print_table.php

<?php

function fprint($wx, ...$lns)
{
  foreach ($lns as $ln) {
    fwrite($wx, $ln . PHP_EOL);
  }
}

function print_table($wx, array $keys, ...$data)
{
  $id = array_reduce($data, function ($acc, Address $a) {
    return max($acc, $a['id']);
  });
  $col_widths = array_pad([], count($data) + 1, strlen(strval($id)));

  foreach ($keys as $k) {
    $col_widths[0] = max($col_widths[0], strlen($k));
  }
  foreach ($data as $i => $datum) {
    $col_idx = $i + 1;
    foreach ($keys as $k) {
      $col_widths[$col_idx] = max(
        $col_widths[$col_idx],
        strlen(strval($datum[$k]))
      );
    }
  }

  // Add a space of padding on both sides
  $col_widths = array_map(function ($x) {
    return $x + 2;
  }, $col_widths);
  // count($data) doesn't include the key column
  // add 1 for a closing separator
  $sep = str_repeat('-', array_sum($col_widths) + count($data) + 2);

  $render = function (...$values) use (&$col_widths) {
    $ln = [];

    foreach ($values as $i => $x) {
      $ln[] = str_pad(strval($x), $col_widths[$i], ' ', STR_PAD_BOTH);
    }

    return '|' . implode('|', $ln) . '|';
  };

  fprint($wx, $sep);
  fprint($wx, $render('', ...array_map(function (Address $a) {
    return $a['id'];
  }, $data)));
  fprint($wx, $sep);

  foreach ($keys as $k) {
    fprint($wx, $render($k, ...array_map(function (Address $a) use ($k) {
      return strval($a[$k]);
    }, $data)));
    fprint($wx, $sep);
  }
}