In a sense there's no real "exact equivalent" to the PH15 engines. Basically they're D15s made for the Philippine market.

Your PH15 is closest to the D15B7 but keep in mind that engine has no VTEC. I used to own a 1999 SX8 City 1.5EXi and it had very similar characteristics to the D15B7 (same valvetrain, redline and max power output) - but I cannot claim that it's a D15B7 because it's really not.