CodeIgniter v4.5 API

Response extends Message
in package

Application

implements ResponseInterface uses ResponseTrait

Representation of an outgoing, server-side response.

Per the HTTP specification, this interface includes properties for each of the following:

Protocol version
Status code and reason phrase
Headers
Message body

Interfaces

ResponseInterface: Representation of an outgoing, server-side response.

Properties

$body : string|null: Message body
$bodyFormat : string: Type of format the body is in.
$cookieStore : CookieStore: CookieStore instance.
$CSP : ContentSecurityPolicy: Content security policy handler
$headerMap : array<string|int, mixed>: Holds a map of lower-case header names and their normal-case key as it is in $headers.
$headers : array<string, Header|array<int, Header>>: List of all HTTP request headers.
$protocolVersion : string: Protocol version
$reason : string: The current reason phrase for this response.
$statusCode : int: The current status code for this response.
$statusCodes : array<string|int, mixed>: HTTP status codes
$validProtocolVersions : array<string|int, mixed>: List of valid protocol versions

Methods

__construct() : mixed: Constructor
addHeader() : $this: Adds a header (not a header value) with the same name.
appendBody() : $this: Appends data to the body of the current message.
appendHeader() : $this: Adds an additional header value to any headers that accept multiple values (i.e. are an array or implement ArrayAccess)
deleteCookie() : $this: Sets a cookie to be deleted when the response is sent.
download() : DownloadResponse|null: Force a download.
getBody() : string|null: Returns the Message's body.
getCookie() : array<string, Cookie>|Cookie|null: Returns the cookie
getCookies() : array<string, Cookie>: Returns all cookies currently set.
getCookieStore() : CookieStore: Returns the `CookieStore` instance.
getCSP() : ContentSecurityPolicy
getHeader() : array<string|int, mixed>|Header|null: Returns a single header object. If multiple headers with the same name exist, then will return an array of header objects.
getHeaderLine() : string: Retrieves a comma-separated string of the values for a single header.
getHeaders() : array<string, Header>: Returns an array containing all headers.
getJSON() : string|null: Returns the current body, converted to JSON is it isn't already.
getProtocolVersion() : string: Returns the HTTP Protocol Version.
getReason() : string: Gets the response response phrase associated with the status code.
getReasonPhrase() : string: Gets the response reason phrase associated with the status code.
getStatusCode() : int: Gets the response status code.
getXML() : bool|string|null: Retrieves the current body into XML and returns it.
hasCookie() : bool: Checks to see if the Response has a specified cookie or not.
hasHeader() : bool: Determines whether a header exists.
header() : Header|array<int, Header>|null: Returns a single Header object. If multiple headers with the same name exist, then will return an array of header objects.
headers() : array<string, Header|array<int, Header>>: Returns an array containing all Headers.
noCache() : $this: Sets the appropriate headers to ensure this response is not cached by the browsers.
populateHeaders() : void: Populates the $headers array with any headers the server knows about.
prependHeader() : $this: Adds an additional header value to any headers that accept multiple values (i.e. are an array or implement ArrayAccess)
redirect() : $this: Perform a redirect to a new URL, in two flavors: header or location.
removeHeader() : $this: Removes a header from the list of headers we track.
send() : $this: Sends the output to the browser.
sendBody() : $this: Sends the Body of the message to the browser.
sendHeaders() : $this: Sends the headers of this HTTP response to the browser.
setBody() : $this: Sets the body of the current message.
setCache() : $this: A shortcut method that allows the developer to set all of the cache-control headers in one method call.
setContentType() : $this: Sets the Content Type header for this response with the mime type and, optionally, the charset.
setCookie() : $this: Set a cookie
setDate() : $this: Sets the date header
setHeader() : $this: Sets a header and it's value.
setJSON() : $this: Converts the $body into JSON and sets the Content Type header.
setLastModified() : $this: Sets the Last-Modified date header.
setLink() : $this: Set the Link Header
setProtocolVersion() : $this: Sets the HTTP protocol version.
setStatusCode() : $this: Return an instance with the specified status code and, optionally, reason phrase.
setXML() : $this: Converts $body into XML, and sets the correct Content-Type.
formatBody() : false|string: Handles conversion of the data into the appropriate format, and sets the correct Content-Type header for our response.
getHeaderName() : string: Takes a header name in any case, and returns the normal-case version of the header.
sendCookies() : void: Actually sets the cookies.
checkMultipleHeaders() : void
dispatchCookies() : void
doSetCookie() : void: Extracted call to `setcookie()` in order to run unit tests on it.
doSetRawCookie() : void: Extracted call to `setrawcookie()` in order to run unit tests on it.
hasMultipleHeaders() : bool

