Re: [RFC] Four Pragmatic Directions for PHP: Simplicity, Arrays, Performance, Concurrency

On 2026-03-24 23:08, 沉默领域、 wrote:

// Proposed $names = array_pluck($users, 'name'); $names = array_where($users, fn($u) => $u->active); $first = array_first($users); $grouped = array_group_by($users, 'role'); $compact = array_compact($data);

Of those, array_compact() is obscure in its purpose, and of the others one exists under the suggested name and three of the others exist under different names. array_group_by() is the only one that isn't already implemented. I think it means: $roles = array_unique(array_column($users, 'role')); $grouped = array_combine($roles, array_map(fn($r) => array_filter($users, fn($u) => $u['role']==$r), $roles)); though there are more efficient (and readable) ways of doing that. -- Optimising the implementation would be more difficult if the language were allowed to be sloppier. Conversely, tightening up the language allows improved optimisation.