ext-ta-lib

Bollinger Bands (BBANDS).

---

• Full name: ta_bbands
• Defined in: ta.stub.php

Parameters

Parameter	Type	Description
$values	float[]
$period	int	Default 5
$nbDevUp	float	Default 2.0
$nbDevDn	float	Default 2.0
$maType	int	Default TA_MA_TYPE_SMA

Return Value

**array{upper: array<int,float

null>, middle: array<int,float

null>, lower: array<int,float

null>}**