diff --git a/classes/tests/critical.php b/classes/tests/critical.php
index 95e9c2e..56be134 100644
--- a/classes/tests/critical.php
+++ b/classes/tests/critical.php
@@ -112,7 +112,7 @@ public function _reservedNames($line) {
 	 * @return	boolean	Line matches test.
 	 */
 	public function _deprecatedFunctions($line) {
-		$regex = "#(?:mysql_affected_rows|mysql_client_encoding|mysql_close|mysql_connect|mysql_create_db|mysql_data_seek|mysql_db_name|mysql_db_query|mysql_drop_db|mysql_errno|mysql_error|mysql_escape_string|mysql_fetch_array|mysql_fetch_assoc|mysql_fetch_field|mysql_fetch_lengths|mysql_fetch_object|mysql_fetch_row|mysql_field_flags|mysql_field_len|mysql_field_name|mysql_field_seek|mysql_field_table|mysql_field_type|mysql_free_result|mysql_get_client_info|mysql_get_host_info|mysql_get_proto_info|mysql_get_server_info|mysql_info|mysql_insert_id|mysql_list_dbs|mysql_list_fields|mysql_list_processes|mysql_list_tables|mysql_num_fields|mysql_num_rows|mysql_pconnect|mysql_ping|mysql_query|mysql_real_escape_string|mysql_result|mysql_select_db|mysql_set_charset|mysql_stat|mysql_tablename|mysql_thread_id|mysql_unbuffered_query|mcrypt_generic_end|mcrypt_ecb|mcrypt_cbc|mcrypt_cfb|mcrypt_ofb|set_magic_quotes_runtime|magic_quotes_runtime|set_socket_blocking)\(#i";
+		$regex = "#(?:mysql_affected_rows|mysql_client_encoding|mysql_close|mysql_connect|mysql_create_db|mysql_data_seek|mysql_db_name|mysql_db_query|mysql_drop_db|mysql_errno|mysql_error|mysql_escape_string|mysql_fetch_array|mysql_fetch_assoc|mysql_fetch_field|mysql_fetch_lengths|mysql_fetch_object|mysql_fetch_row|mysql_field_flags|mysql_field_len|mysql_field_name|mysql_field_seek|mysql_field_table|mysql_field_type|mysql_free_result|mysql_get_client_info|mysql_get_host_info|mysql_get_proto_info|mysql_get_server_info|mysql_info|mysql_insert_id|mysql_list_dbs|mysql_list_fields|mysql_list_processes|mysql_list_tables|mysql_num_fields|mysql_num_rows|mysql_pconnect|mysql_ping|mysql_query|mysql_real_escape_string|mysql_result|mysql_select_db|mysql_set_charset|mysql_stat|mysql_tablename|mysql_thread_id|mysql_unbuffered_query|mcrypt_generic_end|mcrypt_ecb|mcrypt_cbc|mcrypt_cfb|mcrypt_ofb|set_magic_quotes_runtime|magic_quotes_runtime|set_socket_blocking|\ssplit)\(#i";
 		if (preg_match($regex, $line)) {
 			return true;
 		}
diff --git a/testcases.php b/testcases.php
index ba7c478..d778c9f 100644
--- a/testcases.php
+++ b/testcases.php
@@ -122,6 +122,7 @@ trait numeric { /*...*/ }
 mysql_tablename();
 mysql_thread_id();
 mysql_unbuffered_query();
+split();
 
 // New objects cannot be assigned by reference
 class C {}