How to access public const LINE_DOUBLE using string of library phppresentation

Question

i want to access LINE_DOUBLE from the Border Library of phppresentation using string "LINE_DOUBLE" have tried using constant() but no luck any other solution will be very helpful

use PhpOffice\PhpPresentation\PhpPresentation;
use PhpOffice\PhpPresentation\Style\Alignment;
use PhpOffice\PhpPresentation\Style\Bullet;
use PhpOffice\PhpPresentation\Style\Color;
use PhpOffice\PhpPresentation\IOFactory;
use PhpOffice\PhpPresentation\Style\Border;
use PhpOffice\PhpPresentation\Style\Fill;

 public function addLine($val)
        {
          $border = new Border;
          $str = "LINE_DOUBLE";
          $lineShape = $this->currentSlide->createLineShape($val["startX"],$val["startY"],$val["endX"],$val["endY"]);
          $lineShape->getBorder()
          ->setLineStyle(constant("$border::$str"))
          ->setLineWidth($val["width"])
          ->getColor()->setARGB($val["lineColor"]);     
        }

@user15398154 Welcome to Stack Overflow. Please take the [tour] to learn how Stack Overflow works and read [ask] on how to improve the quality of your question. Then [edit] your question to include the full source code you have as a [mcve], which can be tested by others. Please see: [What Do You Mean “It Doesn't Work”?](https://meta.stackexchange.com/q/147616) — Progman, May 23 '21 at 16:42
@user15398154 You might want to look at https://stackoverflow.com/questions/20952904/php-constant-not-working-with-namespace — Progman, May 23 '21 at 17:03

score 2 · Answer 1 · answered May 23 '21 at 16:52

2

There are two ways

Using constant() function

->setLineStyle(constant("Border::{$str}"))

$border is an object not class and to access the Class constant, you need Class instead of it's object

Using Reflection

$ref = new ReflectionClass('Border');
->setLineStyle($ref->getConstant($str));

Let me know, if either of them works or not

answered May 23 '21 at 16:52

Haridarshan

1,898
1
23
38

sorry but either of them is not working – user15398154 May 23 '21 at 16:58
can you check what is the output `echo constant("Border::{$str}")` or `echo $ref->getConstant($str);` – Haridarshan May 23 '21 at 17:03
no output nothing is shown – user15398154 May 23 '21 at 17:06
Which version of `PHPOffice` you're using? – Haridarshan May 23 '21 at 17:08
Am using PHPOffice `v1.17.1` and there is no `LINE_DOUBLE` constant in `Border` class. Please check you're using valid constant or not – Haridarshan May 23 '21 at 17:11
i have dowlnoaded it recently using composer.json file version is 0.6.0 – user15398154 May 23 '21 at 17:12
As I mentioned, there is no such constant in the latest version – Haridarshan May 23 '21 at 17:13
But if i avoid using string and just type ->setLineStyle(Border::LINE_DOUBLE); it is working that means there is a constant with that name – user15398154 May 23 '21 at 17:16
Can you please share PHPOffice library version from `composer.json` or `composer.lock` file – Haridarshan May 23 '21 at 17:20

score 0 · Answer 2 · answered May 23 '21 at 17:25

0

Just provide the full specified path of the obejct $str = "LINE_DOUBLE"; ->setLineStyle(constant("PhpOffice\PhpPresentation\Style\Border::$str"))

answered May 23 '21 at 17:25

user15398154

13
3

How to access public const LINE_DOUBLE using string of library phppresentation

2 Answers2