><input type="text" name="titlerankname" required autofocus></td><td><input type="number" name="titlepoints" required></td><td><input type="number" name="titlerank" min="1" max="15" value="' . $tr . '"></tr>';
 echo '</table><br /><input type="hidden" name="title" value="titleranksubmit"><input type="hidden" name="titlenameid" value="' . $_POST['tid'] . '"><input type="submit" value="Add title rank ..."></form>';
 
 echo 'Here are the currently associated title ranks, starting with rank 1:<br />';