HumHub Documentation (unofficial)

Message extends Component
in package

Message represents a base HTTP message.

Tags
author

Paul Klimov klimov.paul@gmail.com

since
2.0

Table of Contents

Properties

$behaviors  : array<string|int, Behavior>
$client  : Client
$content  : string
$cookies  : CookieCollection|array<string|int, Cookie>
$data  : mixed
$format  : string
$headers  : HeaderCollection
$_behaviors  : array<string|int, Behavior>|null
$_content  : string|null
$_cookies  : CookieCollection
$_data  : mixed
$_events  : array<string|int, mixed>
$_eventWildcards  : array<string|int, mixed>
$_format  : string
$_headers  : HeaderCollection

Methods

__call()  : mixed
Calls the named method which is not a class method.
__clone()  : mixed
This method is called after the object is created by cloning an existing one.
__construct()  : mixed
Constructor.
__get()  : mixed
Returns the value of a component property.
__isset()  : bool
Checks if a property is set, i.e. defined and not null.
__set()  : mixed
Sets the value of a component property.
__toString()  : string
PHP magic method that returns the string representation of this object.
__unset()  : mixed
Sets a component property to be null.
addCookies()  : $this
Adds more cookies to the already defined ones.
addData()  : $this
Adds data fields to the existing ones.
addHeaders()  : $this
Adds more headers to the already defined ones.
attachBehavior()  : Behavior
Attaches a behavior to this component.
attachBehaviors()  : mixed
Attaches a list of behaviors to the component.
behaviors()  : array<string|int, mixed>
Returns a list of behaviors that this component should behave as.
canGetProperty()  : bool
Returns a value indicating whether a property can be read.
canSetProperty()  : bool
Returns a value indicating whether a property can be set.
className()  : string
Returns the fully qualified name of this class.
composeHeaderLines()  : array<string|int, mixed>
Composes raw header lines from [[headers]].
detachBehavior()  : Behavior|null
Detaches a behavior from the component.
detachBehaviors()  : mixed
Detaches all behaviors from the component.
ensureBehaviors()  : mixed
Makes sure that the behaviors declared in [[behaviors()]] are attached to this component.
getBehavior()  : Behavior|null
Returns the named behavior object.
getBehaviors()  : array<string|int, Behavior>
Returns all behaviors attached to this component.
getContent()  : string
Returns HTTP message raw content.
getCookies()  : CookieCollection|array<string|int, Cookie>
Returns the cookie collection.
getData()  : mixed
Returns the data fields, parsed from raw content.
getFormat()  : string
Returns body format.
getHeaders()  : HeaderCollection
Returns the header collection.
hasContent()  : bool
Checks if content with provided name exists
hasCookies()  : bool
Checks of HTTP message contains any cookie.
hasEventHandlers()  : bool
Returns a value indicating whether there is any handler attached to the named event.
hasHeaders()  : bool
Checks of HTTP message contains any header.
hasMethod()  : bool
Returns a value indicating whether a method is defined.
hasProperty()  : bool
Returns a value indicating whether a property is defined for this component.
init()  : mixed
Initializes the object.
off()  : bool
Detaches an existing event handler from this component.
on()  : mixed
Attaches an event handler to an event.
setContent()  : $this
Sets the HTTP message raw content.
setCookies()  : $this
Sets the cookies associated with HTTP message.
setData()  : $this
Sets the data fields, which composes message content.
setFormat()  : $this
Sets body format.
setHeaders()  : $this
Sets the HTTP headers associated with HTTP message.
toString()  : string
Returns string representation of this HTTP message.
trigger()  : mixed
Triggers an event.
defaultFormat()  : string
Returns default format name.
attachBehaviorInternal()  : Behavior
Attaches a behavior to this component.

Properties

$behaviors read-only

public array<string|int, Behavior> $behaviors

List of behaviors attached to this component.

$content

public string $content

Raw body.

$cookies

public CookieCollection|array<string|int, Cookie> $cookies

The cookie collection. Note that the type of this property differs in getter and setter. See [[getCookies()]] and [[setCookies()]] for details.

$data

public mixed $data

Content data fields.

$format

public string $format

Body format name.

$headers

public HeaderCollection $headers

The header collection. Note that the type of this property differs in getter and setter. See [[getHeaders()]] and [[setHeaders()]] for details.

$_behaviors

private array<string|int, Behavior>|null $_behaviors

the attached behaviors (behavior name => behavior). This is null when not initialized.

