<?php
/*
Plugin Name: Trim Whitespace
Description: trims leading and trailing whitespace on text fields using trim()
Author: Jeff Shields
Author URI: http://yaadev.com
Version: 1.01
Requires at least: 2.50
*/


addAction('record_presave',    'trimWhitespace');

function trimWhitespace() {
  foreach (array_keys($_REQUEST) as $name) {
    if (is_array( $_REQUEST[$name] )) { continue; } // skip arrays

    $_REQUEST[$name] = trim($_REQUEST[$name]);
  }
}