$body

Message body


    protected
        string|null
    $body

$bodyFormat

Type of format the body is in.


    protected
        string
    $bodyFormat
     = 'html'

Valid: html, json, xml

$cookieStore

CookieStore instance.


    protected
        CookieStore
    $cookieStore

$CSP

Content security policy handler


    protected
        ContentSecurityPolicy
    $CSP

$headerMap

Holds a map of lower-case header names and their normal-case key as it is in $headers.


    protected
        array<string|int, mixed>
    $headerMap
     = []

Used for case-insensitive header access.

$headers

List of all HTTP request headers.


    protected
        array<string, Header|array<int, Header>>
    $headers
     = []

[name => Header] or [name => [Header1, Header2]]

$protocolVersion

Protocol version


    protected
        string
    $protocolVersion

$reason

The current reason phrase for this response.


    protected
        string
    $reason
     = ''

If empty string, will use the default provided for the status code.

$statusCode

The current status code for this response.


    protected
        int
    $statusCode
     = 200

The status code is a 3-digit integer result code of the server's attempt to understand and satisfy the request.

$statusCodes

HTTP status codes


    protected
    static    array<string|int, mixed>
    $statusCodes
     = [
    // 1xx: Informational
    100 => 'Continue',
    101 => 'Switching Protocols',
    102 => 'Processing',
    // http://www.iana.org/go/rfc2518
    103 => 'Early Hints',
    // http://www.ietf.org/rfc/rfc8297.txt
    // 2xx: Success
    200 => 'OK',
    201 => 'Created',
    202 => 'Accepted',
    203 => 'Non-Authoritative Information',
    // 1.1
    204 => 'No Content',
    205 => 'Reset Content',
    206 => 'Partial Content',
    207 => 'Multi-Status',
    // http://www.iana.org/go/rfc4918
    208 => 'Already Reported',
    // http://www.iana.org/go/rfc5842
    226 => 'IM Used',
    // 1.1; http://www.ietf.org/rfc/rfc3229.txt
    // 3xx: Redirection
    300 => 'Multiple Choices',
    301 => 'Moved Permanently',
    302 => 'Found',
    // Formerly 'Moved Temporarily'
    303 => 'See Other',
    // 1.1
    304 => 'Not Modified',
    305 => 'Use Proxy',
    // 1.1
    306 => 'Switch Proxy',
    // No longer used
    307 => 'Temporary Redirect',
    // 1.1
    308 => 'Permanent Redirect',
    // 1.1; Experimental; http://www.ietf.org/rfc/rfc7238.txt
    // 4xx: Client error
    400 => 'Bad Request',
    401 => 'Unauthorized',
    402 => 'Payment Required',
    403 => 'Forbidden',
    404 => 'Not Found',
    405 => 'Method Not Allowed',
    406 => 'Not Acceptable',
    407 => 'Proxy Authentication Required',
    408 => 'Request Timeout',
    409 => 'Conflict',
    410 => 'Gone',
    411 => 'Length Required',
    412 => 'Precondition Failed',
    413 => 'Content Too Large',
    // https://www.iana.org/assignments/http-status-codes/http-status-codes.xml
    414 => 'URI Too Long',
    // https://www.iana.org/assignments/http-status-codes/http-status-codes.xml
    415 => 'Unsupported Media Type',
    416 => 'Requested Range Not Satisfiable',
    417 => 'Expectation Failed',
    418 => "I'm a teapot",
    // April's Fools joke; http://www.ietf.org/rfc/rfc2324.txt
