diff --git a/Request.php b/Request.php
index 93374b9..30a07cb 100644
--- a/Request.php
+++ b/Request.php
@@ -30,6 +30,17 @@ public static function uclean( $input ) {
         return self::clean( \wp_unslash( $input ) );
     }
 
+    /**
+     * Fetch, unslash, and clean a variable.
+     *
+     * @param  string $val Request variable.
+     * @param  mixed  $def The default value.
+     * @return mixed The fetched value.
+     */
+    private static function fetch_var( &$val, $def = null ) {
+        return self::uclean( $val ?? $def );
+    }
+
     /**
      * Fetch a variable from the $_GET superglobal.
      *
@@ -75,13 +86,78 @@ public static function fetch_server_var( $key, $def = null ) {
     }
 
     /**
-     * Fetch, unslash, and clean a variable.
+     * Fetch a variable from the $_COOKIE superglobal.
      *
-     * @param  string $val Request variable.
+     * @param  string $key The key to fetch.
      * @param  mixed  $def The default value.
      * @return mixed The fetched value.
      */
-    private static function fetch_var( &$val, $def = null ) {
-        return self::uclean( $val ?? $def );
+    public static function fetch_cookie_var( $key, $def = null ) {
+        return self::fetch_var( $_COOKIE[ $key ], $def );
+    }
+
+    /**
+     * Fetch a variable from the $_FILES superglobal.
+     *
+     * @param  string $key The key to fetch.
+     * @param  mixed  $def The default value.
+     * @return mixed The fetched value.
+     */
+    public static function fetch_files_var( $key, $def = null ) {
+        return self::fetch_var( $_FILES[ $key ], $def );
+    }
+
+    /**
+     * Fetch `$_GET` superglobal array.
+     *
+     * @return array<string, mixed>
+     */
+    public static function fetch_get_arr() {
+        return self::fetch_var( $_GET, array() );
+    }
+
+    /**
+     * Fetch `$_POST` superglobal array.
+     *
+     * @return array<string, mixed>
+     */
+    public static function fetch_post_arr() {
+        return self::fetch_var( $_POST, array() );
+    }
+
+    /**
+     * Fetch `$_REQUEST` superglobal array.
+     *
+     * @return array<string, mixed>
+     */
+    public static function fetch_req_arr() {
+        return self::fetch_var( $_REQUEST, array() );
+    }
+
+    /**
+     * Fetch `$_SERVER` superglobal array.
+     *
+     * @return array<string, mixed>
+     */
+    public static function fetch_server_arr() {
+        return self::fetch_var( $_SERVER, array() );
+    }
+
+    /**
+     * Fetch `$_COOKIE` superglobal array.
+     *
+     * @return array<string, mixed>
+     */
+    public static function fetch_cookie_arr() {
+        return self::fetch_var( $_COOKIE, array() );
+    }
+
+    /**
+     * Fetch `$_FILES` superglobal array.
+     *
+     * @return array<string, mixed>
+     */
+    public static function fetch_files_arr() {
+        return self::fetch_var( $_FILES, array() );
     }
 }
diff --git a/composer.json b/composer.json
index d77d2c3..be75097 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,8 @@
       "XWP\\Helper\\Functions\\": "."
     },
     "files": [
-      "xwp-helper-fns.php"
+      "xwp-helper-fns.php",
+      "xwp-helper-fns-req.php"
     ]
   }
 }
diff --git a/xwp-helper-fns-req.php b/xwp-helper-fns-req.php
new file mode 100644
index 0000000..2e1a20d
--- /dev/null
+++ b/xwp-helper-fns-req.php
@@ -0,0 +1,153 @@
+<?php
+/**
+ * Request helper functions definition file.
+ *
+ * @package eXtended WordPress
+ * @subpackage Helper\Functions
+ */
+
+use XWP\Helper\Functions as f;
+
+if ( ! function_exists( 'xwp_fetch_get_var' ) ) :
+    /**
+     * Get an item of `GET` data if set, otherwise return a default value.
+     *
+     * @param  string $key GET key.
+     * @param  string $def Default value.
+     * @return mixed  Value sanitized by xwp_uclean.
+     */
+    function xwp_fetch_get_var( $key, $def = null ) {
+        return f\Request::fetch_get_var( $key, $def );
+    }
+endif;
