Php > Miscellaneous

Draw Bargraphs using GD

Draw Bargraphs using GD

<?php 

if($t1){ 

   header("Content-type: image/jpeg"); 

   $imPoint=ImageCreate(400,425); 
   $bgColor=ImageColorAllocate($imPoint,255,255,255); 
   $stColor=ImageColorAllocate($imPoint,0,0,0); 
   $color[0]=ImageColorAllocate($imPoint,255,0,0); 
   $color[1]=ImageColorAllocate($imPoint,0,255,0); 
   $color[2]=ImageColorAllocate($imPoint,0,0,255); 
   $color[3]=ImageColorAllocate($imPoint,255,0,255); 
   $color[4]=ImageColorAllocate($imPoint,0,255,255); 
   $color[5]=ImageColorAllocate($imPoint,255,255,0); 
   for($i=0;$i<11;$i++){ 
       ImageString($imPoint,2,5,220-($i*20),$i*10,$stColor); 
   } 
   for($i=0;$i<6;$i++){ 
         $total=2*$stMarks[$i]; 
         ImageFilledRectangle($imPoint,50+($i*50),225-$total,75+($i*50),225,$color[$i]); 
         ImageString($imPoint,3,55+($i*50),225-$total-15,$stMarks[$i],$stColor); 
         ImageFilledREctangle($imPoint,110,260+($i*25),125,275+($i*25),$color[$i]); 
         ImageString($imPoint,3,150,260+($i*25),$stName[$i],$stColor); 
   } 
   ImageLine($imPoint,25,225,350,225,$stColor); 
   ImageLine($imPoint,25,10,25,225,$stColor); 
   ImageRectangle($imPoint,100,250,250,410,$stColor); 
   ImageJPEG($imPoint); 
   ImageDestroy($imPoint); 
} 
else{ 
         echo "This is just a sample script as values are not validated. Make sure you enter integer values on the marks text box<br>"; 
         echo "<form name=\"a\" action=\"gengraphs.php\" method=\"post\"><input type=\"hidden\" name=\"t1\" value=\"1\">"; 
         for($i=0;$i<6;$i++) 
         { 
                 $textVal=$i+1; 
                 echo "Student Name : <input type=\"text\" name=\"stName[$i]\" value=\"Name$textVal\" maxlength=\"10\"> Marks : <input type=\"text\" name=\"stMarks[$i]\" value=\"0\" maxlength=\"3\"><br>"; 
         } 
         echo "<input type=\"submit\" value=\"Draw Graph\"></form>"; 
} 
?>