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<?php class Model { protected $comments; public function __construct() { $this->comments = new class { public function count() { return rand(1, 10); } }; } } class Post extends Model { public function commentCount() { static $cache; return $cache?: $cache = $this->comments->count(); } } $post = new Post(); var_dump($post->commentCount()); var_dump($post->commentCount()); var_dump($post->commentCount()); var_dump($post->commentCount()); var_dump($post->commentCount());
Output for 7.2.16, 7.2.19, 7.2.25, 7.3.9, 7.3.15 - 7.3.16, 7.4.1, 7.4.4 - 7.4.5
int(9) int(9) int(9) int(9) int(9)
Output for 7.2.17, 7.2.23, 7.3.1, 7.3.3, 7.3.13, 7.4.3
int(2) int(2) int(2) int(2) int(2)
Output for 7.2.2, 7.2.6, 7.2.9, 7.2.21, 7.3.4, 7.3.6, 7.3.10, 7.3.17, 7.4.2
int(7) int(7) int(7) int(7) int(7)
Output for 7.2.12, 7.3.0, 7.4.0
int(10) int(10) int(10) int(10) int(10)
Output for 7.2.15, 7.2.20, 7.3.7 - 7.3.8, 7.3.14
int(5) int(5) int(5) int(5) int(5)
Output for 7.2.0 - 7.2.1, 7.2.4 - 7.2.5, 7.2.10, 7.2.18, 7.2.26, 7.3.11 - 7.3.12
int(8) int(8) int(8) int(8) int(8)
Output for 7.2.14, 7.3.5
int(3) int(3) int(3) int(3) int(3)
Output for 7.2.3, 7.2.7, 7.2.11, 7.2.13, 7.2.24, 7.3.2
int(1) int(1) int(1) int(1) int(1)
Output for 7.2.8, 7.2.22, 7.2.29
int(4) int(4) int(4) int(4) int(4)
Output for 7.2.27 - 7.2.28
int(6) int(6) int(6) int(6) int(6)
preferences:
87.18 ms | 401 KiB | 59 Q