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    MongoDB\BSON\ObjectId::__toString

    (mongodb >=1.0.0)

    MongoDB\BSON\ObjectId::__toString — Returns the hexidecimal representation of this ObjectId

    説明

    final public MongoDB\BSON\ObjectId::__toString(): string

    パラメータ

    この関数にはパラメータはありません。

    戻り値

    Returns the hexidecimal representation of this ObjectId.

    例

    例1 MongoDB\BSON\ObjectId::__toString() example

    <?php

    var_dump    ((string) new MongoDB\BSON\ObjectId());
    var_dump((string) new MongoDB\BSON\ObjectId('000000000000000000000001'));

    ?>

    上の例の出力は、 たとえば以下のようになります。

    string(24) "56731b49da14d8747d701211"
string(24) "000000000000000000000001"

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    User Contributed Notes 1 note

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    Jared C.
    8 years ago
    I found I had to manually call the __toString method when I was trying to populate an associative array of mongoguid => stringValue:

    $filter = [];
    $options = [];
    $this->propertyMap = [];
    try {
    $query = new \MongoDB\Driver\Query($filter, $options);
    $cursor = $this->mongo->executeQuery('MyDbName.MyColectionName', $query);
    } catch (Exception $e) {
    echo "Mongo Query failure pulling the collection" . PHP_EOL;
    echo($e->getMessage());
    die("aborting");
    }
    foreach ($cursor as $property) {
    //$this->propertyMap[$property->{_id}->__toString()] = $property->name;
    $this->propertyMap[$property->name] = $property->{_id}->__toString();
    }

    You could also do it as $property->{_id} . "" to get the same string result. Otherwise you end up with an array of MongoDB\BSON\ObjectID objects.
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