$_content

private string|null $_content

raw content

$_data

private mixed $_data

content data

$_events

private array<string|int, mixed> $_events = []

the attached event handlers (event name => handlers)

$_eventWildcards

private array<string|int, mixed> $_eventWildcards = []

the event handlers attached for wildcard patterns (event name wildcard => handlers)

Tags
since
2.0.14

$_format

private string $_format

content format name

Methods

__call()

Calls the named method which is not a class method.

public __call(string $name, array<string|int, mixed> $params) : mixed

This method will check if any attached behavior has the named method and will execute it if available.

Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.

Parameters
$name : string

the method name

$params : array<string|int, mixed>

method parameters

Tags
throws
UnknownMethodException

when calling unknown method

Return values
mixed

the method return value

__clone()

This method is called after the object is created by cloning an existing one.

public __clone() : mixed

It removes all behaviors because they are attached to the old object.

__construct()

Constructor.

public __construct([array<string|int, mixed> $config = [] ]) : mixed

The default implementation does two things:

  • Initializes the object with the given configuration $config.
  • Call [[init()]].

If this method is overridden in a child class, it is recommended that

  • the last parameter of the constructor is a configuration array, like $config here.
  • call the parent implementation at the end of the constructor.
Parameters
$config : array<string|int, mixed> = []

name-value pairs that will be used to initialize the object properties

__get()

Returns the value of a component property.

public __get(string $name) : mixed

This method will check in the following order and act accordingly:

  • a property defined by a getter: return the getter result
  • a property of a behavior: return the behavior property value

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $value = $component->property;.

Parameters
$name : string

the property name

Tags
throws
UnknownPropertyException

if the property is not defined

throws
InvalidCallException

if the property is write-only.

see
__set()
Return values
mixed

the property value or the value of a behavior's property

__isset()

Checks if a property is set, i.e. defined and not null.

public __isset(string $name) : bool

This method will check in the following order and act accordingly:

  • a property defined by a setter: return whether the property is set
  • a property of a behavior: return whether the property is set
  • return false for non existing properties

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing isset($component->property).

Parameters
$name : string

the property name or the event name

Tags
see
https://www.php.net/manual/en/function.isset.php
Return values
bool

whether the named property is set

__set()

Sets the value of a component property.

public __set(string $name, mixed $value) : mixed

This method will check in the following order and act accordingly:

  • a property defined by a setter: set the property value
  • an event in the format of "on xyz": attach the handler to the event "xyz"
  • a behavior in the format of "as xyz": attach the behavior named as "xyz"
  • a property of a behavior: set the behavior property value

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $component->property = $value;.

Parameters
$name : string

the property name or the event name

$value : mixed

the property value

Tags
throws
UnknownPropertyException

if the property is not defined

throws
InvalidCallException

if the property is read-only.

see
__get()

__toString()

PHP magic method that returns the string representation of this object.

public __toString() : string
Return values
string

the string representation of this object.

__unset()

Sets a component property to be null.

public __unset(string $name) : mixed

This method will check in the following order and act accordingly:

  • a property defined by a setter: set the property value to be null
  • a property of a behavior: set the property value to be null

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing unset($component->property).

Parameters
$name : string

the property name

Tags
throws
InvalidCallException

if the property is read only.

see
https://www.php.net/manual/en/function.unset.php

addCookies()

Adds more cookies to the already defined ones.

public addCookies(array<string|int, Cookie>|array<string|int, mixed> $cookies) : $this
Parameters
$cookies : array<string|int, Cookie>|array<string|int, mixed>

additional cookies.

Return values
$this

self reference.

addData()

Adds data fields to the existing ones.

public addData(array<string|int, mixed> $data) : $this
Parameters
$data : array<string|int, mixed>

additional content data fields.

Tags
since
2.0.1
Return values
$this

self reference.

addHeaders()

Adds more headers to the already defined ones.

public addHeaders(array<string|int, mixed> $headers) : $this
Parameters
$headers : array<string|int, mixed>

additional headers in format: [headerName => headerValue]

Return values
$this

self reference.

attachBehavior()

Attaches a behavior to this component.

public attachBehavior(string $name, string|array<string|int, mixed>|Behavior $behavior) : Behavior

This method will create the behavior object based on the given configuration. After that, the behavior object will be attached to this component by calling the [[Behavior::attach()]] method.

Parameters
$name : string

the name of the behavior.

$behavior : string|array<string|int, mixed>|Behavior

the behavior configuration. This can be one of the following:

  • a [[Behavior]] object
  • a string specifying the behavior class
  • an object configuration array that will be passed to [[Yii::createObject()]] to create the behavior object.
Tags
see
detachBehavior()
Return values
Behavior

the behavior object

attachBehaviors()

Attaches a list of behaviors to the component.

public attachBehaviors(array<string|int, mixed> $behaviors) : mixed

Each behavior is indexed by its name and should be a [[Behavior]] object, a string specifying the behavior class, or an configuration array for creating the behavior.

