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CollectionFind::offset

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CollectionFind::offsetSkip given number of elements to be returned

Descrição

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.

Parâmetros

position

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

Valor Retornado

A CollectionFind object that can be used for additional processing.

Exemplos

Exemplo #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());
?>

O exemplo acima irá imprimir algo similar 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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