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(PECL mongo >= 0.8.1)
An object that can be used to store or retrieve binary data from the database.
The maximum size of a single object that can be inserted into the database is 16MB. For data that is larger than this (movies, music, Henry Kissinger's autobiography), use MongoGridFS. For data that is smaller than 16MB, you may find it easier to embed it within the document using MongoBinData.
For example, to embed an image in a document, one could write:
<?php
$profile = array(
"username" => "foobity" ,
"pic" => new MongoBinData ( file_get_contents ( "gravatar.jpg" ), MongoBinData :: GENERIC ),
);
$users -> save ( $profile );
?>
This class contains a type field, which currently gives
no additional functionality in the PHP driver or the database. There are
seven predefined types, which are defined as class constants below. For
backwards compatibility, the PHP driver uses
MongoBinData::BYTE_ARRAY
as the default; however, this
may change to MongoBinData::GENERIC
in the future.
Users are encouraged to specify a type in
MongoBinData::__construct() .
$data
[, int $type
= 2
] )MongoBinData::GENERIC
0x00
MongoBinData::FUNC
0x01
MongoBinData::BYTE_ARRAY
0x02
MongoBinData::GENERIC
).
MongoBinData::UUID
0x03
MongoBinData::UUID_RFC4122
).
MongoBinData::UUID_RFC4122
0x04
MongoBinData::MD5
0x05
MongoBinData::CUSTOM
0x80
版本 | 说明 |
---|---|
1.5.0 |
Added MongoBinData::GENERIC and
MongoBinData::UUID_RFC4122 constants.
|
[#1] sander at steffann dot nl [2010-05-27 16:04:52]
Note MongoBinData::CUSTOM has value 0x80, not 0xf0