Problem gelöst.

[KraKi]

Ich konnte in der Zwischenzeit das Problem mit imagefilledpolygon lösen können. Für den Fall, dass jemand mal das selbe Problem hat und diesen Beitrag im Archiv findet hier nun meine Lösung:

  
 function polycreate ($Zeichen , $cx , $cy) {  
  unset ($Polygon);  
  if ($Zeichen == 0) { //Karo  
   $Polygon[] = $cx;  
   $Polygon[] = $cy-6;  
   $Polygon[] = $cx+4;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy+6;  
   $Polygon[] = $cx-4;  
   $Polygon[] = $cy;  
  }  
  elseif ($Zeichen == 1) { //Herz  
   $Polygon[] = $cx;  
   $Polygon[] = $cy-2;  
   $Polygon[] = $cx+2;  
   $Polygon[] = $cy-5;  
   $Polygon[] = $cx+3;  
   $Polygon[] = $cy-5;  
   $Polygon[] = $cx+5;  
   $Polygon[] = $cy-1;  
   $Polygon[] = $cx+5;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy+5;  
   $Polygon[] = $cx-5;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx-5;  
   $Polygon[] = $cy-1;  
   $Polygon[] = $cx-3;  
   $Polygon[] = $cy-5;  
   $Polygon[] = $cx-2;  
   $Polygon[] = $cy-5;  
  }  
  elseif ($Zeichen == 2) { //Pik  
   $Polygon[] = $cx;  
   $Polygon[] = $cy-5;  
   $Polygon[] = $cx+5;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx+2;  
   $Polygon[] = $cy+3;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx+1;  
   $Polygon[] = $cy+5;  
   $Polygon[] = $cx+2;  
   $Polygon[] = $cy+5;  
   $Polygon[] = $cx-2;  
   $Polygon[] = $cy+5;  
   $Polygon[] = $cx-1;  
   $Polygon[] = $cy+5;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx-2;  
   $Polygon[] = $cy+3;  
   $Polygon[] = $cx-5;  
   $Polygon[] = $cy;  
  }  
  elseif ($Zeichen == 3) { //Kreuz  
   $Polygon[] = $cx;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx+2;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx+4;  
   $Polygon[] = $cy-2;  
   $Polygon[] = $cx+6;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx+4;  
   $Polygon[] = $cy+2;  
   $Polygon[] = $cx+2;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy+3;  
   $Polygon[] = $cx+2;  
   $Polygon[] = $cy+5;  
   $Polygon[] = $cx-2;  
   $Polygon[] = $cy+5;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy+3;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx-2;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx-4;  
   $Polygon[] = $cy+2;  
   $Polygon[] = $cx-6;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx-4;  
   $Polygon[] = $cy-2;  
   $Polygon[] = $cx+2;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy-2;  
   $Polygon[] = $cx-2;  
   $Polygon[] = $cy-4;  
   $Polygon[] = $cx;  
   $Polygon[] = $cy-6;  
   $Polygon[] = $cx+2;  
   $Polygon[] = $cy-4;  
  }  
  return($Polygon);  
 }  

Aufgerufen wird das ganze z.B. so:

  
$Poly = polycreate( rand(0,3) , 50 , 50 );  
$Polyzahl = round(count($Poly)/2);  
imagefilledpolygon ( $im , $Poly , $Polyzahl , 0 );  

Oder im Refferenz-Stil von php.net:

array polycreate ( int zeichen, int cx, int cy )
Diese Funktion kreiert einen array, der ein imagepoly oder imagefilledpoly-taugliches Polygon enthält. Dabei werden die typischen Spielkartensymbole erzeugt, sie sind 10 bis 12 Pixel groß. Mit zeichen bestimmten Sie welches Zeichen erzeugt werden soll (0 = Karo; 1 = Herz; 2 = Pik und 3 = Kreuz). Mit cx und cy bestimmen Sie den Mittelpunkt der Grafik.