MessageImplementation
Reusable implementation of Message.
We want to avoid creating a semantically useless hierarchy of classes as we already have a hierarchy of interfaces. We just copy implementation as a trait
Table of Contents
- $headerNames : array<string|int, mixed>
- Lookup original names from normalized names
- $headers : array<string|int, mixed>
- Original header names and content
- $protocolVersion : string
- $stream : StreamInterface|null
- Stream content of the message
- getBody() : StreamInterface
- Gets the body of the message.
- getHeader() : array<string|int, string>
- Retrieves a message header value by the given case-insensitive name.
- getHeaderLine() : string
- Retrieves a comma-separated string of the values for a single header.
- getHeaders() : array<string|int, array<string|int, string>>
- Retrieves all message header values.
- getProtocolVersion() : string
- Retrieves the HTTP protocol version as a string.
- hasHeader() : bool
- Checks if a header exists by the given case-insensitive name.
- withAddedHeader() : static
- Return an instance with the specified header appended with the given value.
- withBody() : static
- Return an instance with the specified message body.
- withHeader() : static
- Return an instance with the provided value replacing the specified header.
- withoutHeader() : static
- Return an instance without the specified header.
- withProtocolVersion() : static
- Return an instance with the specified HTTP protocol version.
- checkHeaderForInvalidAsciiChars() : mixed
- Adding checks following these errata: https://github.com/php-fig/fig-standards/pull/1274/files
- getHeaderName() : string|null
- Retrieves the header name in the originally set case by the given case-insensitive name.
- setHeaderName() : mixed
- Sets the header name in its given case, so it can be retrieved later by a case-insensitive version of it.
- storeHeader() : mixed
- Store or replace a header
- unsetHeaderName() : mixed
- Unsets the header name in by the given case-insensitive name.
Properties
$headerNames
Lookup original names from normalized names
private
array<string|int, mixed>
$headerNames
= []
Keys: lowercase header names
$headers
Original header names and content
private
array<string|int, mixed>
$headers
= []
Keys: Original header names
$protocolVersion
private
string
$protocolVersion
= '1.1'
$stream
Stream content of the message
private
StreamInterface|null
$stream
The stream
Methods
getBody()
Gets the body of the message.
public
getBody() : StreamInterface
Return values
StreamInterface —Returns the body as a stream.
getHeader()
Retrieves a message header value by the given case-insensitive name.
public
getHeader(string $name) : array<string|int, string>
This method returns an array of all the header values of the given case-insensitive header name.
If the header does not appear in the message, this method MUST return an empty array.
Parameters
- $name : string
-
Case-insensitive header field name.
Return values
array<string|int, string> —An array of string values as provided for the given header. If the header does not appear in the message, this method MUST return an empty array.
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.
If the header does not appear in the message, this method MUST return an empty string.
Parameters
- $name : string
-
Case-insensitive header field name.
Return values
string —A string of values as provided for the given header concatenated together using a comma. If the header does not appear in the message, this method MUST return an empty string.
getHeaders()
Retrieves all message header values.
public
getHeaders() : array<string|int, array<string|int, string>>
The keys represent the header name as it will be sent over the wire, and each value is an array of strings associated with the header.
// Represent the headers as a string
foreach ($message->getHeaders() as $name => $values) {
echo $name . ": " . implode(", ", $values);
}
// Emit headers iteratively:
foreach ($message->getHeaders() as $name => $values) {
foreach ($values as $value) {
header(sprintf('%s: %s', $name, $value), false);
}
}
While header names are not case-sensitive, getHeaders() will preserve the exact case in which headers were originally specified.
Return values
array<string|int, array<string|int, string>> —Returns an associative array of the message's headers. Each key MUST be a header name, and each value MUST be an array of strings for that header.
getProtocolVersion()
Retrieves the HTTP protocol version as a string.
public
getProtocolVersion() : string
The string MUST contain only the HTTP version number (e.g., "1.1", "1.0").
