Google

NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7">
PHP マニュアル
前のページ次のページ

fbsql_read_blob

(PHP 4 >= 4.2.0)

fbsql_read_blob -- ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‹ã‚‰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。

前のページホーム次のページ
fbsql_query上に戻るfbsql_read_clob