Basic form to enter name & marks of six students. Submitting will draw a bargraph. Save the PHP file as "gengraphs.php"

By : nazly

<?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>";
}
?>

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