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>fbsql_read_blob</H1
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></A
><P
> (PHP 4 >= 4.2.0)</P
>fbsql_read_blob -- Read a BLOB from the database</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN18395"
></A
><H2
>Description</H2
>string <B
CLASS="methodname"
>fbsql_read_blob</B
> ( string blob_handle [, resource link_identifier])<BR
></BR
><P
>
Returns: A string containing the BLOB specified by blob_handle.
</P
><P
>
<B
CLASS="function"
>fbsql_read_blob()</B
> 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
<A
HREF="function.fbsql-set-lob-mode.html"
><B
CLASS="function"
>fbsql_set_lob_mode()</B
></A
> so the fetch functions
will return handles to BLOB and CLOB data. If a handle is
fetched a user must call <B
CLASS="function"
>fbsql_read_blob()</B
> to
get the actual BLOB data from the database.
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><B
>Ejemplo 1. <B
CLASS="function"
>fbsql_read_blob()</B
> example</B
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><PRE
CLASS="php"
><?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);
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> See also: <A
HREF="function.fbsql-create-blob.html"
><B
CLASS="function"
>fbsql_create_blob()</B
></A
>,
<B
CLASS="function"
>fbsql_read_blob()</B
>,
<A
HREF="function.fbsql-read-clob.html"
><B
CLASS="function"
>fbsql_read_clob()</B
></A
>, and
<A
HREF="function.fbsql-set-lob-mode.html"
><B
CLASS="function"
>fbsql_set_lob_mode()</B
></A
>.
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