Error while passing array as function parameter in bash -

this code dealing with:

function execute {     task="$1"     servername="$2"     "$task" "${servername[@]}"   }   function someotherthing {      val=$1     echo "$val"  }   function makenecessarydirectory {      arr=("$@")     echo "${arr[@]}"  }   dem=(1 2 3 4 5)   execute someotherthing 1 execute makenecessarydirectory "${dem[@]}" 

output:

1 1 

expected output:

1 1 2 3 4 5 

how achieve this? found no error logically.

side question:

is safe receive 2nd parameter array inside execute can deal both of dependent functions, or should have explicit check inside execute?

as explained in comment

you passing array individual args execute , passing first 1 makenecessarydirectory, $@ single argument passed 1.

i way, have added comments parts have changed. minor changes should work you.

#!/bin/bash  function execute {     task="$1"     servername="$2"     "$task" "$servername"     #no longer pass array here pass servername name of array  }   function someotherthing {      val=$1     echo "$val"  }   function makenecessarydirectory {      local arr=("${!1}")      #indirect reference first arg passed function     #name of array      in "${arr[@]}";                   echo "$i"        done  }   dem=(1 2 3 4 5)   execute someotherthing 1 execute makenecessarydirectory 'dem[@]' #pass array name instead of it's contents