protected function processHeaders(array $payload, Swift_Mime_SimpleMessage $message): array
    {
        $headers = [];

        foreach ($message->getHeaders()->getAll() as $key => $value) {
            $fieldName       = $value->getFieldName();
            $excludedHeaders = ['Subject', 'Content-Type', 'MIME-Version', 'Date'];

            if (! \in_array($fieldName, $excludedHeaders, true)) {
                if ($value instanceof Swift_Mime_Headers_UnstructuredHeader) {
                    $headers[] = [
                        'Name'  => $fieldName,
                        'Value' => $value->getValue(),
                    ];
                } elseif ($value instanceof Swift_Mime_Headers_DateHeader ||
                    $value instanceof Swift_Mime_Headers_IdentificationHeader ||
                    $value instanceof Swift_Mime_Headers_ParameterizedHeader ||
                    $value instanceof Swift_Mime_Headers_PathHeader
                ) {
                    $headers[] = [
                        'Name'  => $fieldName,
                        'Value' => $value->getFieldBody(),
                    ];

                    if ($value->getFieldName() === 'Message-ID') {
                        $headers[] = [
                            'Name'  => 'X-PM-KeepID',
                            'Value' => 'true',
                        ];
                    }
                }
            }
        }

        $payload['Headers'] = $headers;

        return $payload;
    }
protected function processHeaders(array $payload, Swift_Mime_SimpleMessage $message): array
    {
        $headers = [];

        foreach ($message->getHeaders()->getAll() as $key => $value) {
            $fieldName       = $value->getFieldName();
            $excludedHeaders = ['Subject', 'Content-Type', 'MIME-Version', 'Date'];

            if (! \in_array($fieldName, $excludedHeaders, true)) {
                if ($value instanceof Swift_Mime_Headers_UnstructuredHeader) {
                    $headers[] = [
                        'Name'  => $fieldName,
                        'Value' => $value->getValue(),
                    ];
                } elseif ($value instanceof Swift_Mime_Headers_DateHeader ||
                    $value instanceof Swift_Mime_Headers_IdentificationHeader ||
                    $value instanceof Swift_Mime_Headers_ParameterizedHeader ||
                    $value instanceof Swift_Mime_Headers_PathHeader
                ) {
                    $headers[] = [
                        'Name'  => $fieldName,
                        'Value' => $value->getFieldBody(),
                    ];

                    if ($value->getFieldName() === 'Message-ID') {
                        $headers[] = [
                            'Name'  => 'X-PM-KeepID',
                            'Value' => 'true',
                        ];
                    }
                }
            }
        }

        $payload['Headers'] = $headers;

        return $payload;
    }
protected function processHeaders ( array $ payload , Swift_Mime_SimpleMessage $ message ) : array { $ headers = [ ] ; foreach ( $ message -> getHeaders ( ) -> getAll ( ) as $ key => $ value ) { $ fieldName = $ value -> getFieldName ( ) ; $ excludedHeaders = [ 'Subject' , 'Content-Type' , 'MIME-Version' , 'Date' ] ; if ( ! \ in_array ( $ fieldName , $ excludedHeaders , true ) ) { if ( $ value instanceof Swift_Mime_Headers_UnstructuredHeader ) { $ headers [ ] = [ 'Name' => $ fieldName , 'Value' => $ value -> getValue ( ) , ] ; } elseif ( $ value instanceof Swift_Mime_Headers_DateHeader || $ value instanceof Swift_Mime_Headers_IdentificationHeader || $ value instanceof Swift_Mime_Headers_ParameterizedHeader || $ value instanceof Swift_Mime_Headers_PathHeader ) { $ headers [ ] = [ 'Name' => $ fieldName , 'Value' => $ value -> getFieldBody ( ) , ] ; if ( $ value -> getFieldName ( ) === 'Message-ID' ) { $ headers [ ] = [ 'Name' => 'X-PM-KeepID' , 'Value' => 'true' , ] ; } } } } $ payload [ 'Headers' ] = $ headers ; return $ payload ; }
Applies the headers into the API Payload.

@param array                     $payload
@param \Swift_Mime_SimpleMessage $message

@return array
Applies the headers into the API Payload .