PHP Exercises: Check a given array of integers and return true if the specified number of same elements appears at the start and end of the given array

PHP Basic Algorithm: Exercise-122 with Solution

Write a PHP program to check a given array of integers and return true if the specified number of same elements appears at the start and end of the given array.

Sample Solution:

PHP Code :

<?php
// Define a function named 'test' that takes an array of numbers and an integer length as parameters
function test($numbers, $len)
{ 	
    // Calculate the size of the array
    $arra_size = sizeof($numbers);

    // Iterate through the elements of the array up to the specified length
    for ($i = 0; $i < $len; $i++)
    {
        // Check if the current element is not equal to the corresponding element from the end of the array
        if ($numbers[$i] != $numbers[$arra_size - $len + $i])
        {
            // Return false if the condition is met
            return false;
        }
    }

    // Return true if the specified length of elements from the beginning and end of the array are equal
    return true;
}   

// Use 'var_dump' to print the result of calling 'test' with different arrays and lengths
var_dump(test([3, 7, 5, 5, 3, 7], 2));
var_dump(test([3, 7, 5, 5, 3, 7], 3));
var_dump(test([3, 7, 5, 5, 3, 7, 5], 3));

Sample Output:

bool(true)
bool(false)
bool(true) 

Flowchart:

PHP Code Editor:

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