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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