    // 419 (Authentication Timeout) is a non-standard status code with unknown origin
    421 => 'Misdirected Request',
    // http://www.iana.org/go/rfc7540 Section 9.1.2
    422 => 'Unprocessable Content',
    // https://www.iana.org/assignments/http-status-codes/http-status-codes.xml
    423 => 'Locked',
    // http://www.iana.org/go/rfc4918
    424 => 'Failed Dependency',
    // http://www.iana.org/go/rfc4918
    425 => 'Too Early',
    // https://datatracker.ietf.org/doc/draft-ietf-httpbis-replay/
    426 => 'Upgrade Required',
    428 => 'Precondition Required',
    // 1.1; http://www.ietf.org/rfc/rfc6585.txt
    429 => 'Too Many Requests',
    // 1.1; http://www.ietf.org/rfc/rfc6585.txt
    431 => 'Request Header Fields Too Large',
    // 1.1; http://www.ietf.org/rfc/rfc6585.txt
    451 => 'Unavailable For Legal Reasons',
    // http://tools.ietf.org/html/rfc7725
    499 => 'Client Closed Request',
    // http://lxr.nginx.org/source/src/http/ngx_http_request.h#0133
    // 5xx: Server error
    500 => 'Internal Server Error',
    501 => 'Not Implemented',
    502 => 'Bad Gateway',
    503 => 'Service Unavailable',
    504 => 'Gateway Timeout',
    505 => 'HTTP Version Not Supported',
    506 => 'Variant Also Negotiates',
    // 1.1; http://www.ietf.org/rfc/rfc2295.txt
    507 => 'Insufficient Storage',
    // http://www.iana.org/go/rfc4918
    508 => 'Loop Detected',
    // http://www.iana.org/go/rfc5842
    510 => 'Not Extended',
    // http://www.ietf.org/rfc/rfc2774.txt
    511 => 'Network Authentication Required',
    // http://www.ietf.org/rfc/rfc6585.txt
    599 => 'Network Connect Timeout Error',
]

$validProtocolVersions

List of valid protocol versions


    protected
        array<string|int, mixed>
    $validProtocolVersions
     = ['1.0', '1.1', '2.0', '3.0']

__construct()

Constructor


    public
                    __construct(App $config) : mixed

The param $config is no longer used.

Parameters

$config : App

addHeader()

Adds a header (not a header value) with the same name.


    public
                    addHeader(string $name, string $value) : $this

Use this only when you set multiple headers with the same name, typically, for Set-Cookie.

Parameters

$name : string
$value : string

Return values

$this

appendBody()

Appends data to the body of the current message.


    public
                    appendBody(string $data) : $this

Parameters

$data : string

Return values

$this

appendHeader()

Adds an additional header value to any headers that accept multiple values (i.e. are an array or implement ArrayAccess)


    public
                    appendHeader(string $name, string|null $value) : $this

Parameters

$name : string
$value : string|null

Return values

$this

deleteCookie()

Sets a cookie to be deleted when the response is sent.


    public
                    deleteCookie([string $name = '' ][, string $domain = '' ][, string $path = '/' ][, string $prefix = '' ]) : $this

Parameters

$name : string = ''
$domain : string = ''
$path : string = '/'
$prefix : string = ''

Return values

$this

download()

Force a download.


    public
                    download([string $filename = '' ][, string|null $data = '' ][, bool $setMime = false ]) : DownloadResponse|null

Generates the headers that force a download to happen. And sends the file to the browser.

