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<?php
namespace Illuminate\Mail\Mailables;
use Illuminate\Support\Str;
use Illuminate\Support\Traits\Conditionable;
class Headers
{
use Conditionable;
/**
* The message's message ID.
*
* @var string|null
*/
public $messageId;
/**
* The message IDs that are referenced by the message.
*
* @var array
*/
public $references;
/**
* The message's text headers.
*
* @var array
*/
public $text;
/**
* Create a new instance of headers for a message.
*
* @param string|null $messageId
* @param array $references
* @param array $text
* @return void
*
* @named-arguments-supported
*/
public function __construct(string $messageId = null, array $references = [], array $text = [])
{
$this->messageId = $messageId;
$this->references = $references;
$this->text = $text;
}
/**
* Set the message ID.
*
* @param string $messageId
* @return $this
*/
public function messageId(string $messageId)
{
$this->messageId = $messageId;
return $this;
}
/**
* Set the message IDs referenced by this message.
*
* @param array $references
* @return $this
*/
public function references(array $references)
{
$this->references = array_merge($this->references, $references);
return $this;
}
/**
* Set the headers for this message.
*
* @param array $references
* @return $this
*/
public function text(array $text)
{
$this->text = array_merge($this->text, $text);
return $this;
}
/**
* Get the references header as a string.
*
* @return string
*/
public function referencesString(): string
{
return collect($this->references)->map(function ($messageId) {
return Str::finish(Str::start($messageId, '<'), '>');
})->implode(' ');
}
}
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