CollectionFind::offset

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CollectionFind::offsetSkip given number of elements to be returned

Opis

public mysql_xdevapi\CollectionFind::offset ( integer $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.

Parametry

position

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

Zwracane wartości

A CollectionFind object that can be used for additional processing.

Przykłady

Przykład #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());
?>

Powyższy przykład wyświetli coś podobnego do:

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