(PHP 4 >= 4.2.0)
fbsql_read_blob -- データベースからBLOBを読み込む
説明
string
fbsql_read_blob ( string blob_handle [, resource link_identifier])
返り値: blob_handleで指定したBLOBを含む文字列。
fbsql_read_blob() reads BLOB data from the
database. If a select statement contains BLOB and/or BLOB
columns FrontBase will return the data directly when data is
fetched. This default behavior can be changed with
fbsql_set_lob_mode() so the fetch functions
will return handles to BLOB and CLOB data. If a handle is
fetched a user must call fbsql_read_blob() to
get the actual BLOB data from the database.
例 1fbsql_read_blob()の例 <?php
$link = fbsql_pconnect ("localhost", "_SYSTEM", "secret")
or die ("Could not connect");
$sql = "SELECT BLOB_COLUMN FROM BLOB_TABLE;";
$rs = fbsql_query($sql, $link);
$row_data = fbsql_fetch_row($rs);
// $row_data[0] will now contain the blob data for teh first row
fbsql_free_result($rs);
$rs = fbsql_query($sql, $link);
fbsql_set_lob_mode($rs, FBSQL_LOB_HANDLE);
$row_data = fbsql_fetch_row($rs);
// $row_data[0] will now contain a handle to the BLOB data in the first row
$blob_data = fbsql_read_blob($row_data[0]);
fbsql_free_result($rs);
?> |
|
fbsql_create_blob(),
fbsql_read_blob(),
fbsql_read_clob(),
fbsql_set_lob_mode()も参照下さい。