Parameters

$filename : string = '': The name you want the downloaded file to be named or the path to the file to send
$data : string|null = '': The data to be downloaded. Set null if the $filename is the file path
$setMime : bool = false: Whether to try and send the actual MIME type

Return values

DownloadResponse|null

getBody()

Returns the Message's body.


    public
                    getBody() : string|null

Return values

string|null

getCookie()

Returns the cookie


    public
                    getCookie([string|null $name = null ][, string $prefix = '' ]) : array<string, Cookie>|Cookie|null

Parameters

$name : string|null = null
$prefix : string = '': Cookie prefix. '': the default prefix

Return values

array<string, Cookie>|Cookie|null

getCookies()

Returns all cookies currently set.


    public
                    getCookies() : array<string, Cookie>

Return values

array<string, Cookie>

getCookieStore()

Returns the `CookieStore` instance.


    public
                    getCookieStore() : CookieStore

Return values

CookieStore

getCSP()


    public
                    getCSP() : ContentSecurityPolicy

Return values

ContentSecurityPolicy

getHeader()

Returns a single header object. If multiple headers with the same name exist, then will return an array of header objects.


    public
                    getHeader(string $name) : array<string|int, mixed>|Header|null

Use Message::header() to make room for PSR-7

Parameters

$name : string

Return values

array<string|int, mixed>|Header|null

getHeaderLine()

Retrieves a comma-separated string of the values for a single header.


    public
                    getHeaderLine(string $name) : string

This method returns all of the header values of the given case-insensitive header name as a string concatenated together using a comma.

NOTE: Not all header values may be appropriately represented using comma concatenation. For such headers, use getHeader() instead and supply your own delimiter when concatenating.

Parameters

$name : string

Return values

string

getHeaders()

Returns an array containing all headers.


    public
                    getHeaders() : array<string, Header>

Use Message::headers() to make room for PSR-7

Return values

array<string, Header> —

An array of the request headers

getJSON()

Returns the current body, converted to JSON is it isn't already.


    public
                    getJSON() : string|null

Return values

string|null

getProtocolVersion()

Returns the HTTP Protocol Version.


    public
                    getProtocolVersion() : string

Return values

string —

HTTP protocol version.

getReason()

Gets the response response phrase associated with the status code.


    public
                    getReason() : string

Use getReasonPhrase()

Return values

string

getReasonPhrase()

Gets the response reason phrase associated with the status code.


    public
                    getReasonPhrase() : string

Because a reason phrase is not a required element in a response status line, the reason phrase value MAY be null. Implementations MAY choose to return the default RFC 7231 recommended reason phrase (or those listed in the IANA HTTP Status Code Registry) for the response's status code.

Return values

string —

Reason phrase; must return an empty string if none present.

getStatusCode()

Gets the response status code.


    public
                    getStatusCode() : int

The status code is a 3-digit integer result code of the server's attempt to understand and satisfy the request.

Return values

int —

Status code.

getXML()

Retrieves the current body into XML and returns it.


    public
                    getXML() : bool|string|null

Return values

bool|string|null

hasCookie()

Checks to see if the Response has a specified cookie or not.


    public
                    hasCookie(string $name[, string|null $value = null ][, string $prefix = '' ]) : bool

Parameters

$name : string
$value : string|null = null
$prefix : string = ''

Return values

bool

hasHeader()

Determines whether a header exists.


    public
                    hasHeader(string $name) : bool

Parameters

$name : string: Case-insensitive header field name.

