odbc_num_rows

    (PHP 4, PHP 5, PHP 7, PHP 8)

    odbc_num_rows — Number of rows in a result

    说明

    odbc_num_rows(resource $statement): int

    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

    statement

    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

    注意:

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

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