.bashrc-phpbrew-cd-hook

# Based on https://gist.github.com/laggardkernel/6cb4e1664574212b125fbfd115fe90a4

# create a PROPMT_COMMAND equivalent to store chpwd functions
typeset -g CHPWD_COMMAND=""

_chpwd_hook() {
  shopt -s nullglob

  local f

  # run commands in CHPWD_COMMAND variable on dir change
  if [[ "$PREVPWD" != "$PWD" ]]; then
    local IFS=$';'
    for f in $CHPWD_COMMAND; do
      "$f"
    done
    unset IFS
  fi
  # refresh last working dir record
  export PREVPWD="$PWD"
}

# add `;` after _chpwd_hook if PROMPT_COMMAND is not empty
PROMPT_COMMAND="_chpwd_hook${PROMPT_COMMAND:+;$PROMPT_COMMAND}"

_phpbrew_use_on_cwd_change() {
    [ -e .php-version ] && phpbrew use `cat .php-version`
}

# On directory change
CHPWD_COMMAND="${CHPWD_COMMAND:+$CHPWD_COMMAND;}_phpbrew_use_on_cwd_change"

# On bash start
_phpbrew_use_on_cwd_change