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Write a programmer using if else

<html>

<body>

<?php

$a=1;

$b=2;

if($a>$b)

echo $a;

else

echo $b;

</html>

Output:-

Write a programme using if else

<html>
<body bgcolor="yellow">
<?php
$a=99;
$b=99;
$c=100;
$t=$a+$b+$c;
$per=($t/300)*100;
if($a>90 && $b>90 && $c>90){
   echo "<center><table border='2' bgcolor='red'><tr><th>";
   echo "Maths marks=";
   echo "</th><th>";
   echo $a;
   echo "</th></tr><tr><th>";
   echo "Science marks=";
   echo "</th><th>";
   echo $b;
   echo "</th></tr><tr><th>";
   echo "S.S.T marks=";
   echo "</th><th>";
   echo $c;
   echo "</th></tr><tr><th>";
   echo "Total=";
   echo "</th><th>";
   echo $t;
   echo "</th></tr><tr><th>";
   echo "Percentage=";
       echo "</th><th>";
echo $per;
echo "</th></tr></table>";
echo "Superb!";
echo "</center>";
}
else if($a<50 && $b<50 && $c<50){
   echo "<center><table border='2' bgcolor='red'><tr><th>";
   echo "Maths marks=";
   echo "</th><th>";
   echo $a;
   echo "</th></tr><tr><th>";
   echo "Science marks=";
   echo "</th><th>";
   echo $b;
   echo "</th></tr><tr><th>";
   echo "S.S.T marks=";
   echo "</th><th>";
   echo $c;
   echo "</th></tr><tr><th>";
   echo "Total=";
   echo "</th><th>";
   echo $t;
   echo "</th></tr><tr><th>";
   echo "Percentage=";
       echo "</th><th>";
echo $per;
echo "</th></tr></table>";
echo "Need improvement";
echo "</center>";
}
?>
</body>
</html>

output:-