(PHP 4, PHP 5, PHP 7)
odbc_longreadlen — Handling of LONG columns
odbc_longreadlen ( resource $result_id , int $length ) : bool
Controls handling of LONG, LONGVARCHAR and LONGVARBINARY columns. The default length can be set using the uodbc.defaultlrl php.ini directive.
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 (i.e. printed) when retrieved with odbc_result().
Returns true on success or false on failure.
Note:
Handling of
LONGVARBINARYcolumns is also affected by odbc_binmode().
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https://www.php.net/manual/en/function.odbc-longreadlen.php