I am new in php. i want to create a program with input fields as width, height etc. where user input their value and display output as total area, I already finished till here, but i also need a rectangle or div shape as entered input value(width and height). shape should be change according to input values, I tried but could not succeed, can someone please guide me how to do it?
here it is my code, although it is very poor coding, still learning.
<?php
if(!isset($_POST['submit'])){
?>
<form method="post"action="<?php echo $_SERVER['PHP_SELF'];?>">
<h2>Please enter rectangle value</h2>
<p>Enter width value
<input type="text"name="w"/></p>
<p>Enter height value
<input type="text"name="h"/></p>
<p><input type="submit"name="submit"value="Submit"/>
<input type="reset"name="reset"value="Reset"/></p>
</form>
<?php
}else{
$w=$_POST['w'];
$h=$_POST['h'];
if(empty($_POST['w'])|| empty($_POST['h'])){
echo"please enter value<br/>";
}
elseif(!ctype_digit($w)|| (!ctype_digit($h))){
echo"value must be integer<br/>";
}
else
{
$w=$_POST['w'];
$h=$_POST['h'];
}
echo "Total area is ".calc($w,$h);
}
$w=0;
$h=0;
function calc($w,$h){
$area=$w*$h;
if($w==$h){
echo"It is a square<br/>";
}else{
echo"It is a rectangle<br/>";
}
return $area;
}
?>
