Help checking if player is near in one of the parts

Help and Feedback Scripting Support
#1

How do you check if one of the players is near in one of the many parts, I’ve tried to use for i, loops I just couldn’t get it to work. Please help me if you know how to do it

#2 
local function FindNearestPartToPlayer(player)
  local near_part, near_distance = nil, math.huge
  for i,v in pairs(workspace:GetDescendants()) do
      if v:IsA('BasePart') then
        local distance = player:DistanceFromCharacter(v.Position)
        if distance < near_distance then
          near_part = v
          near_distance = distance
        end
      end
  end
  return near_part
end
#3 
local players = game:GetService("Players")
local part = workspace.Part -- change to name of part

for i, v in pairs(players:GetChildren()) do
	local partPos = part.Position
	local playerDistanceFromPart = v:DistanceFromCharacter(partPos)
	print(playerDistanceFromPart)
end