PHP 5.3不建議使用的函數及其建議方案

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)

session_register()     (use the $_SESSION superglobal instead)

session_unregister()     (use the $_SESSION superglobal instead)

session_is_registered()    (use the $_SESSION superglobal instead)

split()    (use preg_split() instead)

spliti()   (use preg_split() with the 'i' modifier instead)

mysql_db_query()    (use mysql_select_db() and mysql_query() instead)

mysql_escape_string()     (use mysql_real_escape_string() instead)