Rough and naive script to find unused functions in php files

report_unused_functions.sh

#!/bin/bash

function report_unused_functions() {
  # Find the function
  # Remove the ampersands for pass by reference functions
  # Remove everything after and including the ( in the function name
  git grep -Ei '(public|private|protected) function' $1 | awk '{print $4}' | tr -d '&' | cut -f1 -d"(" | while read -r function ; do
      
    match_count="$(git grep -i $function| wc -l)"

    if [ "$match_count" -lt 2 ]; then
      echo "$function can be removed. $match_count match"
    fi
    
  done 
}