Flanker Tom Croft won quality line-out ball and Phillips set off on a weaving run that ended with him touching down and extending the lead to 12-3 and giving the Lions the platform to let loose.
"I'm just pleased with the way I'm playing, to be honest I'm just going out there and giving my best shot," Phillips added.
"Full credit to the boys, we were far more dominant than them [the Sharks] and in the second half we opened up nicely and it was nice to get a couple of tries.
"Out here it's going to be tough, these friendly games, but it's a matter of keeping your head and keeping the cool.
"We knew that as long as we worked them hard they were going to break down and the holes were going to appear.
"We were dominant throughout the game, they never looked like scoring and the boys were superb.
"We're very pleased to keep the momentum going on the tour, another win and onwards and upwards."
Centres Brian O'Driscoll and Jamie Roberts again proved a solid midfield partnership, although later there was the worrying sight of Wales and Blues centre Roberts sitting on the sidelines with his shoulder strapped up.
But Lions head coach Ian McGeechan played down any injury concerns surrounding the centre.
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