Step by Step solution about How to resolve the algorithm Arithmetic/Integer step by step in the PHP programming language

This PHP script takes two numeric inputs from the standard input (STDIN) and performs various mathematical operations on them, including addition, subtraction, multiplication, division, modulus, and exponentiation.

Here's a breakdown of the code:

1. Input: The script uses the fgets() function to read two lines of input from the standard input. These lines are assumed to contain numeric values and are stored in the variables $a and $b.

2. Mathematical Operations: The script then performs the following mathematical operations on $a and $b and outputs the results:

   • Sum: Adds $a and $b and displays the result as "sum".
   • Difference: Subtracts $b from $a and displays the result as "difference".
   • Product: Multiplies $a and $b and displays the result as "product".
   • Truncating Quotient: Calculates the integer division of $a by $b using the (int) cast and displays the result as "truncating quotient".
   • Flooring Quotient: Calculates the flooring division of $a by $b using the floor() function and displays the result as "flooring quotient".
   • Remainder: Calculates the remainder of $a divided by $b using the % operator and displays the result as "remainder".
   • Power: Calculates $a raised to the power of $b using the ** operator (PHP 5.6+ only) and displays the result as "power".

3. Output: The script uses the echo statement to display the results of the mathematical operations on the standard output, along with descriptive labels for each result.

<?php
$a = fgets(STDIN);
$b = fgets(STDIN);

echo
    "sum:                 ", $a + $b, "\n",
    "difference:          ", $a - $b, "\n",
    "product:             ", $a * $b, "\n",
    "truncating quotient: ", (int)($a / $b), "\n",
    "flooring quotient:   ", floor($a / $b), "\n",
    "remainder:           ", $a % $b, "\n",
    "power:               ", $a ** $b, "\n"; // PHP 5.6+ only
?>