src/Http/Models/En_HttpRequest.php
public function getHeader($name){
        $headers= $this->getHeaders();
        if(isset($headers[$name])){
            return $headers[$name];
        }else{
            return NULL;
        }
    }
public function getHeader($name){
        $headers= $this->getHeaders();
        if(isset($headers[$name])){
            return $headers[$name];
        }else{
            return NULL;
        }
    }
public function getHeader ( $ name ) { $ headers = $ this -> getHeaders ( ) ; if ( isset ( $ headers [ $ name ] ) ) { return $ headers [ $ name ] ; } else { return NULL ; } }
Retorna un header especifico o null si no existe
@param string $name
@return string
Retorna un header especifico o null si no existe