php работа с текстом

Ответ от Дмитрий Царь[гуру]
$str = "Hi ladies and gentlemans. It's a big show for all of you.";
$cutstart = "gentlemans.";
$cutend = "for";
$epos = stripos($str,$cutend);
$spos = stripos($str,$cutstart);
$newstr = trim( substr($str,$spos+strlen($cutstart),$epos-$spos-strlen($cutstart)) );
$bansymbols = array(",",":",".","/","");
if (strlen($newstr)>2) {
while (in_array(substr($newstr, strlen($newstr)-1,strlen($newstr)),$bansymbols)) {
$newstr=substr($newstr,0,-1);
}
echo $newstr;
}