PHP Exercises: Sum of all numerical values embedded in a sentence

PHP: Exercise-69 with Solution

Write a PHP program to sum of all numerical values (positive integers) embedded in a sentence.
Sentences with positive integers are given over multiple lines. Each line is a character string containing one-byte alphanumeric characters, symbols, spaces, or an empty line. However the input is 80 characters or less per line and the sum is 10,000 or less.

Sample Solution:

PHP Code:

<?php
// Initialize a variable to store the sum of numeric values
$sum = 0;

// Read a line of input and remove trailing whitespaces
$s = rtrim(fgets(STDIN));

// Use a regular expression to find all numeric values in the input string
if (preg_match_all('/[0-9]+/', $s, $a)) {
    // Iterate through the matched numeric values and add them to the sum
    foreach ($a[0] as $v) {
        $sum += (int) $v;
    }
}

// Output the sum of the numeric values
echo "Sum of the numeric values: " . $sum . PHP_EOL;

?>

Sample Input:
5 apple and 10 orange are rotten in the basket

Sample Output:

Sum of the numeric values: 15

Flowchart:

PHP Code Editor:

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