(no version information, might be only in CVS)
PDOStatement::rowCount --
Returns the number of rows affected by the last SQL statement
说明
int
PDOStatement::rowCount ( void )
警告 |
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。 |
PDOStatement::rowCount() returns the number of
rows affected by the last DELETE, INSERT, or UPDATE statement
executed by the corresponding PDOStatement object.
If the last SQL statement executed by the associated
PDOStatement was a SELECT statement, some databases
may return the number of rows returned by that statement. However, this
behaviour is not guaranteed for all databases and should not be relied
on for portable applications.