<?php
//removes, tabs, double spaces, white lines
$content = preg_replace("/[\r\n]+[\s\t]*[\r\n]+/","\n",$content); //strip blank lines (blank, with tab or whitespaces)
$content = str_replace("\r\n", " ", $content); //removes line-breaks Windowzzzzzzzzzz
$content = str_replace("\n", " ", $content);//removes line-breaks other
$content = str_replace("\t", " ", $content); //removes tabs
$content = eregi_replace(" +", " ", $content); //removes spaces
$content = trim($content);