PHP Math Exercises: Find the maximum and minimum marks from the specified set of arrays

Last update on June 02 2025 13:00:31 (UTC/GMT +8 hours)

1. Maximum/Minimum Marks from Arrays

Write a PHP script to find the maximum and minimum marks from the following set of arrays.

Sample arrays :
$marks1 = array(360,310,310,330,313,375,456,111,256);
$marks2 = array(350,340,356,330,321);
$marks3 = array(630,340,570,635,434,255,298);

Visual Presentation:

Sample Solution:

PHP Code:

<?php
// Define arrays of marks for three subjects
$marks1 = array(360,310,310,330,313,375,456,111,256); 
$marks2 = array(350,340,356,330,321); 
$marks3 = array(630,340,570,635,434,255,298); 

// Find the maximum marks among all subjects
$max_marks = max(max($marks1), max($marks2), max($marks3)); 

// Find the minimum marks among all subjects
$min_marks = min(min($marks1), min($marks2), min($marks3)); 

// Output the maximum and minimum marks
echo "Maximum marks : ".$max_marks."\n";
echo "Minimum marks : ".$min_marks."\n";
?>

Output:

Maximum marks : 635                                         
Minimum marks : 111

Explanation:

The above PHP code finds the maximum and minimum marks among three arrays of marks for different subjects.

• Three arrays named '$marks1', '$marks2', and '$marks3' contain marks for different subjects.
• The "max()" and "min()" functions are used to find the maximum and minimum values in each array.
• "max()" and "min()" functions are again used with all three arrays as arguments to find the overall maximum and minimum marks across all subjects.
• The maximum and minimum marks are then printed out using "echo".

Flowchart:

For more Practice: Solve these Related Problems:

• Write a PHP function to merge multiple arrays of marks and then find the overall maximum and minimum values without using built-in min() or max() functions.
• Write a PHP script to compare the maximum mark from one array with the minimum mark from another array and output the difference.
• Write a PHP program to sort each array of marks in ascending order and then extract the first and last elements as the minimum and maximum, respectively.
• Write a PHP function to process an array of arrays, calculating individual maximum and minimum marks for each, and then determine the overall maximum and minimum across all arrays.

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