Parameters
$behaviors : array<string|int, mixed>

list of behaviors to be attached to the component

Tags
see
attachBehavior()

behaviors()

Returns a list of behaviors that this component should behave as.

public behaviors() : array<string|int, mixed>

Child classes may override this method to specify the behaviors they want to behave as.

The return value of this method should be an array of behavior objects or configurations indexed by behavior names. A behavior configuration can be either a string specifying the behavior class or an array of the following structure:

'behaviorName' => [
    'class' => 'BehaviorClass',
    'property1' => 'value1',
    'property2' => 'value2',
]

Note that a behavior class must extend from [[Behavior]]. Behaviors can be attached using a name or anonymously. When a name is used as the array key, using this name, the behavior can later be retrieved using [[getBehavior()]] or be detached using [[detachBehavior()]]. Anonymous behaviors can not be retrieved or detached.

Behaviors declared in this method will be attached to the component automatically (on demand).

Return values
array<string|int, mixed>

the behavior configurations.

canGetProperty()

Returns a value indicating whether a property can be read.

public canGetProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool

A property can be read if:

  • the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a readable property of the given name (when $checkBehaviors is true).
Parameters
$name : string

the property name

$checkVars : bool = true

whether to treat member variables as properties

$checkBehaviors : bool = true

whether to treat behaviors' properties as properties of this component

Tags
see
canSetProperty()
Return values
bool

whether the property can be read

canSetProperty()

Returns a value indicating whether a property can be set.

public canSetProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool

A property can be written if:

  • the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a writable property of the given name (when $checkBehaviors is true).
Parameters
$name : string

the property name

$checkVars : bool = true

whether to treat member variables as properties

$checkBehaviors : bool = true

whether to treat behaviors' properties as properties of this component

Tags
see
canGetProperty()
Return values
bool

whether the property can be written

className()

Returns the fully qualified name of this class.

public static className() : string
Tags
deprecated

since 2.0.14. On PHP >=5.5, use ::class instead.

Return values
string

the fully qualified name of this class.

composeHeaderLines()

Composes raw header lines from [[headers]].

public composeHeaderLines() : array<string|int, mixed>

Each line will be a string in format: 'header-name: value'.

Return values
array<string|int, mixed>

raw header lines.

detachBehavior()

Detaches a behavior from the component.

public detachBehavior(string $name) : Behavior|null

The behavior's [[Behavior::detach()]] method will be invoked.

Parameters
$name : string

the behavior's name.

Return values
Behavior|null

the detached behavior. Null if the behavior does not exist.

detachBehaviors()

Detaches all behaviors from the component.

public detachBehaviors() : mixed

ensureBehaviors()

Makes sure that the behaviors declared in [[behaviors()]] are attached to this component.

public ensureBehaviors() : mixed

getBehavior()

Returns the named behavior object.

public getBehavior(string $name) : Behavior|null
Parameters
$name : string

the behavior name

Return values
Behavior|null

the behavior object, or null if the behavior does not exist

getBehaviors()

Returns all behaviors attached to this component.

public getBehaviors() : array<string|int, Behavior>
Return values
array<string|int, Behavior>

list of behaviors attached to this component

getContent()

Returns HTTP message raw content.

public getContent() : string
Return values
string

raw body.

getCookies()

Returns the cookie collection.

public getCookies() : CookieCollection|array<string|int, Cookie>

The cookie collection contains the cookies associated with HTTP message.

Return values
CookieCollection|array<string|int, Cookie>

the cookie collection.

getData()

Returns the data fields, parsed from raw content.

public getData() : mixed
Return values
mixed

content data fields.

getFormat()

Returns body format.

public getFormat() : string
Return values
string

body format name.

getHeaders()

Returns the header collection.

public getHeaders() : HeaderCollection

The header collection contains the HTTP headers associated with HTTP message.

Return values
HeaderCollection

the header collection

hasContent()

Checks if content with provided name exists

public hasContent(mixed $key) : bool
Parameters
$key : mixed

string Name of the content parameter

Tags
since
2.0.10
Return values
bool

hasCookies()

Checks of HTTP message contains any cookie.

public hasCookies() : bool

Using this method you are able to check cookie presence without instantiating [[CookieCollection]].

Return values
bool

whether message contains any cookie.

hasEventHandlers()

Returns a value indicating whether there is any handler attached to the named event.

public hasEventHandlers(string $name) : bool
Parameters
$name : string

the event name

Return values
bool

whether there is any handler attached to the event.

hasHeaders()

Checks of HTTP message contains any header.

public hasHeaders() : bool

Using this method you are able to check cookie presence without instantiating [[HeaderCollection]].

