Question

Write a script that uses a conditional operator to determine whether a variable contains a number and whether the number is even. You need to use the is_numeric () function and the conditional operator. For floating-point number, you need to use the round () function to convert the value to the nearest whole number. Save the document as IsEven.php.

Answer 1

php code is as follows,

save the file name as IsEven.php :

<?php
//declare an assign a variable called num
$num = 11.60;
/*using is_numeric() function inside if conditional operator
to determine whether the variable num is number or not
*/
if (is_numeric($num)) {
/* using round() function to convert
the value to the nearest whole number*/
/* if conditional operator is used
to determine whether the variable num is even or not*/
   if(round($num) % 2 == 0){
echo "Even number";
}
else{
echo "Odd number";
}
   }
//enters else block if is_numeric returns false
   else {
       echo " is not numeric";
   }

?>

output screenshots for different values of num variable: