// Write a function that reverses a string. The input string is given as an array of characters.
// Example: Input: s = ["h","e","l","l","o"], Output: ["o","l","l","e","h"]
// with built-in function
function reverseString($s) {
$s = array_reverse($s);
return $s;
}
print_r(reverseString(["h", "e" , "l", "l", "o"]));// with loop
function reverseString($s) {
$count = count($s);
$array = [];
for ($i = 0; $i < $count; $i++) {
array_unshift($array, $s[$i]); // inserts element at the beginning of the array
}
$s = $array;
return $s;
}
print_r(reverseString(["h", "e" , "l", "l", "o"])); by Luka Khitaridze
2 years ago