(PHP 5, PHP 7 < 7.4.0)
ibase_blob_open — Open blob for retrieving data parts
$link_identifier
, string $blob_id
) : resource|false$blob_id
) : resource|falseOpens an existing BLOB for reading.
link_identifierAn InterBase link identifier. If omitted, the last opened link is assumed.
blob_idA BLOB id.
Returns a BLOB handle for later use with
ibase_blob_get() 或者在失败时返回 false.