diff --git src/bp-groups/bp-groups-functions.php src/bp-groups/bp-groups-functions.php
index bf321c4..a1933b3 100644
--- src/bp-groups/bp-groups-functions.php
+++ src/bp-groups/bp-groups-functions.php
@@ -400,20 +400,24 @@ function groups_leave_group( $group_id, $user_id = 0 ) {
 function groups_join_group( $group_id, $user_id = 0 ) {
 	global $bp;
 
-	if ( empty( $user_id ) )
+	if ( empty( $user_id ) ) {
 		$user_id = bp_loggedin_user_id();
+	}
 
 	// Check if the user has an outstanding invite. If so, delete it.
-	if ( groups_check_user_has_invite( $user_id, $group_id ) )
+	if ( groups_check_user_has_invite( $user_id, $group_id ) ) {
 		groups_delete_invite( $user_id, $group_id );
+	}
 
 	// Check if the user has an outstanding request. If so, delete it.
-	if ( groups_check_for_membership_request( $user_id, $group_id ) )
+	if ( groups_check_for_membership_request( $user_id, $group_id ) ) {
 		groups_delete_membership_request( null, $user_id, $group_id );
+	}
 
 	// User is already a member, just return true
-	if ( groups_is_user_member( $user_id, $group_id ) )
+	if ( groups_is_user_member( $user_id, $group_id ) ) {
 		return true;
+	}
 
 	$new_member                = new BP_Groups_Member;
 	$new_member->group_id      = $group_id;
@@ -424,13 +428,15 @@ function groups_join_group( $group_id, $user_id = 0 ) {
 	$new_member->date_modified = bp_core_current_time();
 	$new_member->is_confirmed  = 1;
 
-	if ( !$new_member->save() )
+	if ( !$new_member->save() ) {
 		return false;
+	}
 
-	if ( !isset( $bp->groups->current_group ) || !$bp->groups->current_group || $group_id != $bp->groups->current_group->id )
+	if ( !isset( $bp->groups->current_group ) || !$bp->groups->current_group || $group_id != $bp->groups->current_group->id ) {
 		$group = groups_get_group( array( 'group_id' => $group_id ) );
-	else
+	} else {
 		$group = $bp->groups->current_group;
+	}
 
 	// Record this in activity streams
 	groups_record_activity( array(
@@ -1217,12 +1223,14 @@ function groups_remove_member( $user_id, $group_id ) {
 function groups_send_membership_request( $requesting_user_id, $group_id ) {
 
 	// Prevent duplicate requests
-	if ( groups_check_for_membership_request( $requesting_user_id, $group_id ) )
+	if ( groups_check_for_membership_request( $requesting_user_id, $group_id ) ) {
 		return false;
+	}
 
 	// Check if the user is already a member or is banned
-	if ( groups_is_user_member( $requesting_user_id, $group_id ) || groups_is_user_banned( $requesting_user_id, $group_id ) )
+	if ( groups_is_user_member( $requesting_user_id, $group_id ) || groups_is_user_banned( $requesting_user_id, $group_id ) ) {
 		return false;
+	}
 
 	// Check if the user is already invited - if so, simply accept invite
 	if ( groups_check_user_has_invite( $requesting_user_id, $group_id ) ) {
@@ -1323,13 +1331,15 @@ function groups_reject_membership_request( $membership_id, $user_id = 0, $group_
  * @return bool True on success, false on failure.
  */
 function groups_delete_membership_request( $membership_id, $user_id = 0, $group_id = 0 ) {
-	if ( !empty( $user_id ) && !empty( $group_id ) )
+	if ( ! empty( $user_id ) && ! empty( $group_id ) ) {
 		$membership = new BP_Groups_Member( $user_id, $group_id );
-	else
+	} else {
 		$membership = new BP_Groups_Member( false, false, $membership_id );
+	}
 
-	if ( !BP_Groups_Member::delete_request( $membership->user_id, $membership->group_id ) )
+	if ( ! BP_Groups_Member::delete_request( $membership->user_id, $membership->group_id ) ) {
 		return false;
+	}
 
 	return $membership;
 }