PHP Exercises: Find out the maximum element between the first or last element in a given array of integers, replace all elements with maximum element

PHP Basic Algorithm: Exercise-92 with Solution

Write a PHP program to find out the maximum element between the first or last element in a given array of integers ( length 4), replace all elements with maximum element.

Sample Solution:

PHP Code :

<?php
// Define a function named 'test' that takes an array of numbers as a parameter
function test($nums)
 { 
    // Find the maximum value in the array using the 'max' function
    $max = max($nums);

    // Return a new array containing four copies of the maximum value
    return [$max, $max, $max, $max];
 }   

// Create an array $a with some numeric values
$a = [10, 20, -30, -40];

// Print the original array as a string using 'implode' and 'echo'
echo "Original array: " . implode(',', $a) . "\n";

// Call the 'test' function with the array $a and store the result in $result
$result = test($a);

// Print the new array with four copies of the maximum values using 'implode' and 'echo'
echo "New array with maximum values: " . implode(',', $result);
?>

Explanation:

• Function Definition:
• A function named test is defined with one parameter:
• $nums: an array of numbers.
• Finding Maximum Value:
• Inside the function, the maximum value of the array is determined using the built-in max function:
• max($nums) calculates the largest number in the array.

• Returning a New Array:
• The function returns a new array containing four copies of the maximum value:
• [$max, $max, $max, $max] creates an array with the maximum value repeated four times.
• Array Initialization:
• An array $a is created with the values: [10, 20, -30, -40].
• Display Original Array:
• The original array is displayed using echo and implode to format the array as a string:
• Function Call:
• The test function is called with the array $a, and the result is stored in the variable $result.
• Display New Array:
• The new array, which contains four copies of the maximum value, is displayed using echo and implode to format it as a string.

Output:

Original array: 10,20,-30,-40
New array with maximum values: 20,20,20,20

Flowchart:

PHP Code Editor:

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