TMZ has learned Richie Sambora was arrested for DUI in Laguna Beach, Calif. Law enforcement sources tell them the Bon Jovi guitarist was pulled over by the Laguna Beach PD just before 11:00 PM last night. Cops say they observed him driving erratically in a black Hummer and pulled him over. He failed numerous field sobriety tests and was detained him for DUI.

Now reports are Richie had his daughter with him. 10-year-old daughter Ava was in the car, along with another juvenile and another adult -- a woman. If Sambora was driving drunk, he could be charged with endangering the two kids.

And, police sources say, after Sambora was busted the cops called Heather Locklear, Ava's mom. We're told Heather authorized the other adult in the car to drive her daughter home.