How can I have multiple variables in a single form - php

Question

Here is what I have so far:
Age: <input type="text" name="age">
Canoe<input type="radio" name="ck">
Kayak<input type="radio" name="ck">
<input type="submit" style=" margin-bottom: 30px;">
</form>
You are <?php $_POST["age"];
if ($_POST["age"]<"11")
echo "an Atom.";
elseif ($_POST["age"]<"13")
echo "a Peewee.";
elseif ($_POST["age"]<"15")
echo "a Bantam.";
elseif ($_POST["age"]<"17")
echo "a Midget.";
elseif ($_POST["age"]<"19")
echo "a Juvenile.";
elseif ($_POST["age"]<"21")
echo "a Junior.";
elseif ($_POST["age"]<"120")
echo "a Senior.";
elseif ($_POST["age"]>"120")
echo "too old to race";
?>
I want to be able to include the canoe and kayak radio buttons in this to make the output be like: You are a Peewee canoeist and your opponents this year are: | or, you are a midget kayak er. You're opponents this year are:

Answer 1

Are you trying to echo the CK value into your output? Does this help?
Age: <input type="text" name="age">
Canoe<input type="radio" name="ck" value="canoeist">
Kayak<input type="radio" name="ck" value="kayakist">
<input type="submit" style=" margin-bottom: 30px;">
</form>
<?php
$ck = $_POST["ck"];
?>
You are <?php $_POST["age"];
if ($_POST["age"]<"11")
echo "a $ck Atom.";
elseif ($_POST["age"]<"13")
echo "a $ck Peewee.";
elseif ($_POST["age"]<"15")
echo "a $ck Bantam.";
elseif ($_POST["age"]<"17")
echo "a $ck Midget.";
elseif ($_POST["age"]<"19")
echo "a $ck Juvenile.";
elseif ($_POST["age"]<"21")
echo "a $ck Junior.";
elseif ($_POST["age"]<"120")
echo "a $ck Senior.";
elseif ($_POST["age"]>"120")
echo "too old to race";
?>
The values of the form radio must be canoeist and "kayakist". Just add the $ck = $_POST['ck']; and your sentence is like echo "a $ck Atom.";

Answer 2

You should use some variables here.
(I'm not that good at php, but I'll give it a try)
Age: <input type="text" name="age">
Canoe<input type="radio" name="ck" value="canoe"/>
Kayak<input type="radio" name="ck" value="kayak"/>
<input type="submit" style=" margin-bottom: 30px;">
</form>
$boat = "";
if ($_POST["ck"] == "canoe")
{
$boat = "canoeist";
} else if ($_POST["ck"] == "kayak")
{
$boat = "kayak er";
}
$rank = "";
You are <?php $_POST["age"];
if ($_POST["age"]<"11")
$rank = "an Atom.";
elseif ($_POST["age"]<"13")
$rank = "a Peewee.";
elseif ($_POST["age"]<"15")
$rank = "a Bantam.";
elseif ($_POST["age"]<"17")
$rank = "a Midget.";
elseif ($_POST["age"]<"19")
$rank = "a Juvenile.";
elseif ($_POST["age"]<"21")
$rank = "a Junior.";
elseif ($_POST["age"]<"120")
$rank = "a Senior.";
elseif ($_POST["age"]>"120")
$rank = "too old to race";
echo "You are " . $rank . " " . $boat;
?>