PHP 忒聊
綴豖
ヶ輛
fbsql_read_blob
(PHP 4 = 4.2.0)
Description
Returns: A string containing the BLOB specified by blob_handle.
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.
瞰赽 1. fbsql_read_blob() example
?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);?
See also: fbsql_create_blob(), fbsql_read_blob(), fbsql_read_clob(), and fbsql_set_lob_mode().
綴豖
れ萸
ヶ輛
fbsql_query
奻珨撰
fbsql_read_clob