odbc_num_rows Number of rows in a result


odbc_num_rows

(PHP 4, PHP 5)

odbc_num_rowsNumber of rows in a result

说明

int odbc_num_rows ( resource $result_id )

Gets the number of rows in a result. For INSERT, UPDATE and DELETE statements odbc_num_rows() returns the number of rows affected. For a SELECT clause this can be the number of rows available.

参数

result_id

The result identifier returned by odbc_exec().

返回值

Returns the number of rows in an ODBC result. This function will return -1 on error.

注释

Note:

Using odbc_num_rows() to determine the number of rows available after a SELECT will return -1 with many drivers.


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