অ্যারে ফাংশন

<?php
  $prices = [100, 200, 300];
  $withTax = array_map(fn($p) => $p * 1.18, $prices);
  print_r($withTax); // [118, 236, 354]
?>

<?php
  $numbers = [1, 2, 3, 4, 5, 6];
  $even = array_filter($numbers, fn($n) => $n % 2 === 0);
  print_r($even); // [1 => 2, 3 => 4, 5 => 6] — note the original indexes stick around
?>

<?php
  $fruits = ["apple", "banana", "mango"];
  var_dump(in_array("banana", $fruits));  // true
  var_dump(array_search("mango", $fruits)); // 2 (its index)
?>

<?php
  $scores = [40, 10, 30, 20];
  sort($scores);
  print_r($scores); // [10, 20, 30, 40]
?>

<?php
  $a = ["red", "green"];
  $b = ["blue", "yellow"];
  $all = array_merge($a, $b);
  print_r($all); // ["red", "green", "blue", "yellow"]
?>