+
+if ( ! function_exists( 'xwp_fetch_post_var' ) ) :
+    /**
+     * Get an item of `POST` data if set, otherwise return a default value.
+     *
+     * @param  string $key  POST key.
+     * @param  string $def  Default value.
+     * @return mixed  Value sanitized by xwp_uclean.
+     */
+    function xwp_fetch_post_var( $key, $def = null ) {
+        return f\Request::fetch_post_var( $key, $def );
+    }
+endif;
+
+if ( ! function_exists( 'xwp_fetch_req_var' ) ) :
+    /**
+     * Get an item of `REQUEST`data if set, otherwise return a default value.
+     *
+     * @param  string $key  REQUEST key.
+     * @param  string $def  Default value.
+     * @return mixed  Value sanitized by xwp_uclean.
+     */
+    function xwp_fetch_req_var( $key, $def = null ) {
+        return f\Request::fetch_req_var( $key, $def );
+    }
+endif;
+
+if ( ! function_exists( 'xwp_fetch_server_var' ) ) :
+    /**
+     * Get an item of `SERVER` data if set, otherwise return a default value.
+     *
+     * @param  string $key  SERVER key.
+     * @param  string $def  Default value.
+     * @return mixed  Value sanitized by xwp_uclean.
+     */
+    function xwp_fetch_server_var( $key, $def = null ) {
+        return f\Request::fetch_server_var( $key, $def );
+    }
+endif;
+
+if ( ! function_exists( 'xwp_fetch_cookie_var' ) ) :
+    /**
+     * Get an item of `COOKIE` data if set, otherwise return a default value.
+     *
+     * @param  string $key  COOKIE key.
+     * @param  string $def  Default value.
+     * @return mixed  Value sanitized by xwp_uclean.
+     */
+    function xwp_fetch_cookie_var( $key, $def = null ) {
+        return f\Request::fetch_cookie_var( $key, $def );
+    }
+endif;
+
+if ( ! function_exists( 'xwp_fetch_files_var' ) ) :
+    /**
+     * Get an item of `FILES` data if set, otherwise return a default value.
+     *
+     * @param  string $key  FILES key.
+     * @param  string $def  Default value.
+     * @return mixed  Value sanitized by xwp_uclean.
+     */
+    function xwp_fetch_files_var( $key, $def = null ) {
+        return f\Request::fetch_files_var( $key, $def );
+    }
+endif;
+
+if ( ! function_exists( 'xwp_get_arr' ) ) :
+    /**
+     * Get the unslashed and cleaned $_GET array.
+     *
+     * @return array<string, mixed>
+     */
+    function xwp_get_arr(): array {
+        return f\Request::fetch_get_arr();
+    }
+endif;
+
+if ( ! function_exists( 'xwp_post_arr' ) ) :
+    /**
+     * Get the unslashed and cleaned $_POST array.
+     *
+     * @return array<string, mixed>
+     */
+    function xwp_post_arr(): array {
+        return f\Request::fetch_post_arr();
+    }
+endif;
+
+if ( ! function_exists( 'xwp_req_arr' ) ) :
+    /**
+     * Get the unslashed and cleaned $_REQUEST array.
+     *
+     * @return array<string, mixed>
+     */
+    function xwp_req_arr(): array {
+        return f\Request::fetch_req_arr();
+    }
+endif;
+
+if ( ! function_exists( 'xwp_server_arr' ) ) :
+    /**
+     * Get the unslashed and cleaned $_SERVER array.
+     *
+     * @return array<string, mixed>
+     */
+    function xwp_server_arr(): array {
+        return f\Request::fetch_server_arr();
+    }
+endif;
+
+if ( ! function_exists( 'xwp_cookie_arr' ) ) :
+    /**
+     * Get the unslashed and cleaned $_COOKIE array.
+     *
+     * @return array<string, mixed>
+     */
+    function xwp_cookie_arr(): array {
+        return f\Request::fetch_cookie_arr();
+    }
+endif;
+
+if ( ! function_exists( 'xwp_files_arr' ) ) :
+    /**
+     * Get the unslashed and cleaned $_FILES array.
+     *
+     * @return array<string, mixed>
+     */
+    function xwp_files_arr(): array {
+        return f\Request::fetch_files_arr();
+    }
+endif;
diff --git a/xwp-helper-fns.php b/xwp-helper-fns.php
index e0c4e5f..4b5a4f0 100644
--- a/xwp-helper-fns.php
+++ b/xwp-helper-fns.php
@@ -44,7 +44,6 @@ function wp_array_flatmap( callable $callback, array $input_array ) {
 	}
 endif;
 
