Introduction to PsySH

>>> $greeting = "Hello, PsySH!"
=> "Hello, PsySH!"
>>> echo strtoupper($greeting)
HELLO, PSYSH!
=> null

foreach ($items as $item) {
    \Psy\debug(get_defined_vars());
    // Interactive shell opens here with access to $items, $item, etc.
}

>>> ls -la \Psy\Shell
Class Methods:
  __construct   addInput      all           doRun
  find          get           getHelp       has
  run           setIncludes   ...

>>> doc array_map
Function: array_map — Applies the callback to the elements of the given arrays

Synopsis:
  array_map(callable $callback, array $array, array ...$arrays): array

>>> $data = json_decode('{"name":"John","age":30}', true)
=> [
     "name" => "John",
     "age" => 30,
   ]

class UserController {
    public function show($id) {
        $user = User::find($id);
        \Psy\debug(get_defined_vars(), $this);
        return view('user.show', compact('user'));
    }
}

>>> class Person {
...     public function __construct(public string $name) {}
... }
=> null
>>> $person = new Person("Alice")
=> Person {#123
     +name: "Alice",
   }