【返り値】PHPで配列の中に特定の値が存在するかどうかを確認する方法【in_array】

<?php
$array = array("apple", "banana", "cherry");

$search = "banana";
if (in_array($search, $array)) {
  echo "$search is found in the array";
} else {
  echo "$search is not found in the array";
}