Address GD compatibility issue when using PHP < 8.0.0

fixes #3428
dompdf · Apr 15, 2024 · 572b025 · 572b025
1 parent 0e242f5
commit 572b025
Showing 1 changed file with 17 additions and 4 deletions.
diff --git a/src/Adapter/GD.php b/src/Adapter/GD.php
@@ -467,12 +467,17 @@ public function rectangle($x1, $y1, $w, $h, $color, $width, $style = [], $cap =
         imagesetthickness($this->get_image(), $width);
 
         if ($c === IMG_COLOR_STYLED) {
-            imagepolygon($this->get_image(), [
+            $points = [
                 $x1, $y1,
                 $x1 + $w, $y1,
                 $x1 + $w, $y1 + $h,
                 $x1, $y1 + $h
-            ], $c);
+            ];
+            if (version_compare(PHP_VERSION, "8.1.0", "<")) {
+                imagepolygon($this->get_image(), $points, count($points)/2, $c);
+            } else {
+                imagepolygon($this->get_image(), $points, $c);
+            }
         } else {
             imagerectangle($this->get_image(), $x1, $y1, $x1 + $w, $y1 + $h, $c);
         }
@@ -570,9 +575,17 @@ public function polygon($points, $color, $width = null, $style = [], $fill = fal
         imagesetthickness($this->get_image(), isset($width) ? $width : 0);
 
         if ($fill) {
-            imagefilledpolygon($this->get_image(), $points, $c);
+            if (version_compare(PHP_VERSION, "8.1.0", "<")) {
+                imagefilledpolygon($this->get_image(), $points, count($points)/2, $c);
+            } else {
+                imagefilledpolygon($this->get_image(), $points, $c);
+            }
         } else {
-            imagepolygon($this->get_image(), $points, $c);
+            if (version_compare(PHP_VERSION, "8.1.0", "<")) {
+                imagepolygon($this->get_image(), $points, count($points)/2, $c);
+            } else {
+                imagepolygon($this->get_image(), $points, $c);
+            }
         }
     }