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PHP5中文手册
maxdb_affected_rowsmaxdb->affected_rows(PECL maxdb:1.0-7.6.00.38) maxdb->affected_rows — Gets the number of affected rows in a previous MaxDB operation 说明Procedural style:
int maxdb_affected_rows
( resource $link
)
Object oriented style (property): maxdb
int$affected_rows;
maxdb_affected_rows() returns the number of rows affected by the last INSERT, UPDATE, or DELETE query associated with the provided link parameter. If this number cannot be determined, this function will return -1.
The maxdb_affected_rows() function only works with queries which modify a table. In order to return the number of rows from a SELECT query, use the maxdb_num_rows() function instead. 返回值An integer greater than zero indicates the number of rows affected or retrieved. Zero indicates that no records where updated for an UPDATE statement, no rows matched the WHERE clause in the query or that no query has yet been executed. -1 indicates that the number of rows affected can not be determined. 范例Example#1 Object oriented style
<?php Example#2 Procedural style
<?php The above examples would produce the following output:
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