Querying: matching array elements
demo->continent; $c->drop();
$c->insert( [
'name' => 'South America',
'cities' => [
[ "name" => "Buenos Aires", "population" => 13076300, "dem" => 131 ],
[ "name" => "São Paulo", "population" => 10021295, "dem" => 769 ],
]
] );
$c->insert( [
'name' => 'Asia',
'cities' => [
[ "name" => "Karachi", "population" => 11624219, "dem" => 38 ],
[ "name" => "Moscow", "population" => 10381222, "dem" => 144 ],
[ "name" => "İstanbul", "population" => 11174257, "dem" => 39 ],
]
] );
?>]]>
Continent with a city of more than 11 million people and above 100
meter.
demo->continent;
$r = $c->find( [
'cities.population' => [ '$gte' => 11000000 ],
'cities.dem' => [ '$gte' => 100 ],
] );
foreach( $r as $c ) {
echo $c['name'], "\n";
foreach( $c['cities'] as $city ) {
echo '- ', $city['name'], ': ', $city['population'], ' - ', $city['dem'], "\n";
}
}
?>]]>