Syntax
$doubled = array_map(fn (int $n): int => $n * 2, [1, 2, 3]);Examples
PHP array_map example
A focused example you can adapt while practising.
$doubled = array_map(fn (int $n): int => $n * 2, [1, 2, 3]);Best practices
- Start with the smallest working example, then adapt it to your project.
- Use the language’s standard library and idioms before introducing extra dependencies.
Runtime & versions
PHP runtime on a server or CLI. Feature availability depends on the language and runtime version used by your project; consult the official reference below.
PHP Manual