Comparison Not Working

[chrisio]

I have 5 variables
$band = between 1-4
$SD = 2006-11-11
$ED = 2006-11-18
$StartDate = 2006-11-02
$EndDate = 2006-12-20

I then have this Switch Statement

switch($band)
    {
    case '4':
        if($SD >= $StartDate and $ED <= $EndDate)
            {
            echo 'band:'.$band.' startdate: '.$SD.' enddate: '.$ED.' <br>';

        $rate=$rate+$row['days_overlap'] * $prices[3];

        }
    break;    
case '3':
    if($SD <> $StartDate and $ED <> $EndDate)
        {
        echo 'band'.$band.' <br>';
            $rate=$rate+$row['days_overlap'] * $prices[0];
        }
break;

case '2':
if($SD <> $StartDate and $ED <> $EndDate)
        {
        echo 'band'.$band.' <br>';
           $rate=$rate+$row['days_overlap'] * $prices[1];
           }
break;

case '1':
if($SD <> $StartDate and $ED <> $EndDate)
        {
        echo 'band'.$band.' <br>';
            $rate=$rate+$row['days_overlap'] * $prices[2];
    }

break;

default:
    $rate="dead";
}

What i want to happen is that if startdate and enddate match exactly sd and end then drop inside of case 4 and ignore all other cases otherwise if there is NO exact match ingnore case 4 and process the other cases. Does that make sense.

Thanks Chris

[wempy]

If you move the comparison outside of the switch, that should do what you want.

if (($startdate==$SD) && ($startdate==$ED) && ($enddate==$SD) && ($enddate==$ED)){
    // do case 4 stuff
}else{
    switch($band){
        case 3:
            // stuff
        break;
        case 2:
            // stuff
        break;
        case 1:
            // stuff
        break;
    }
}

[chrisio]

Ok, After messing around loads I still dont have this working reliably.

What im currently doing to evaluating if $band == 4 and $SD >= $StartDate then do something, else drop into the switch. However it just doesnt work

I have

$band = 4;
$SD = 2006-11-07;
$StartDate = 2006-06-09;

if(($band==4) && ($SD >= $row['sdate']))
   {//for some reason it drops in here}
else{

//do my switch in here
}

I cant for the life of me see how the above evaluates as true but it must be for it to drop inside of the if statment.

Help
Thanks
Chris