Return values
bool

whether message contains any header.

hasMethod()

Returns a value indicating whether a method is defined.

public hasMethod(string $name[, bool $checkBehaviors = true ]) : bool

A method is defined if:

  • the class has a method with the specified name
  • an attached behavior has a method with the given name (when $checkBehaviors is true).
Parameters
$name : string

the property name

$checkBehaviors : bool = true

whether to treat behaviors' methods as methods of this component

Return values
bool

whether the method is defined

hasProperty()

Returns a value indicating whether a property is defined for this component.

public hasProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool

A property is defined if:

  • the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a property of the given name (when $checkBehaviors is true).
Parameters
$name : string

the property name

$checkVars : bool = true

whether to treat member variables as properties

$checkBehaviors : bool = true

whether to treat behaviors' properties as properties of this component

Tags
see
canGetProperty()
see
canSetProperty()
Return values
bool

whether the property is defined

init()

Initializes the object.

public init() : mixed

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

off()

Detaches an existing event handler from this component.

public off(string $name[, callable|null $handler = null ]) : bool

This method is the opposite of [[on()]].

Note: in case wildcard pattern is passed for event name, only the handlers registered with this wildcard will be removed, while handlers registered with plain names matching this wildcard will remain.

Parameters
$name : string

event name

$handler : callable|null = null

the event handler to be removed. If it is null, all handlers attached to the named event will be removed.

Tags
see
on()
Return values
bool

if a handler is found and detached

on()

Attaches an event handler to an event.

public on(string $name, callable $handler[, mixed $data = null ][, bool $append = true ]) : mixed

The event handler must be a valid PHP callback. The following are some examples:

function ($event) { ... }         // anonymous function
[$object, 'handleClick']          // $object->handleClick()
['Page', 'handleClick']           // Page::handleClick()
'handleClick'                     // global function handleClick()

The event handler must be defined with the following signature,

function ($event)

where $event is an [[Event]] object which includes parameters associated with the event.

Since 2.0.14 you can specify event name as a wildcard pattern:

$component->on('event.group.*', function ($event) {
    Yii::trace($event->name . ' is triggered.');
});
Parameters
$name : string

the event name

$handler : callable

the event handler

$data : mixed = null

the data to be passed to the event handler when the event is triggered. When the event handler is invoked, this data can be accessed via [[Event::data]].

$append : bool = true

whether to append new event handler to the end of the existing handler list. If false, the new handler will be inserted at the beginning of the existing handler list.

Tags
see
off()

setContent()

Sets the HTTP message raw content.

public setContent(string $content) : $this
Parameters
$content : string

raw content.

Return values
$this

self reference.

setCookies()

Sets the cookies associated with HTTP message.

public setCookies(CookieCollection|array<string|int, Cookie>|array<string|int, mixed> $cookies) : $this
Parameters
$cookies : CookieCollection|array<string|int, Cookie>|array<string|int, mixed>

cookie collection or cookies list.

Return values
$this

self reference.

setData()

Sets the data fields, which composes message content.

public setData(mixed $data) : $this
Parameters
$data : mixed

content data fields.

Return values
$this

self reference.

setFormat()

Sets body format.

public setFormat(string $format) : $this
Parameters
$format : string

body format name.

Return values
$this

self reference.

setHeaders()

Sets the HTTP headers associated with HTTP message.

public setHeaders(array<string|int, mixed>|HeaderCollection $headers) : $this
Parameters
$headers : array<string|int, mixed>|HeaderCollection

headers collection or headers list in format: [headerName => headerValue]

Return values
$this

self reference.

toString()

Returns string representation of this HTTP message.

public toString() : string
Return values
string

the string representation of this HTTP message.

trigger()

Triggers an event.

public trigger(string $name[, Event|null $event = null ]) : mixed

This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.

Parameters
$name : string

the event name

$event : Event|null = null

the event instance. If not set, a default [[Event]] object will be created.

defaultFormat()

Returns default format name.

protected defaultFormat() : string
Return values
string

default format name.

attachBehaviorInternal()

Attaches a behavior to this component.

private attachBehaviorInternal(string|int $name, string|array<string|int, mixed>|Behavior $behavior) : Behavior
Parameters
$name : string|int

the name of the behavior. If this is an integer, it means the behavior is an anonymous one. Otherwise, the behavior is a named one and any existing behavior with the same name will be detached first.

$behavior : string|array<string|int, mixed>|Behavior

the behavior to be attached

Return values
Behavior

the attached behavior.


        
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