Ho messo appunto un sistema di calcolo Width e Height dinamico... ma è performante?

[n0t]

L'ho messa in una funzione stand-alone,

<?php

function getResized($w, $h)
{
    $maxWidth = 450;
    $maxHeight = 300;
    
    $originalW = $w;
    $originalH = $h;
     
    if( $originalW <= $maxWidth && $originalH <= $maxHeight )
    {
        $profileTHBWidth = $originalW;
        $profileTHBHeight = $originalH;
    }
    else if( $originalW > $maxWidth || $originalH > $maxHeight )
    {
        if($originalW > $maxWidth )
        {
            $coeffW = 1;
            print "COEFF W\n";
            do
            {
                print $coeffW."%\n";
                $profileTHBWidth = $originalW-(($originalW*$coeffW)/100);
                ++$coeffW;
            } while( $profileTHBWidth > $maxWidth );
            
            $profileTHBHeight = $originalH-(($originalH*$coeffW)/100);
            
            if( $profileTHBHeight > $maxHeight )
            {
                print "COEFF H\n";
                $coeffH = $coeffW;
                do
                {
                    print $coeffH."%\n";
                    $profileTHBHeight = $originalH-(($originalH*$coeffH)/100);
                    $profileTHBWidth = $originalW-(($originalW*$coeffH)/100);
                    ++$coeffH;
                } while( $profileTHBHeight > $maxHeight );
            }
            else { /*va bene*/ }
        }
        else if( $originalH > $maxHeight )
        {
            $coeffH = 1;
            do
            {
                $profileTHBHeight = $originalH-(($originalH*$coeffH)/100);
                $profileTHBWidth = $originalW-(($originalW*$coeffH)/100);
                ++$coeffH;
            } while( $profileTHBHeight > $maxHeight );
            $profileTHBWidth = $originalW-(($originalW*$coeffH)/100);
        }
    }
    return array($profileTHBWidth, $profileTHBHeight);
}

print_r(getResized(600, 700));
?>