diff --git a/src/Standards/PEAR/Sniffs/NamingConventions/ValidVariableNameSniff.php b/src/Standards/PEAR/Sniffs/NamingConventions/ValidVariableNameSniff.php
index 48674b1e80..8bc9351285 100644
--- a/src/Standards/PEAR/Sniffs/NamingConventions/ValidVariableNameSniff.php
+++ b/src/Standards/PEAR/Sniffs/NamingConventions/ValidVariableNameSniff.php
@@ -10,12 +10,27 @@
 namespace PHP_CodeSniffer\Standards\PEAR\Sniffs\NamingConventions;
 
 use PHP_CodeSniffer\Files\File;
+use PHP_CodeSniffer\Sniffs\AbstractScopeSniff;
 use PHP_CodeSniffer\Sniffs\AbstractVariableSniff;
+use PHP_CodeSniffer\Util\Tokens;
 
 class ValidVariableNameSniff extends AbstractVariableSniff
 {
 
 
+    /**
+     * Only listen to variables within OO scopes.
+     */
+    public function __construct()
+    {
+        $scopes = Tokens::$ooScopeTokens;
+        $listen = [T_VARIABLE];
+
+        AbstractScopeSniff::__construct($scopes, $listen, false);
+
+    }//end __construct()
+
+
     /**
      * Processes class member variables.
      *
diff --git a/src/Standards/PSR2/Sniffs/Classes/PropertyDeclarationSniff.php b/src/Standards/PSR2/Sniffs/Classes/PropertyDeclarationSniff.php
index 29d7023ea9..04c5535114 100644
--- a/src/Standards/PSR2/Sniffs/Classes/PropertyDeclarationSniff.php
+++ b/src/Standards/PSR2/Sniffs/Classes/PropertyDeclarationSniff.php
@@ -11,6 +11,7 @@
 
 use Exception;
 use PHP_CodeSniffer\Files\File;
+use PHP_CodeSniffer\Sniffs\AbstractScopeSniff;
 use PHP_CodeSniffer\Sniffs\AbstractVariableSniff;
 use PHP_CodeSniffer\Util\Tokens;
 
@@ -18,6 +19,19 @@ class PropertyDeclarationSniff extends AbstractVariableSniff
 {
 
 
+    /**
+     * Only listen to variables within OO scopes.
+     */
+    public function __construct()
+    {
+        $scopes = Tokens::$ooScopeTokens;
+        $listen = [T_VARIABLE];
+
+        AbstractScopeSniff::__construct($scopes, $listen, false);
+
+    }//end __construct()
+
+
     /**
      * Processes the function tokens within the class.
      *
diff --git a/src/Standards/Squiz/Sniffs/Commenting/VariableCommentSniff.php b/src/Standards/Squiz/Sniffs/Commenting/VariableCommentSniff.php
index 76fbc6dca6..050ed88e87 100644
--- a/src/Standards/Squiz/Sniffs/Commenting/VariableCommentSniff.php
+++ b/src/Standards/Squiz/Sniffs/Commenting/VariableCommentSniff.php
@@ -10,13 +10,28 @@
 namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\Commenting;
 
 use PHP_CodeSniffer\Files\File;
+use PHP_CodeSniffer\Sniffs\AbstractScopeSniff;
 use PHP_CodeSniffer\Sniffs\AbstractVariableSniff;
 use PHP_CodeSniffer\Util\Common;
+use PHP_CodeSniffer\Util\Tokens;
 
 class VariableCommentSniff extends AbstractVariableSniff
 {
 
 
+    /**
+     * Only listen to variables within OO scopes.
+     */
+    public function __construct()
+    {
+        $scopes = Tokens::$ooScopeTokens;
+        $listen = [T_VARIABLE];
+
+        AbstractScopeSniff::__construct($scopes, $listen, false);
+
+    }//end __construct()
+
+
     /**
      * Called to process class member vars.
      *
diff --git a/src/Standards/Squiz/Sniffs/Scope/MemberVarScopeSniff.php b/src/Standards/Squiz/Sniffs/Scope/MemberVarScopeSniff.php
index 3d1c83f019..b15116701b 100644
--- a/src/Standards/Squiz/Sniffs/Scope/MemberVarScopeSniff.php
+++ b/src/Standards/Squiz/Sniffs/Scope/MemberVarScopeSniff.php
@@ -10,12 +10,27 @@
 namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\Scope;
 
 use PHP_CodeSniffer\Files\File;
+use PHP_CodeSniffer\Sniffs\AbstractScopeSniff;
 use PHP_CodeSniffer\Sniffs\AbstractVariableSniff;
+use PHP_CodeSniffer\Util\Tokens;
 
 class MemberVarScopeSniff extends AbstractVariableSniff
 {
 
 
+    /**
+     * Only listen to variables within OO scopes.
+     */
+    public function __construct()
+    {
+        $scopes = Tokens::$ooScopeTokens;
+        $listen = [T_VARIABLE];
+
+        AbstractScopeSniff::__construct($scopes, $listen, false);
+
+    }//end __construct()
+
+
     /**
      * Processes the function tokens within the class.
      *
diff --git a/src/Standards/Squiz/Sniffs/WhiteSpace/MemberVarSpacingSniff.php b/src/Standards/Squiz/Sniffs/WhiteSpace/MemberVarSpacingSniff.php
index 773d25d4f5..8840ee0cc0 100644
--- a/src/Standards/Squiz/Sniffs/WhiteSpace/MemberVarSpacingSniff.php
+++ b/src/Standards/Squiz/Sniffs/WhiteSpace/MemberVarSpacingSniff.php
@@ -10,6 +10,7 @@
 namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\WhiteSpace;
 
 use PHP_CodeSniffer\Files\File;
+use PHP_CodeSniffer\Sniffs\AbstractScopeSniff;
 use PHP_CodeSniffer\Sniffs\AbstractVariableSniff;
 use PHP_CodeSniffer\Util\Tokens;
 
@@ -31,6 +32,19 @@ class MemberVarSpacingSniff extends AbstractVariableSniff
     public $spacingBeforeFirst = 1;
 
 
+    /**
+     * Only listen to variables within OO scopes.
+     */
+    public function __construct()
+    {
+        $scopes = Tokens::$ooScopeTokens;
+        $listen = [T_VARIABLE];
+
+        AbstractScopeSniff::__construct($scopes, $listen, false);
+
+    }//end __construct()
+
+
     /**
      * Processes the function tokens within the class.
      *