dbplus_rkeys

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9)

dbplus_rkeys — Specify new primary key for a relation

mixed dbplus_rkeys ( resource $relation , mixed $domlist )

dbplus_rkeys() will replace the current primary key for relation with the combination of domains specified by domlist .

relation: A relation opened by dbplus_open().
domlist: A combination of domains. May be passed as a single domain name string or as an array of domain names.

Returns resource on success or DBPLUS_ERR_UNKNOWN on failure.

Warning

本函数是实验性的。本函数的行为，包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。