CollectionFind::offset

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CollectionFind::offset — Skip given number of elements to be returned

Description

public mysql_xdevapi\CollectionFind::offset(int $position): mysql_xdevapi\CollectionFind

Skip (offset) these number of elements that otherwise would be returned by the find operation. Use with the limit() method.

Defining an offset larger than the result set size results in an empty set.

Liste de paramètres

position: Number of elements to skip for the limit() operation.

Valeurs de retour

A CollectionFind object that can be used for additional processing.

Exemples

Exemple #1 mysql_xdevapi\CollectionFind::offset() example

<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$session->sql("DROP DATABASE IF EXISTS addressbook")->execute();
$session->sql("CREATE DATABASE addressbook")->execute();

$schema = $session->getSchema("addressbook");
$create = $schema->createCollection("people");
$create
  ->add('{"name": "Alfred", "age": 18, "job": "Butler"}')
  ->execute();
$create
  ->add('{"name": "Reginald", "age": 42, "job": "Butler"}')
  ->execute();

// ...

$collection = $schema->getCollection("people");

$result = $collection
  ->find()
  ->sort('age asc')
  ->offset(1)
  ->limit(1)
  ->execute();

var_dump($result->fetchAll());
?>

Résultat de l'exemple ci-dessus est similaire à :

array(1) {
  [0]=>
  array(4) {
    ["_id"]=>
    string(28) "00005b6b536100000000000000f3"
    ["age"]=>
    int(42)
    ["job"]=>
    string(6) "Butler"
    ["name"]=>
    string(8) "Reginald"
  }
}

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