odbc_longreadlen

(PHP 4, PHP 5, PHP 7)

odbc_longreadlen — Handling of LONG columns

bool odbc_longreadlen ( resource $result_id , int $length )

Enables handling of LONG and LONGVARBINARY columns.

result_id: The result identifier.
length: The number of bytes returned to PHP is controlled by the parameter length. If it is set to 0, Long column data is passed through to the client.

成功时返回 TRUE，或者在失败时返回 FALSE。

Note:
Handling of LONGVARBINARY columns is also affected by odbc_binmode().