Q:

Write a PHP program to check if an array of integers contains a 3 next to a 3 or a 5 next to a 5 or both

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Write a PHP program to check if an array of integers contains a 3 next to a 3 or a 5 next to a 5 or both.

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<?php
function test($numbers)
 { 

    for ($i = 0; $i < sizeof($numbers) - 1; $i++) 
    if (($numbers[$i] == 3 && $numbers[$i + 1] == 3) || ($numbers[$i] == 5 && $numbers[$i] == 5)) 
    return true;
	return false;
 }   

var_dump(test([5, 5, 5, 5, 5]));
var_dump(test([1, 2, 3, 4]));
var_dump(test([3, 3, 5, 5, 5, 5]));
var_dump(test([1, 5, 5, 7, 8, 10]));

Sample Output:

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

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