chdb（常量哈希数据库）

Example #1 Creating a chdb file

<?php
$data = array(
    'key1' => 'value1',
    'key2' => 'value2',
    // ...
);
chdb_create('data.chdb', $data);
?>

The above example will generate a chdb file nameddata.chdband containing the key-value pairs defined in$data.

Example #2 Loading and looking up a chdb file

<?php
$chdb = new chdb('data.chdb');
$value1 = $chdb->get('key1');
$value2 = $chdb->get('key2');
echo $value1, PHP_EOL;
echo $value2, PHP_EOL;
?>

以上例程的输出类似于：

value1
value2

chdb 
{
	/* Methods */
	public __construct ( string $pathname )
	public get ( string $key ) : string
}