# fbsql_create_blob

(PHP 4 >= 4.2.0, PHP 5, PHP 7)

fbsql_create_blob — Create a BLOB

### 说明

fbsql_create_blob ( string `$blob_data` [, resource `$link_identifier` ] ) : string

Creates a BLOB from the given data.

### 参数

`blob_data`

  The BLOB data.

`link_identifier`

  由 fbsql_connect() 或 fbsql_pconnect() 返回的 FrontBase 链接标识符.

  如可选并未指定，函数会尝试查找一个到 FrontBase 服务器的开放链接，且如没有找到这样的链接，会尝试通过不带参数调用 fbsql_connect() 来创建一个。

### 返回值

Returns a resource handle to the newly created BLOB, which can be used with insert and update commands to store the BLOB in the database.

### 范例

Example #1 fbsql_create_blob() example

    <?php
    $link = fbsql_pconnect("localhost", "_SYSTEM", "secret")
        or die("Could not connect");
    $filename = "blobfile.bin";
    $fp = fopen($filename, "rb");
    $blobdata = fread($fp, filesize($filename));
    fclose($fp);

    $blobHandle = fbsql_create_blob($blobdata, $link);

    $sql = "INSERT INTO BLOB_TABLE (BLOB_COLUMN) VALUES ($blobHandle);";
    $rs = fbsql_query($sql, $link);
    ?>

### 参见

- fbsql_create_clob() - Create a CLOB
- fbsql_read_blob() - Read a BLOB from the database
- fbsql_read_clob() - Read a CLOB from the database
- fbsql_set_lob_mode() - Set the LOB retrieve mode for a FrontBase result set