Consider the following code fragment in PHP:

$a = 19;
$b = 9;
$c = $a % $b;

What will the variable '$c' contain after each of the above statements has executed?

Question

Consider the following code fragment in PHP:

$a = 19;
$b = 9;
$c = $a %  $b;

What will the variable '$c' contain after each of the above statements has executed?

BlackTom AI · Accepted Answer

We need to walk through the given PHP code step by step to determine what the variable $c will contain after execution.

First, note the initializations: $a is assigned 19 and $b is assigned 9. These are plain integer values.

The expression in question is: $c = $a % $b;. The % operator in PHP is the modulus (remainder) operator. It computes the remainder after dividing the left-hand side by the right-hand side.

Compute 19 divided by 9: 9 goes into 19 a total of 2 times (since 9 * 2 = 18), and the remainder is 19 - 18 = 1.

Therefore, 19 % 9 yields 1, so $c gets the value 1. This value is an integer.

Note: There is a potential formatting artifact in the prompt where a non-breaking space appears between % and $b (shown as %  $b). In PHP, whitespace around operators is ignored, so this does not affect the computation; the operation still performs modulo as intended.

SENG1050 (T3 2025 PSB) Practice Quiz Week 6

Consider the following code fragment in PHP: $a = 19; $b = 9; $c = $a % $b; What will the variable '$c' contain after each of the above statements has executed?

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