Get terminal width - Cross-platform

getTerminalCols

<?php
function getTerminalCols()
{
  $cols = 0;
  if (defined('PHP_WINDOWS_VERSION_BUILD')) {
    $cmdHandler = popen('more', 'r');
    $cmdInfo = fread($cmdHandler, 2096);
    pclose($cmdHandler);
    $cmdInfo = explode("\n", $cmdInfo);
    $cols = trim(substr($cmdInfo[9], -4, 4));
  } else {
    $cols = exec('tput cols');
  }
  return $cols;
}

echo getTerminalCols();
?>