Heyyo,
Well, I know Pearl programming language cause that's apparently the programming language of BW's Mission Builder for the GTA series.
It looks like this:
Code:
:Bodyguard4FollowW
00D6: if 0
00DF: actor $Bodyguard4_For_Player driving
004D: jump if false ££Bodyguard4FollowPlCarStart
0005: $Bodyguard4_OffbikeTimer = 0.0 \\ floating-point values
0170: $Bodyguard4_Z_Angle = player $PLAYER_CHAR z_angle
00D6: if 0
0030: $Bodyguard4_Z_Angle >= 67.5 \\ floating-point values
004D: jump if false ££Bodyguard4FollowSW
00D6: if 0
0032: 112.5 >= $Bodyguard4_Z_Angle \\ floating-point values
004D: jump if false ££Bodyguard4FollowSW
0054: store player $PLAYER_CHAR position to $Bodyguard4_X_Pos $Bodyguard4_Y_Pos $Bodyguard4_Z_Pos
0009: $Bodyguard4_X_Pos += 1.6 \\ floating-point values
0009: $Bodyguard4_Y_Pos += -1.0 \\ floating-point values
00A7: car $Bodyguard4_Bike drive_to $Bodyguard4_X_Pos $Bodyguard4_Y_Pos $Bodyguard4_Z_Pos
0002: jump ££Bodyguard4FollowSpeed0
That part of my bikerbodyguard code makes the biker bodyguard figure out if it should follow the player who's facing (vaguely) West, and what offset he should use.
[EDIT]
Lol, oops, forgot to mention my next big modding project for GTA VC.. it's called: Gotham City. YEP! BATMAN! and not just that... but OLD SKOOL BATMAN! like, the 1960's batman. We've already acomplished quite a bit. Monty (Rober Yeomans) is our lead Texturer and mapper, and me (ThE_MarD) is the coder. We've also gotten help from an italian batfan who converted our batmobile from the game known as Mafia. here's a link to check out some pics n' stuff:
http://www.thebatcave.8k.com/gotham_city.htm 
I dunno PHP, n' the rest of those programming languages ... you mentioned..
I tried figuring out C++ by looking at it... right now to me it looks like a foreign language... I know it makes sence to people who know it, but I'm completely confused by it. I'm sure eventually I'll figure it out.
