/**
* Decrement a number under the key and return decremented value
*
* @param string $key Identifier for the data
* @param int $offset How much to subtract
* @return bool|int New incremented value, false otherwise
*/
public function decrement($key, $offset = 1)
{
$key = $this->_key($key);
if (!$this->client->exists($key)) {
return false;
}
return $this->client->decrby($key, $offset);
}
/**
* {@inheritDoc}
*/
public function decrby($key, $decrement)
{
return $this->predis->decrby($key, $decrement);
}
/**
* @group redis-strings
*/
public function testDecrementBy()
{
$this->assertEquals(-2, $this->client->decrby('foo', 2));
$this->assertEquals(-4, $this->client->decrby('foo', 2));
}
