header()

$_COOKIE

setcookie()

setrawcookie()

array_rand($array);

array_rand($array, 1);

shuffle($array);

$array[array_rand($array)];

array_value($array, ARRAY_RANDOM);

4

5

7

0

MyObject should extend class Closure

MyObject should implement interface Callable

MyObject should implement method__call

MyObject should implement method__invoke

Multiple traits can be used by a single class

A trait can implement an interface

A trait can declare a private variable.

Traits are able to be auto-loaded.

Traits automatically resolve conflicts based on definition order.

array_shift()

array_pop()

array_pull()

array_unshift()

SOAP is also a request-/response-based protocol.

SOAP can be transported using SMTP, HTTP and other protocols.

SOAP requires developers to use WSDL.

SOAP traffic via HTTP can be encrypted and compressed just like other HTTP requests.

Store session data in a different location with session.save_path

Store session data in a database

Enable safe_mode

Set session.name to something unique.

A parser error, try cannot be followed by multiple catch

1:Exception

1:MyExeption

2:MyException

MyException