What I am trying to make is a conversion site between the 5 units. When I display the site it shows 15 answers, rather than 5. So I believe I need some type of "if" this unit is "Selected" "then" display the 5 answers. Unfortunately since this is my first attempt at writing PHP I do not know how to write the statement.
<html>
<head>
<title> Lindsey's Conversion Help </title>
</head>
<body>
<H3> Get ready to convert between Circumference, Radians, Degrees, Grade, and NauticalRhumb! </H2>
<TABLE BORDER="2" CELLSPACING="0" CELLPADDING="3" style="background-color:#D0F18F;">
<tr>
<th>Please enter a number: </th>
<th>Please select your units: </th>
<th>Here is your Result!</th>
</tr>
<tr>
<td>
<form action="ConvertingUnits.php" method="POST" >
Enter your number here! <br>
<input type="text" name="number"/><br>
<input type="submit" />
</form>
</td>
<td>
<form name="myform" action="ConvertingUnits.php" method="POST">
<div align="center">
<select name="myselection">
<option value="Circumference">Circumference</option>
<option value="Radian">Radian</option>
<option value="Degree">Degree</option>
<option value="Grade">Grade</option>
<option value="NauticalRhumb">NauticalRhumb</option>
</select>
</div>
</form>
</td>
<td>
<?php
$NauticalRhumb = $_POST["number"];
if (is_numeric($NauticalRhumb)) {
$Circumference = (($NauticalRhumb)*(0.03125));
echo $Circumference ." Circumference <br>";
}
$NauticalRhumb = $_POST["number"];
if (is_numeric($NauticalRhumb)) {
$Degree = (($NauticalRhumb)*(11.25));
echo $Degree ." Degree <br>";
}
$NauticalRhumb = $_POST["number"];
if (is_numeric($NauticalRhumb)) {
$Radian = (($NauticalRhumb)*(0.1963495));
echo $Radian ." Radian <br>";
}
$NauticalRhumb = $_POST["number"];
if (is_numeric($NauticalRhumb)) {
$Grade = (($NauticalRhumb)*(12.5));
echo $Grade ." Grade <br>";
}
$Grade = $_POST["number"];
if (is_numeric($Grade)) {
$Circumference = (($Grade)*(0.0025));
echo $Circumference ." Circumference <br>";
}
$Grade = $_POST["number"];
if (is_numeric($Grade)) {
$Degree = (($Grade)*(0.9));
echo $Degree ." Degree <br>";
}
$Grade = $_POST["number"];
if (is_numeric($Grade)) {
$Radian = (($Grade)*(0.01570796));
echo $Radian ." Radian <br>";
}
$Grade = $_POST["number"];
if (is_numeric($Grade)) {
$NauticalRhumb = (($Grade)*(0.08));
echo $NauticalRhumb ." NauticalRhumb <br>";
}
$Degree = $_POST["number"];
if (is_numeric($Degree)) {
$Circumference = (($Degree)*(0.002778));
echo $Circumference ." Circumference <br>";
}
$Degree = $_POST["number"];
if (is_numeric($Degree)) {
$Grade = (($Degree)*(1.111));
echo $Grade ." Grade <br>";
}
$Degree = $_POST["number"];
if (is_numeric($Degree)) {
$Radian = (($Degree)*(0.01745));
echo $Radian ." Radian <br>";
}
$Degree = $_POST["number"];
if (is_numeric($Degree)) {
$NauticalRhumb = (($Degree)*(0.08889));
echo $NauticalRhumb ." NauticalRhumb <br>";
}
$Radian = $_POST["number"];
if (is_numeric($Radian)) {
$Circumference = (($Radian)*(0.1591549));
echo $Circumference ." Circumference <br>";
}
$Radian = $_POST["number"];
if (is_numeric($Radian)) {
$Grade = (($Radian)*(63.66198));
echo $Grade ." Grade <br>";
}
$Radian = $_POST["number"];
if (is_numeric($Radian)) {
$Dergee = (($Radian)*(57.29578));
echo $Degree ." Degree <br>";
}
$Radian = $_POST["number"];
if (is_numeric($Radian)) {
$NauticalRhumb = (($Radian)*(5.092958));
echo $NauticalRhumb ." NauticalRhumb <br>";
}
$Circumference = $_POST["number"];
if (is_numeric($Circumference)) {
$Radian = (($Circumference)*(6.283));
echo $Radian ." Radian <br>";
}
$Circumference = $_POST["number"];
if (is_numeric($Circumference)) {
$Grade = (($Circumference)*(400));
echo $Grade ." Grade <br>";
}
$Circumference = $_POST["number"];
if (is_numeric($Circumference)) {
$Dergee = (($Circumference)*(360));
echo $Degree ." Degree <br>";
}
$Circumference = $_POST["number"];
if (is_numeric($Circumference)) {
$NauticalRhumb = (($Circumference)*(32));
echo $NauticalRhumb ." NauticalRhumb <br>";
}
else
echo "Please enter a number!";
?>
</td>
</tr>
</table>
</body>
</html>
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