Tuning: Standard B-Bend /-Slide H-Hold E|--------------------------------------------------------------------| B|--------------------------------------------------------------------| G|-20(B)--19(H)-16-17-19-16/17/16--14-12-12/14(H)-12--1212-14-16-14-12| D|--------------------------------------------------------------------| A|--------------------------------------------------------------------| E|--------------------------------------------------------------------| E|--------------------------------------------------------------------| B|----------------------------------10-8-8/10(H)/8--88-10-12-10-8-----| G|---20(B)--19---16-17-19-16/17/16------------------------------------| D|--------------------------------------------------------------------| A|--------------------------------------------------------------------| E|--------------------------------------------------------------------| I still don't have the ending solo but I'm working on it, hope this helps :)
https://primanota.net/misc-unsigned-bands/love-handel-phineas-and-ferb-you-snuck-your-way-right-into-my-heart-chords.htm