HTML file coding (filename form.html or whatever you choose):

 <h2>PHP exercise 2: Multiplication table generator</h2>
<p><form action="exercise2process.php" method="post">
Generate a <input type="text" name="first_num" size="2"> by <input type="text" name="second_num" size="2"> Timetable <br>
<input type="submit" value="Go!">
</form>
</p>
<p> <a href="exercise2source.txt">See source code here </a></p>



PHP File coding (filename exercise2process.php):

<?php

// retrieve form data

$first_num= $_POST['first_num'];
$second_num= $_POST['second_num'];


// use it

for ($x=1; $x<=$first_num; $x++) {

   for ($y=1; $y<=$second_num; $y++) {
     echo $x*$y." ";
   }
    echo "<br>";
  
}
 
?>