From 0eca9d6545461c897ca87cc479a5e237b3747085 Mon Sep 17 00:00:00 2001
From: Anton Rusakov <a.rusakov@gmail.com>
Date: Tue, 12 Sep 2023 17:24:26 +0100
Subject: [PATCH] [pdq][php] Fix bug in php PDQ implementation

Co-authored-by: Anton Rusakov <rusan@team.bumble.com>
---
 pdq/php/pdqhasher.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pdq/php/pdqhasher.php b/pdq/php/pdqhasher.php
index 3ec77b074..fa658ef0d 100644
--- a/pdq/php/pdqhasher.php
+++ b/pdq/php/pdqhasher.php
@@ -378,7 +378,7 @@ static function computeImageDomainQualityMetric(
       for ($j = 0; $j < 63; $j++) {
         $u = $buffer_64x64[$i][$j];
         $v = $buffer_64x64[$i][$j+1];
-        $$d = (int)((($u - $v) * 100) / 255);
+        $d = (int)((($u - $v) * 100) / 255);
         $int_gradient_sum += (int)abs($d);
       }
     }