Pop\Pdf\Object\Info::__construct PHP Метод

    public function __construct($str = null)
    {
        // Use default settings for a new PDF object and its info object.
        if (null === $str) {
            $this->create_date = date('D, M j, Y h:i A');
            $this->mod_date = date('D, M j, Y h:i A');
            $this->data = "3 0 obj\n<</Creator(Pop PDF)/CreationDate([{pdf_create_date}])/ModDate([{pdf_mod_date}])/Author([{pdf_author}])/Title([{pdf_title}])/Subject([{pdf_subject}])/Producer(Pop PDF)>>\nendobj\n";
        } else {
            // Else, determine the info object index.
            $this->index = substr($str, 0, strpos($str, ' '));
            // Determine the Creator.
            if (strpos($str, '/Creator') !== false) {
                $crt = substr($str, strpos($str, '/Creator'));
                $crt = substr($crt, strpos($crt, '('));
                $crt = substr($crt, 0, strpos($crt, ')'));
                $crt = str_replace('(', '', $crt);
                $str = str_replace($crt, 'Pop PDF', $str);
            } else {
                $str = str_replace('>>', '/Creator(Pop PDF)>>', $str);
            }
            // Determine the CreationDate.
            if (strpos($str, '/CreationDate') !== false) {
                $dt = substr($str, strpos($str, '/CreationDate'));
                $dt = substr($dt, strpos($dt, '('));
                $dt = substr($dt, 0, strpos($dt, ')'));
                $dt = str_replace('(', '', $dt);
                $str = str_replace($dt, '[{pdf_create_date}]', $str);
                $this->create_date = $dt;
            } else {
                $str = str_replace('>>', '/CreationDate([{pdf_create_date}])>>', $str);
            }
            // Determine the ModDate.
            if (strpos($str, '/ModDate') !== false) {
                $dt = substr($str, strpos($str, '/ModDate'));
                $dt = substr($dt, strpos($dt, '('));
                $dt = substr($dt, 0, strpos($dt, ')'));
                $dt = str_replace('(', '', $dt);
                $str = str_replace($dt, '[{pdf_mod_date}]', $str);
                $this->mod_date = $dt;
            } else {
                $str = str_replace('>>', '/ModDate([{pdf_mod_date}])>>', $str);
            }
            // Determine the Author.
            if (strpos($str, '/Author') !== false) {
                $auth = substr($str, strpos($str, '/Author'));
                $auth = substr($auth, strpos($auth, '('));
                $auth = substr($auth, 0, strpos($auth, ')'));
                $auth = str_replace('(', '', $auth);
                $str = str_replace($auth, '[{pdf_author}]', $str);
                $this->author = $auth;
            } else {
                $str = str_replace('>>', '/Author([{pdf_author}])>>', $str);
            }
            // Determine the Title.
            if (strpos($str, '/Title') !== false) {
                $tle = substr($str, strpos($str, '/Title'));
                $tle = substr($tle, strpos($tle, '('));
                $tle = substr($tle, 0, strpos($tle, ')'));
                $tle = str_replace('(', '', $tle);
                $str = str_replace($tle, '[{pdf_title}]', $str);
                $this->title = $tle;
            } else {
                $str = str_replace('>>', '/Title([{pdf_title}])>>', $str);
            }
            // Determine the Subject.
            if (strpos($str, '/Subject') !== false) {
                $subj = substr($str, strpos($str, '/Subject'));
                $subj = substr($subj, strpos($subj, '('));
                $subj = substr($subj, 0, strpos($subj, ')'));
                $subj = str_replace('(', '', $subj);
                $str = str_replace($subj, '[{pdf_subject}]', $str);
                $this->subject = $subj;
            } else {
                $str = str_replace('>>', '/Subject([{pdf_subject}])>>', $str);
            }
            // Determine the Producer.
            if (strpos($str, '/Producer') !== false) {
                $prod = substr($str, strpos($str, '/Producer'));
                $prod = substr($prod, strpos($prod, '('));
                $prod = substr($prod, 0, strpos($prod, ')'));
                $prod = str_replace('(', '', $prod);
                $str = str_replace($prod, 'Moc 10 PDF', $str);
            } else {
                $str = str_replace('>>', '/Producer(Pop PDF)>>', $str);
            }
            $this->data = $str;
        }
    }