Return values

bool —

Returns true if any header names match the given header name using a case-insensitive string comparison. Returns false if no matching header name is found in the message.

header()

Returns a single Header object. If multiple headers with the same name exist, then will return an array of header objects.


    public
                    header(string $name) : Header|array<int, Header>|null

Parameters

$name : string

Return values

Header|array<int, Header>|null

headers()

Returns an array containing all Headers.


    public
                    headers() : array<string, Header|array<int, Header>>

Return values

array<string, Header|array<int, Header>> —

An array of the Header objects

noCache()

Sets the appropriate headers to ensure this response is not cached by the browsers.


    public
                    noCache() : $this

Return values

$this

populateHeaders()

Populates the $headers array with any headers the server knows about.


    public
                    populateHeaders() : void

prependHeader()

Adds an additional header value to any headers that accept multiple values (i.e. are an array or implement ArrayAccess)


    public
                    prependHeader(string $name, string $value) : $this

Parameters

$name : string
$value : string

Return values

$this

redirect()

Perform a redirect to a new URL, in two flavors: header or location.


    public
                    redirect(string $uri[, string $method = 'auto' ][, int|null $code = null ]) : $this

Parameters

$uri : string: The URI to redirect to
$method : string = 'auto'
$code : int|null = null: The type of redirection, defaults to 302

Return values

$this

removeHeader()

Removes a header from the list of headers we track.


    public
                    removeHeader(string $name) : $this

Parameters

$name : string

Return values

$this

send()

Sends the output to the browser.


    public
                    send() : $this

Return values

$this

sendBody()

Sends the Body of the message to the browser.


    public
                    sendBody() : $this

Return values

$this

sendHeaders()

Sends the headers of this HTTP response to the browser.


    public
                    sendHeaders() : $this

Return values

$this

setBody()

Sets the body of the current message.


    public
                    setBody(string $data) : $this

Parameters

$data : string

Return values

$this

setCache()

A shortcut method that allows the developer to set all of the cache-control headers in one method call.


    public
                    setCache([array<string|int, mixed> $options = [] ]) : $this

The options array is used to provide the cache-control directives for the header. It might look something like:

 $options = [
     'max-age'  => 300,
     's-maxage' => 900
     'etag'     => 'abcde',
 ];

Typical options are:

etag
last-modified
max-age
s-maxage
private
public
must-revalidate
proxy-revalidate
no-transform

Parameters

$options : array<string|int, mixed> = []

Return values

$this

setContentType()

Sets the Content Type header for this response with the mime type and, optionally, the charset.


    public
                    setContentType(string $mime[, string $charset = 'UTF-8' ]) : $this

Parameters

$mime : string
$charset : string = 'UTF-8'

Return values

$this

setCookie()

Set a cookie


    public
                    setCookie(array<string|int, mixed>|Cookie|string $name[, string $value = '' ][, int $expire = 0 ][, string $domain = '' ][, string $path = '/' ][, string $prefix = '' ][, bool|null $secure = null ][, bool|null $httponly = null ][, string|null $samesite = null ]) : $this

Accepts an arbitrary number of binds (up to 7) or an associative array in the first parameter containing all the values.

Parameters

$name : array<string|int, mixed>|Cookie|string: Cookie name / array containing binds / Cookie object
$value : string = '': Cookie value
$expire : int = 0: Cookie expiration time in seconds
$domain : string = '': Cookie domain (e.g.: '.yourdomain.com')
$path : string = '/': Cookie path (default: '/')
$prefix : string = '': Cookie name prefix ('': the default prefix)
$secure : bool|null = null: Whether to only transfer cookies via SSL
$httponly : bool|null = null: Whether only make the cookie accessible via HTTP (no javascript)
$samesite : string|null = null

Return values

$this

setDate()

Sets the date header


    public
                    setDate(DateTime $date) : $this

Parameters

$date : DateTime

Return values

$this

setHeader()

Sets a header and it's value.


    public
                    setHeader(string $name, array<string|int, mixed>|string|null $value) : $this

Parameters

$name : string
$value : array<string|int, mixed>|string|null

Return values

$this

setJSON()

Converts the $body into JSON and sets the Content Type header.


    public
                    setJSON(array<string|int, mixed>|object|string $body[, bool $unencoded = false ]) : $this

Parameters

$body : array<string|int, mixed>|object|string
$unencoded : bool = false

Return values

$this

setLastModified()

Sets the Last-Modified date header.


    public
                    setLastModified(DateTime|string $date) : $this

$date can be either a string representation of the date or, preferably, an instance of DateTime.

