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ibase_blob_info
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ibase_blob_info

Name

ibase_blob_info — Return information about a BLOB

Synopsis

array ibase_blob_info(blob); string blob: BLOB's internal ID in database

Returns

An array on success, FALSE on error

Description

Returns an array with elements describing various properties of blob . You obtain the correct value for blob by doing a SELECT query and fetching the respective BLOB column's content.

0, length: Total length of the BLOB.
1, numseg: Number of segments in the BLOB.
2, maxseg: Maximum length of a BLOB segment.
3, stream:
4, isnull:

Note

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

In PHP 3, the returned array was indexed both numerically and associatively. Associative indexes were not included in the module's port to PHP 4, but this functionality is likely to return in the future.

Example

Example 534. Retrieve properties of a BLOB

$con = ibase_connect("/path/to/employees.gdb", "username", "password");
$res = ibase_query("SELECT image FROM employees WHERE emp_id = 1");
$row = ibase_fetch_row($res);
$blob = $row[0];
$info = ibase_blob_info($blob);
echo "Length: $info[0]\n";
echo "Number of segments: $info[1]\n";
echo "Maximum length of a segment: $info[2]\n";
echo "Blob is stream: $info[3]\n";
echo "Blob is null: $info[4]\n";

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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.