Testing bson_decode() and bson_encode() in PHP

dump.php

<?php

// dump.php [database] [collection] [filename]

function dump(MongoCollection $collection, $filename) {
    $file = fopen($filename, 'w');

    foreach ($collection->find() as $document) {
        fwrite($file, bson_encode($document));
    }
}

$m = new Mongo();
$collection = $m->selectCollection($argv[1], $argv[2]);
dump($collection, $argv[3]);

parse.php

<?php

// parse.php [filename]

function parse($filename) {
    $file = fopen($filename, 'r');
    $numObjects = 0;

    while (true) {
        $packedLength = fread($file, 4);

        if (feof($file)) {
            break;
        }

        $unpacked = unpack('V', $packedLength);
        $length = array_shift($unpacked);

        fseek($file, -4, SEEK_CUR);
        $object = bson_decode(fread($file, $length));

        echo json_encode($object) . "\n";
        ++$numObjects;
    }

    echo $numObjects . " objects found.\n";

    fclose($file);
}

parse($argv[1]);

test_foo.bson