The list of functions that are deprecated in PHP 5.3.0:

* call_user_method() (use call_user_func() instead)
* call_user_method_array() (use call_user_func_array() instead)
* define_syslog_variables()
* dl()
* ereg() (use preg_match() instead)
* ereg_replace() (use preg_replace() instead)
* eregi() (use preg_match() with the ‘i’ modifier instead)
* eregi_replace() (use preg_replace() with the ‘i’ modifier instead)
* set_magic_quotes_runtime() and its alias, magic_quotes_runtime()
* session_register() (use the $_SESSION superglobal instead)
* session_unregister() (use the $_SESSION superglobal instead)
* session_is_registered() (use the $_SESSION superglobal instead)
* set_socket_blocking() (use stream_set_blocking() instead)
* split() (use preg_split() instead)
* spliti() (use preg_split() with the ‘i’ modifier instead)
* sql_regcase()
* mysql_db_query() (use mysql_select_db() and mysql_query() instead)
* mysql_escape_string() (use mysql_real_escape_string() instead)
* Passing locale category names as strings is now deprecated. Use the LC_* family of constants instead.
* The is_dst parameter to mktime(). Use the new timezone handling functions instead.