update v1.0.7.9 R.C.
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vendor/zendframework/zend-http/doc/book/zend.http.response.md
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vendor/zendframework/zend-http/doc/book/zend.http.response.md
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# The Response Class
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## Overview
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The `Zend\Http\Response` class is responsible for providing a fluent API that allows a developer to
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interact with all the various parts of an HTTP response.
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A typical HTTP Response looks like this:
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##
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## | VERSION | CODE | REASON |
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## | HEADERS |
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## | BODY |
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The first line of the response consists of the HTTP version, status code, and the reason string for
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the provided status code; this is called the Response Line. Next is a set of headers; there can be 0
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or an unlimited number of headers. The remainder of the response is the response body, which is
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typically a string of HTML that will render on the client's browser, but which can also be a place
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for request/response payload data typical of an AJAX request. More information on the structure and
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specification of an HTTP response can be found in [RFC-2616 on the W3.org
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site](http://www.w3.org/Protocols/rfc2616/rfc2616-sec6.html).
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## Quick Start
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Response objects can either be created from the provided `fromString()` factory, or, if you wish to
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have a completely empty object to start with, by simply instantiating the `Zend\Http\Response`
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class.
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```php
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use Zend\Http\Response;
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$response = Response::fromString(<<<EOS
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HTTP/1.0 200 OK
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HeaderField1: header-field-value
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HeaderField2: header-field-value2
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<html>
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<body>
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Hello World
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</body>
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</html>
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EOS);
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// OR
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$response = new Response();
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$response->setStatusCode(Response::STATUS_CODE_200);
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$response->getHeaders()->addHeaders(array(
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'HeaderField1' => 'header-field-value',
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'HeaderField2' => 'header-field-value2',
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));
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$response->setContent(<<<EOS
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<html>
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<body>
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Hello World
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</body>
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</html>
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EOS
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);
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```
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## Configuration Options
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No configuration options are available.
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## Available Methods
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**Response::fromString**
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`Response::fromString(string $string)`
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Populate object from string
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Returns `Zend\Http\Response`
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<!-- -->
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**renderStatusLine**
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`renderStatusLine()`
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Render the status line header
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Returns string
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<!-- -->
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**setHeaders**
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`setHeaders(Zend\Http\Headers $headers)`
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Provide an alternate Parameter Container implementation for headers in this object. (This is NOT the
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primary API for value setting; for that, see `getHeaders()`.)
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Returns `Zend\Http\Request`
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<!-- -->
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**getHeaders**
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`getHeaders()`
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Return the container responsible for storing HTTP headers. This container exposes the primary API
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for manipulating headers set in the HTTP response. See the section on
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Zend\\\\Http\\\\Headers<zend.http.headers> for more information.
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Returns `Zend\Http\Headers`
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<!-- -->
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**setVersion**
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`setVersion(string $version)`
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Set the HTTP version for this object, one of 1.0 or 1.1 (`Request::VERSION_10`,
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`Request::VERSION_11`).
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Returns `Zend\Http\Request`.
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<!-- -->
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**getVersion**
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`getVersion()`
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Return the HTTP version for this request
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Returns string
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<!-- -->
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**setStatusCode**
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`setStatusCode(numeric $code)`
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Set HTTP status code
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Returns `Zend\Http\Response`
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<!-- -->
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**getStatusCode**
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`getStatusCode()`
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Retrieve HTTP status code
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Returns int
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<!-- -->
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**setReasonPhrase**
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`setReasonPhrase(string $reasonPhrase)`
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Set custom HTTP status message
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Returns `Zend\Http\Response`
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<!-- -->
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**getReasonPhrase**
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`getReasonPhrase()`
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Get HTTP status message
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Returns string
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<!-- -->
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**isClientError**
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`isClientError()`
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Does the status code indicate a client error?
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Returns bool
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<!-- -->
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**isForbidden**
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`isForbidden()`
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Is the request forbidden due to ACLs?
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Returns bool
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<!-- -->
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**isInformational**
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`isInformational()`
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Is the current status "informational"?
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Returns bool
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<!-- -->
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**isNotFound**
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`isNotFound()`
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Does the status code indicate the resource is not found?
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Returns bool
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<!-- -->
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**isOk**
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`isOk()`
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Do we have a normal, OK response?
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Returns bool
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<!-- -->
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**isServerError**
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`isServerError()`
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Does the status code reflect a server error?
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Returns bool
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<!-- -->
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**isRedirect**
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`isRedirect()`
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Do we have a redirect?
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Returns bool
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<!-- -->
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**isSuccess**
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`isSuccess()`
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Was the response successful?
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Returns bool
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<!-- -->
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**decodeChunkedBody**
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`decodeChunkedBody(string $body)`
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Decode a "chunked" transfer-encoded body and return the decoded text
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Returns string
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<!-- -->
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**decodeGzip**
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`decodeGzip(string $body)`
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Decode a gzip encoded message (when Content-encoding = gzip)
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Currently requires PHP with zlib support
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Returns string
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<!-- -->
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**decodeDeflate**
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`decodeDeflate(string $body)`
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Decode a zlib deflated message (when Content-encoding = deflate)
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Currently requires PHP with zlib support
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Returns string
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<!-- -->
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**setMetadata**
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`setMetadata(string|int|array|Traversable $spec, mixed $value)`
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Set message metadata
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Non-destructive setting of message metadata; always adds to the metadata, never overwrites the
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entire metadata container.
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Returns `Zend\Stdlib\Message`
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<!-- -->
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**getMetadata**
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`getMetadata(null|string|int $key, null|mixed $default)`
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Retrieve all metadata or a single metadatum as specified by key
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Returns mixed
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<!-- -->
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**setContent**
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`setContent(mixed $value)`
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Set message content
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Returns `Zend\Stdlib\Message`
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<!-- -->
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**getContent**
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`getContent()`
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Get raw message content
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Returns mixed
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<!-- -->
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**getBody**
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`getBody()`
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Get decoded message content
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Returns mixed
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<!-- -->
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**toString**
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`toString()`
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Returns string
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## Examples
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**Generating a Response object from a string**
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```php
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use Zend\Http\Response;
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$request = Response::fromString(<<<EOS
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HTTP/1.0 200 OK
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HeaderField1: header-field-value
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HeaderField2: header-field-value2
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<html>
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<body>
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Hello World
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</body>
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</html>
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EOS);
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```
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**Generating a formatted HTTP Response from a Response object**
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```php
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use Zend\Http\Response;
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$response = new Response();
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$response->setStatusCode(Response::STATUS_CODE_200);
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$response->getHeaders()->addHeaders(array(
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'HeaderField1' => 'header-field-value',
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'HeaderField2' => 'header-field-value2',
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));
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$response->setContent(<<<EOS
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<html>
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<body>
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Hello World
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</body>
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</html>
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EOS);
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```
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