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Cylinder which implements this interface and calculate area and volume | PHP - IProgramX
Q. Define an interface which has methods area( ), volume( ). Define constant PI. Create a class cylinder which implements this interface and calculate area and volume. (Hint: Use define( ))
HTML File: <html> <head><title>A4A1</title></head> <body bgcolor="GOLD" font type='San Sarif'> <center><h2>Implementation of Interface and Class</h2></center> <br/> <hr> <form action="a4a1.php" method='POST'> <h3>Enter radius :<input type='text' name='rad'><br/></h3> <h3>Enter height :<input type='text' name='hit'><br/></h3> <br/> <br/> <pre><input type='submit' name='submit' value='Area.'> <input type='reset' name='reset' value='reset'> </form> </body> </html>
PHP Function: NOTE: PHP function is saved as "a4a1.php " <?php $r=$_POST['rad']; $h=$_POST['hit']; define('PPI','3.1412'); Interface fun { function area($r,$h); function volume($r,$h); } class cylinder implements fun { function area($r,$h) { $area=(2*PPI*$r*($r+$h)); echo "<center><h3>The area of cylinder is: $area</font></center></h3>"; } function volume($r,$h) { $v=(PPI*$r*$r*$h); echo "<center><h3>The volume of cylinder is: $v</font></center></h3>"; } } $o=new cylinder; $o->area($r,$h); $o->volume($r,$h); ?> Output:
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