Parameters

$date : DateTime|string

Return values

$this

setLink()

Set the Link Header


    public
                    setLink(PagerInterface $pager) : $this

Parameters

$pager : PagerInterface

Return values

$this

setProtocolVersion()

Sets the HTTP protocol version.


    public
                    setProtocolVersion(string $version) : $this

Parameters

$version : string

Return values

$this

setStatusCode()

Return an instance with the specified status code and, optionally, reason phrase.


    public
                    setStatusCode(int $code[, string $reason = '' ]) : $this

If no reason phrase is specified, will default recommended reason phrase for the response's status code.

Parameters

$code : int: The 3-digit integer result code to set.
$reason : string = '': The reason phrase to use with the provided status code; if none is provided, will default to the IANA name.

Return values

$this

setXML()

Converts $body into XML, and sets the correct Content-Type.


    public
                    setXML(array<string|int, mixed>|string $body) : $this

Parameters

$body : array<string|int, mixed>|string

Return values

$this

formatBody()

Handles conversion of the data into the appropriate format, and sets the correct Content-Type header for our response.


    protected
                    formatBody(array<string|int, mixed>|object|string $body, string $format) : false|string

Parameters

$body : array<string|int, mixed>|object|string
$format : string: Valid: json, xml

Return values

false|string

getHeaderName()

Takes a header name in any case, and returns the normal-case version of the header.


    protected
                    getHeaderName(string $name) : string

Parameters

$name : string

Return values

string

sendCookies()

Actually sets the cookies.


    protected
                    sendCookies() : void

checkMultipleHeaders()


    private
                    checkMultipleHeaders(string $name) : void

Parameters

$name : string

dispatchCookies()


    private
                    dispatchCookies() : void

doSetCookie()

Extracted call to `setcookie()` in order to run unit tests on it.


    private
                    doSetCookie(string $name, string $value, array<string|int, mixed> $options) : void

Parameters

$name : string
$value : string
$options : array<string|int, mixed>

doSetRawCookie()

Extracted call to `setrawcookie()` in order to run unit tests on it.


    private
                    doSetRawCookie(string $name, string $value, array<string|int, mixed> $options) : void

Parameters

$name : string
$value : string
$options : array<string|int, mixed>

hasMultipleHeaders()


    private
                    hasMultipleHeaders(string $name) : bool

Parameters

$name : string

Return values

bool

Response extends Message in package Application implements ResponseInterface uses ResponseTrait

Tags

Table of Contents

Interfaces

Properties

Methods

Properties

$body

$bodyFormat

$cookieStore

$CSP

$headerMap

$headers

$protocolVersion

$reason

$statusCode

$statusCodes

$validProtocolVersions

Methods

__construct()

Parameters

Tags

addHeader()

Parameters

Return values

appendBody()

Parameters

Return values

appendHeader()

Parameters

Return values

deleteCookie()

Parameters

Return values

download()

Parameters

Return values

getBody()

Return values

getCookie()

Parameters

Return values

getCookies()

Return values

getCookieStore()

Return values

getCSP()

Return values

getHeader()

Parameters

Tags

Return values

getHeaderLine()

Parameters

Return values

getHeaders()

Tags

Return values

getJSON()

Tags

Return values

getProtocolVersion()

Return values

getReason()

Tags

Return values

getReasonPhrase()

Tags

Return values

getStatusCode()

Return values

getXML()

Tags

Return values

hasCookie()

Parameters

Return values

hasHeader()

Parameters

Return values

Response extends Message
in package

Application

implements ResponseInterface uses ResponseTrait