Collection::count
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Collection::count — Get document count
Opis
public mysql_xdevapi\Collection::count
( void
) : integer
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.
Parametry
Ta funkcja nie posiada parametrów.
Zwracane wartości
The number of documents in the collection.
Przykłady
Przykład #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());
?>
Powyższy przykład wyświetli:
int(2)
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