Collection::count

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Collection::count — Get document count

Descrição

public mysql_xdevapi\Collection::count(): int

This functionality is similar to a SELECT COUNT(*) SQL operation against the MySQL server for the current schema and collection. In other words, it counts the number of documents in the collection.

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

The number of documents in the collection.

Exemplos

Exemplo #1 mysql_xdevapi\Collection::count() 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");

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

$result = $collection
  ->add(
  '{"name": "Bernie",
    "jobs": [
      {"title":"Cat Herder","Salary":42000}, 
      {"title":"Father","Salary":0}
    ],
    "hobbies": ["Sports","Making cupcakes"]}',
  '{"name": "Jane",
    "jobs": [
      {"title":"Scientist","Salary":18000}, 
      {"title":"Mother","Salary":0}
    ],
    "hobbies": ["Walking","Making pies"]}')
  ->execute();

var_dump($collection->count());
?>

O exemplo acima produzirá:

int(2)

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