Remove unused variables

paragonie · Apr 19, 2024 · 46206f9 · 46206f9
1 parent 144bd0f
commit 46206f9
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Showing 3 changed files with 9 additions and 9 deletions.
diff --git a/src/Core/Ed25519.php b/src/Core/Ed25519.php
@@ -281,7 +281,7 @@ public static function sign_detached(
 
         try {
             ParagonIE_Sodium_Compat::memzero($az);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             $az = null;
         }
         return $sig;

diff --git a/src/Core/Salsa20.php b/src/Core/Salsa20.php
@@ -175,7 +175,7 @@ public static function salsa20(
         }
         try {
             ParagonIE_Sodium_Compat::memzero($kcopy);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             $kcopy = null;
         }
         return $c;
@@ -237,7 +237,7 @@ public static function salsa20_xor_ic(
         try {
             ParagonIE_Sodium_Compat::memzero($block);
             ParagonIE_Sodium_Compat::memzero($kcopy);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             $block = null;
             $kcopy = null;
         }

diff --git a/src/File.php b/src/File.php
@@ -116,7 +116,7 @@ public static function box_open(
         try {
             ParagonIE_Sodium_Compat::memzero($nonce);
             ParagonIE_Sodium_Compat::memzero($ephKeypair);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             if (isset($ephKeypair)) {
                 unset($ephKeypair);
             }
@@ -199,7 +199,7 @@ public static function box_seal(
         try {
             ParagonIE_Sodium_Compat::memzero($nonce);
             ParagonIE_Sodium_Compat::memzero($ephKeypair);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             /** @psalm-suppress PossiblyUndefinedVariable */
             unset($ephKeypair);
         }
@@ -277,7 +277,7 @@ public static function box_seal_open(
         try {
             ParagonIE_Sodium_Compat::memzero($nonce);
             ParagonIE_Sodium_Compat::memzero($ephKeypair);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             if (isset($ephKeypair)) {
                 unset($ephKeypair);
             }
@@ -450,7 +450,7 @@ public static function secretbox_open(
         fclose($ofp);
         try {
             ParagonIE_Sodium_Compat::memzero($key);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             /** @psalm-suppress PossiblyUndefinedVariable */
             unset($key);
         }
@@ -532,7 +532,7 @@ public static function sign(
 
         try {
             ParagonIE_Sodium_Compat::memzero($az);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             $az = null;
         }
         fclose($fp);
@@ -786,7 +786,7 @@ protected static function secretbox_encrypt(
         try {
             ParagonIE_Sodium_Compat::memzero($block0);
             ParagonIE_Sodium_Compat::memzero($subkey);
-        } catch (SodiumException $ex) {
+        } catch (SodiumException) {
             $block0 = null;
             $subkey = null;
         }