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ibase_blob_echo
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ibase_blob_echo

Name

ibase_blob_echo — Pass a BLOB directly to output stream

Synopsis

boolean ibase_blob_echo(blob); string blob: BLOB's internal ID in database

Returns

TRUE on success, FALSE on error

Description

Passes a BLOB's contents directly to the output stream after sending all waiting headers. Return value is TRUE if the BLOB could be opened and all of its contents sent, otherwise FALSE.

Note

Available in PHP 3 since 3.0.7, PHP 4 since 4.0RC1

Example

Example 531. Output an image from database to client

// Assume that this example is saved in a file "image.php"
// and called with URL http://some.host/image.php?id=some_number
// Suppress all errors with @ so that headers don't get sent before we want
$conn = @ibase_connect("/path/to/employees.gdb", "username", "password");
$res = @ibase_query("SELECT image, image_type FROM employees WHERE emp_id = $id");
if ($row = @ibase_fetch_row($res)) {
    header("Content-Type: $row[1]");
    ibase_blob_echo($row[0]);
} else {
    // image not found in database
    header("Content-Type: image/gif");
    readfile("notfound.gif");
}

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.