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Metode dan Algoritma | PHP and Division To divide one number by another the symbol is used in PHP . Anda bisa melakukan konsultasi tentang PHP and Division To divide one number by another the symbol is used in PHP melalui form di samping kanan !!!
To divide one number by another, the / symbol is used in PHP. If you see 20 / 10, it means divide 10 into 20. Try it yourself:
<?php
$first_number = 10;
$second_number = 20;
$sum_total = $second_number / $first_number;
print ($sum_total);
?>
Again, you have to be careful of operator precedence. Try this code:
<?php
$first_number = 10;
$second_number = 20;
$third_number = 100;
$sum_total = $third_number - $second_number / $first_number;
print ($sum_total);
?>
PHP won't work out the sum from left to right! Division is done before subtraction. So this will get done first:
$second_number / $first_number
And NOT this:
$third_number - $second_number
Using parentheses will clear things up. Here's the two versions for you to try:
Version one
$sum_total = $third_number - ($second_number / $first_number);
Version two
$sum_total = ($third_number - $second_number) / $first_number;
The first version will get you an answer of 98, but the second version gets you an answer of 8! So remember this: division and multiplication get done BEFORE subtraction and addition. Use parentheses if you want to force PHP to calculate a different way.
In the next part, we'll take a look at how PHP handles floating point numbers.
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Ditulis Oleh hank2
