diff --git a/lib/classes/api/abstract.ApiCommand.php b/lib/classes/api/abstract.ApiCommand.php
index 34d62e3b..61243365 100644
--- a/lib/classes/api/abstract.ApiCommand.php
+++ b/lib/classes/api/abstract.ApiCommand.php
@@ -432,15 +432,15 @@ abstract class ApiCommand
 	 * @param string $table
 	 * @param string $keyfield
 	 * @param int $key
-	 * @param string $op
+	 * @param string $operator
 	 * @param string $resource
 	 * @param string $extra
 	 */
-	protected static function updateResourceUsage($table = null, $keyfield = null, $key = null, $op = '+', $resource = null, $extra = null)
+	protected static function updateResourceUsage($table = null, $keyfield = null, $key = null, $operator = '+', $resource = null, $extra = null)
 	{
 		$stmt = Database::prepare("
 			UPDATE `" . $table . "`
-			SET `" . $resource . "` = `" . $resource . "` " . $op . " 1 " . $extra . "
+			SET `" . $resource . "` = `" . $resource . "` " . $operator . " 1 " . $extra . "
 			WHERE `" . $keyfield . "` = :key
 		");
 		Database::pexecute($stmt, array(
diff --git a/lib/classes/api/commands/class.FpmDaemons.php b/lib/classes/api/commands/class.FpmDaemons.php
index cd04990d..b42a0c99 100644
--- a/lib/classes/api/commands/class.FpmDaemons.php
+++ b/lib/classes/api/commands/class.FpmDaemons.php
@@ -114,7 +114,7 @@ class FpmDaemons extends ApiCommand implements ResourceEntity
 			$config_dir = $this->getParam('config_dir');
 			
 			// parameters
-			$pm = $this->getParam('pm', true, 'static');
+			$pmanager = $this->getParam('pm', true, 'static');
 			$max_children = $this->getParam('max_children', true, 0);
 			$start_servers = $this->getParam('start_servers', true, 0);
 			$min_spare_servers = $this->getParam('min_spare_servers', true, 0);
@@ -127,7 +127,7 @@ class FpmDaemons extends ApiCommand implements ResourceEntity
 			$description = validate($description, 'description', '', '', array(), true);
 			$reload_cmd = validate($reload_cmd, 'reload_cmd', '', '', array(), true);
 			$config_dir = validate($config_dir, 'config_dir', '', '', array(), true);
-			if (! in_array($pm, array(
+			if (! in_array($pmanager, array(
 				'static',
 				'dynamic',
 				'ondemand'
@@ -158,7 +158,7 @@ class FpmDaemons extends ApiCommand implements ResourceEntity
 				'desc' => $description,
 				'reload_cmd' => $reload_cmd,
 				'config_dir' => makeCorrectDir($config_dir),
-				'pm' => $pm,
+				'pm' => $pmanager,
 				'max_children' => $max_children,
 				'start_servers' => $start_servers,
 				'min_spare_servers' => $min_spare_servers,
@@ -202,7 +202,7 @@ class FpmDaemons extends ApiCommand implements ResourceEntity
 			$description = $this->getParam('description', true, $result['description']);
 			$reload_cmd = $this->getParam('reload_cmd', true, $result['reload_cmd']);
 			$config_dir = $this->getParam('config_dir', true, $result['config_dir']);
-			$pm = $this->getParam('pm', true, $result['pm']);
+			$pmanager = $this->getParam('pm', true, $result['pm']);
 			$max_children = $this->getParam('max_children', true, $result['max_children']);
 			$start_servers = $this->getParam('start_servers', true, $result['start_servers']);
 			$min_spare_servers = $this->getParam('min_spare_servers', true, $result['min_spare_servers']);
@@ -215,7 +215,7 @@ class FpmDaemons extends ApiCommand implements ResourceEntity
 			$description = validate($description, 'description', '', '', array(), true);
 			$reload_cmd = validate($reload_cmd, 'reload_cmd', '', '', array(), true);
 			$config_dir = validate($config_dir, 'config_dir', '', '', array(), true);
-			if (! in_array($pm, array(
+			if (! in_array($pmanager, array(
 				'static',
 				'dynamic',
 				'ondemand'
@@ -247,7 +247,7 @@ class FpmDaemons extends ApiCommand implements ResourceEntity
 				'desc' => $description,
 				'reload_cmd' => $reload_cmd,
 				'config_dir' => makeCorrectDir($config_dir),
-				'pm' => $pm,
+				'pm' => $pmanager,
 				'max_children' => $max_children,
 				'start_servers' => $start_servers,
 				'min_spare_servers' => $min_spare_servers,