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Storing and fetching image data from MongoDB with PHP
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<!doctype html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
</head> | |
<body> | |
<?php | |
/* | |
<id>/[<size>]/[<crop>]/[<name>][?v] | |
original.jpg/500x300/0,0,250,250/new.png | |
> Grabs original jpg image (from data uri stored in MongoDB) | |
> Resizes to 500x300 | |
> Crops to 250x250 starting at coords 0,0 | |
> Returns a png image with a new name | |
--- | |
class Image { | |
public $_id; // file name | |
public $data; // data url | |
public $size; // file size | |
public $time; // modification | |
public $type; // mime | |
} | |
*/ | |
class Item { | |
public $_id; | |
function __construct(array $fields = array()) { | |
foreach ($fields as $field => $value) { | |
$this->$field = stripslashes($value); | |
} | |
if (empty($this->_id)) { | |
$this->_id = (string) new ItemID; | |
} | |
} | |
} | |
class ItemID { | |
function __tostring() { | |
$template = '%04X%04X-%04X-%04X-%04X-%04X%04X%04X'; | |
return sprintf( | |
$template, | |
mt_rand(0, 65535), | |
mt_rand(0, 65535), | |
mt_rand(0, 65535), | |
mt_rand(16384, 20479), | |
mt_rand(32768, 49151), | |
mt_rand(0, 65535), | |
mt_rand(0, 65535), | |
mt_rand(0, 65535) | |
); | |
} | |
} | |
$mong = new Mongo; | |
$db = $mong->test; | |
function parseQuery( $template ) | |
{ | |
$values = array_slice( func_get_args(), 1 ); | |
$query = vsprintf( $template, $values ); | |
$query = json_decode( $query, true ); | |
$query = var_export( $query, true ); | |
return eval("return $query;"); | |
} | |
if ($_FILES) { | |
$fileName = $_FILES['afile']['name']; | |
$fileType = $_FILES['afile']['type']; | |
$fileContent = file_get_contents($_FILES['afile']['tmp_name']); | |
$dataUrl = 'data:' . $fileType . ';base64,' . base64_encode($fileContent); | |
$item = new Item(array( | |
'name' => $fileName, | |
'type' => $fileType, | |
'data' => $dataUrl | |
)); | |
$db->images->insert($item); | |
echo "<a href=?name=$fileName&type=$fileType>$fileName</a>"; | |
} | |
if ($_GET) { | |
$fileName = $_GET['name']; | |
$fileType = $_GET['type']; | |
$query = '{"name":"%s", "type":"%s"}'; | |
header("Content-type: $fileType"); | |
$item = $db->images->findOne( parseQuery($query, $fileName, $fileType) ); | |
echo "<img src=\"{$item['data']}\">"; | |
} | |
?> | |
<form method=post> | |
<p><label>Title: <input name=title size=100></label></p> | |
<p><label>Summary:<br><textarea name=summary cols=100 rows=2></textarea></label></p> | |
<p><label>Path: <input name=path size=100></label></p> | |
<p><input type=submit value="Yep"></p> | |
</form> | |
<hr> | |
<form method=post enctype="multipart/form-data"> | |
<p><label>Image: <input type=file name="afile" accept="image/*"></p> | |
<p><input type=submit value="Upload"></p> | |
</form> | |
</body> | |
</html> |
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