odbc_longreadlen
(PHP 4, PHP 5, PHP 7, PHP 8)
odbc_longreadlen — Handling of LONG columns
說明
odbc_longreadlen(resource
$statement, int $length): bool Controls handling of LONG, LONGVARCHAR and LONGVARBINARY columns.
The default length can be set using the uodbc.defaultlrl php.ini directive.
參數
-
statement 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 (i.e. printed) when retrieved with odbc_result().
返回值
成功時返回 true， 或者在失敗時返回 false。
註釋
注意:
Handling of
LONGVARBINARYcolumns is also affected by odbc_binmode().