Return values
string —HTTP protocol version.
hasHeader()
Checks if a header exists by the given case-insensitive name.
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.
withAddedHeader()
Return an instance with the specified header appended with the given value.
public
withAddedHeader(string $name, string|array<string|int, string> $value) : static
Existing values for the specified header will be maintained. The new value(s) will be appended to the existing list. If the header did not exist previously, it will be added.
This method MUST be implemented in such a way as to retain the immutability of the message, and MUST return an instance that has the new header and/or value.
Parameters
- $name : string
-
Case-insensitive header field name to add.
- $value : string|array<string|int, string>
-
Header value(s).
Tags
Return values
static —withBody()
Return an instance with the specified message body.
public
withBody(StreamInterface $body) : static
The body MUST be a StreamInterface object.
This method MUST be implemented in such a way as to retain the immutability of the message, and MUST return a new instance that has the new body stream.
Parameters
- $body : StreamInterface
-
Body.
Tags
Return values
static —withHeader()
Return an instance with the provided value replacing the specified header.
public
withHeader(string $name, string|array<string|int, string> $value) : static
While header names are case-insensitive, the casing of the header will be preserved by this function, and returned from getHeaders().
This method MUST be implemented in such a way as to retain the immutability of the message, and MUST return an instance that has the new and/or updated header and value.
Parameters
- $name : string
-
Case-insensitive header field name.
- $value : string|array<string|int, string>
-
Header value(s).
Tags
Return values
static —withoutHeader()
Return an instance without the specified header.
public
withoutHeader(string $name) : static
Header resolution MUST be done without case-sensitivity.
This method MUST be implemented in such a way as to retain the immutability of the message, and MUST return an instance that removes the named header.
Parameters
- $name : string
-
Case-insensitive header field name to remove.
Return values
static —withProtocolVersion()
Return an instance with the specified HTTP protocol version.
public
withProtocolVersion(string $version) : static
The version string MUST contain only the HTTP version number (e.g., "1.1", "1.0").
This method MUST be implemented in such a way as to retain the immutability of the message, and MUST return an instance that has the new protocol version.
Parameters
- $version : string
-
HTTP protocol version
Return values
static —checkHeaderForInvalidAsciiChars()
Adding checks following these errata: https://github.com/php-fig/fig-standards/pull/1274/files
private
checkHeaderForInvalidAsciiChars(string $name, array<string|int, string> $value) : mixed
A minimally viable validator should reject header names containing the following characters:
- NUL (0x00)
-
\r(0x0D) -
\n(0x0A) - Any character less than or equal to 0x20.
Concerning Header values the following characters should lead to a rejection:
-
- NUL (0x00)
-
\r(0x0D) -
\n(0x0A)
Parameters
- $name : string
-
the headers name.
- $value : array<string|int, string>
-
the headers value(s).
Tags
Return values
mixed —getHeaderName()
Retrieves the header name in the originally set case by the given case-insensitive name.
private
getHeaderName(string $name) : string|null
If the header name could not be found, this returns null.
Parameters
- $name : string
-
Case-insensitive header field name.
Return values
string|null —The header name in the originally set case.
setHeaderName()
Sets the header name in its given case, so it can be retrieved later by a case-insensitive version of it.
private
setHeaderName(string $name) : mixed
Parameters
- $name : string
-
Header field name.
Return values
mixed —storeHeader()
Store or replace a header
private
storeHeader(string $name, string|array<string|int, string> $value) : mixed
This modifies the copy inplace. Only use it after cloning.
Parameters
- $name : string
-
Case-insensitive header field name.
- $value : string|array<string|int, string>
-
Header value(s).
Return values
mixed —unsetHeaderName()
Unsets the header name in by the given case-insensitive name.
private
unsetHeaderName(string $name) : mixed
Parameters
- $name : string
-
Case-insensitive header field name.