30秒学会 PHP 片段 – findLast

Returns the last element for which the provided function returns a truthy value.

Use array_filter() to remove elements for which $func returns falsy values, array_pop() to get the last one.

代码实现

function findLast($items, $func)
{
  $filteredItems = array_filter($items, $func);

  return array_pop($filteredItems);
}

使用样例

findLast([1, 2, 3, 4], function ($n) {
  return ($n % 2) === 1;
});
// 3