5.9.10 CollectionFind::offset

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• CollectionFind::offset

  Skip given number of elements to be returned

Description

public mysql_xdevapi\CollectionFind mysql_xdevapi\CollectionFind::offset(integer position);

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.

Parameters

position

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

Return Values

A CollectionFind object that can be used for additional processing.

Examples

Example 5.38 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());
?>

The above example will output something similar to:

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