How do experienced developers choose their favorite PHP books or resources for ongoing learning and reference?

Experienced developers often choose their favorite PHP books or resources for ongoing learning and reference based on factors such as the author's credibility, the depth of coverage on advanced topics, practical examples, and updated content that aligns with current best practices in PHP development.

// Example code snippet for loading a PHP book recommendation from a database
$recommendedBooks = [
    'title' => 'PHP Objects, Patterns, and Practice',
    'author' => 'Matt Zandstra',
    'rating' => 5,
    'link' => 'https://www.amazon.com/PHP-Objects-Patterns-Practice-Experts/dp/1484219953'
];

echo 'I highly recommend the book ' . $recommendedBooks['title'] . ' by ' . $recommendedBooks['author'] . ' for mastering PHP development. It has a rating of ' . $recommendedBooks['rating'] . ' stars. Check it out here: ' . $recommendedBooks['link'];