-
 if ( ! function_exists( 'wp_array_flatmap_assoc' ) ) :
     /**
      * Flatten and map an associative array of arrays.
@@ -62,7 +61,6 @@ function wp_array_flatmap( callable $callback, array $input_array ) {
     function wp_array_flatmap_assoc( callable $callback, array $input, string $key, bool $unkey = true ) {
         return f\Array_Extra::flatmap_assoc( $callback, $input, $key, $unkey );
     }
-
 endif;
 
 if ( ! function_exists( 'wp_array_diff_assoc' ) ) :
@@ -157,8 +155,6 @@ function xwp_remove_hook_callbacks(
     }
 endif;
 
-
-
 if ( ! function_exists( 'xwp_clean' ) ) :
     /**
      * Clean variables using sanitize_text_field. Arrays are cleaned recursively.
@@ -185,59 +181,6 @@ function xwp_uclean( $input ) {
 	}
 endif;
 
-if ( ! function_exists( 'xwp_fetch_get_var' ) ) :
-    /**
-     * Get an item of `GET` data if set, otherwise return a default value.
-     *
-     * @param  string $key GET key.
-     * @param  string $def Default value.
-     * @return mixed  Value sanitized by xwp_uclean.
-     */
-    function xwp_fetch_get_var( $key, $def = null ) {
-        return f\Request::fetch_get_var( $key, $def );
-    }
-endif;
-
-if ( ! function_exists( 'xwp_fetch_post_var' ) ) :
-    /**
-     * Get an item of `POST` data if set, otherwise return a default value.
-     *
-     * @param  string $key  POST key.
-     * @param  string $def  Default value.
-     * @return mixed  Value sanitized by xwp_uclean.
-     */
-    function xwp_fetch_post_var( $key, $def = null ) {
-        return f\Request::fetch_post_var( $key, $def );
-    }
-endif;
-
-if ( ! function_exists( 'xwp_fetch_req_var' ) ) :
-    /**
-     * Get an item of `REQUEST`data if set, otherwise return a default value.
-     *
-     * @param  string $key  REQUEST key.
-     * @param  string $def  Default value.
-     * @return mixed  Value sanitized by xwp_uclean.
-     */
-    function xwp_fetch_req_var( $key, $def = null ) {
-        return f\Request::fetch_req_var( $key, $def );
-    }
-endif;
-
-if ( ! function_exists( 'xwp_fetch_server_var' ) ) :
-    /**
-     * Get an item of `SERVER` data if set, otherwise return a default value.
-     *
-     * @param  string $key  SERVER key.
-     * @param  string $def  Default value.
-     * @return mixed  Value sanitized by xwp_uclean.
-     */
-    function xwp_fetch_server_var( $key, $def = null ) {
-        return f\Request::fetch_server_var( $key, $def );
-    }
-endif;
-
-
 if ( ! function_exists( 'xwp_format_term_name' ) ) :
     /**
      * Format a term name with term parents.