mysql_query() cannot be used for statements that contain binary data; you must use mysql_real_query() instead. (Binary data may contain the “\0” character, which mysql_query() interprets as the end of the statement string.) In addition, mysql_real_query() is faster than mysql_query() because it does not call strlen() on the statement string.
mysql_query()与mysql_real_query()
原文：http://www.cnblogs.com/zzyoucan/p/5138424.html