PHILADELPHIA — Before fireworks exploded above the ballpark, the Phillies bats went boom.

Greg Dobbs sparked the ninth-inning rally with a three-run homer. Cody Ransom sent the Phillies and their stay-to-the-end fans into a delirious frenzy with a two-run shot that brought them all the way back from a 7-1 deficit.

And when Ryan Howard won it with a two-run homer in the 10th, even the Phillies were stunned.

“I don’t know how to explain it,” Howard said after Philadelphia scored six runs in the ninth and rallied to beat the Cincinnati Reds 9-7 on Friday night.

With his team down five runs in the sixth, Howard told manager Charlie Manuel the Phillies could “crawl back” and win.

“I guess we scored them all at once,” a beaming Howard said.

Staked to a 7-1 lead by the ninth, Reds starter Mike Leake appeared to be cruising toward his first career complete game.

Then it all unraveled.

Dobbs went deep to chase Leake, and Ransom hit a tying homer off closer Francisco Cordero to make it 7-all.

Raul Ibanez opened the 10th with a double off Arthur Rhodes (3-3) and Howard went the opposite way for his 17th homer of the season.

“This is huge,” Howard said.

Ryan Madson (2-0) tossed a scoreless inning for the win.

Brian Schneider hit a game-ending homer in the 12th inning to give the injury-depleted Phillies a win over the Reds on Thursday.

“The last two nights have been really good. Outstanding,” Manuel said. “It puts us in a good frame of mind.”

The Phillies couldn’t solve Leake until the ninth.

Howard’s RBI single made it 7-2. After a single, Dobbs followed with a three-run homer off the right-field foul pole and the 82nd straight sellout crowd at Citizens Bank Park went wild.

Leake was finished after the longest outing of his career. Cordero retired the first batter he faced, then walked pinch-hitter Ben Francisco. Ransom followed with a drive to right-center that made it 7-all.