<?php
echo "Sum of 90, 0.4, 0.4, 1.2 and 8<br><br>";
$i1=90;
$i2=0.4;
$i3=0.4;
$i4=1.2;
$i5=8;
$sum=$i1+$i2+$i3+$i4+$i5;
echo "Sum: ".$sum."<br>";
echo "Sum equal 100: ";if($sum==100) {echo "true";} else {echo "false";}
?>

<?php
echo "array_sum([90,8,0.4,0.4,1.2]) = ".array_sum([90,8,0.4,0.4,1.2])."<hr>";
 
echo "array_sum([90,8,0.4,0.4,1.2]) == 100 : ";
echo (array_sum([90,8,0.4,0.4,1.2]) == 100) ? 'true' : 'false';