Echo dato bestemt antal gange, minus lørdag og søndag og helligdage ...

<?php
    define ("ONEDAY", 86400);   // (60*60*24)
    $start = time();
    $end = $start+(30*ONEDAY);
    $exclude = array("10-04-2012","18-04-2012");
    for($sec=$start; $sec<$end; $sec=$sec+ONEDAY){            
        $weekday = date("D",$sec);
        $date = date("d-m-Y", $sec);
        if($weekday!='Sun' && $weekday!='Sat' && !(in_array($date, $exclude)) ) {             
            echo $date;
            echo "<br/>";
        }     
    }
?>

<?php
    define ("ONEDAY", 86400);   // (60*60*24)
    $start = time();
    $end = $start+(30*ONEDAY);
    $exclude = array("10/04","18/04");
    $str="";
    for($sec=$start; $sec<$end; $sec+=ONEDAY){            
        $weekday = date("D",$sec);
        $date = date("d/m", $sec);        
        if($weekday!='Sun' && $weekday!='Sat' && !(in_array($date, $exclude)) ) {             
            // $str = $str."".$date." - ";
            $str .="".$date." - ";
        }        
    }
    echo substr($str, 0,-3); // fjerner de sidste 3 karaktere (" - ") 
?>