如何在数组和 lamda 函数上添加函数和过滤器

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    <h1>You have read in dark mode </h1>

    <?php     
    function filterBooksByAuthor($books, $author) {
        $filteredBooks = array_filter($books, function($book) use ($author) {
            return $book['author'] == $author;
        });
        return $filteredBooks;
    }

    $books = [
        ['name' => 'Web', 'author' => 'Philip K. Dick', 'purchaseUrl' => 'http://example.com'],
        ['name' => 'OOP', 'author' => 'Andy Weir', 'purchaseUrl' => 'http://example.com'],
        ['name' => 'Database', 'author' => 'Jeffery', 'purchaseUrl' => 'http://example.com']
    ];

    $filteredBooks = filterBooksByAuthor($books, 'Andy Weir');
    ?>

    <!-- Display filtered books -->
    

                   
• = $book['name']; ?> - by = $book['author'] ?>