1--TEST-- 2Test date_interval_create_from_date_string() function : null parameter 3--CREDITS-- 4Rodrigo Prado de Jesus <royopa [at] gmail [dot] com> 5--FILE-- 6<?php 7$i = date_interval_create_from_date_string(null); 8var_dump($i); 9?> 10--EXPECTF-- 11Warning: date_interval_create_from_date_string(): Unknown or bad format () at position 0 ( ): Empty string in %sdate_interval_create_from_date_string_nullparam.php on line 2 12bool(false) 13