I would like to ask, where is the error in my php code? ? ?

Question

<?php

$score=rand(0,100);if($score>90){ echo "Congratulations! Your score is excellent";}else if($score>=60) ;{ echo "Not bad, your score is good";}else{ echo "Sorry! You failed";}

?>

Answer 1

Isn't your writing rigorous enough? If a number is 91, does it print out as excellent or passing?

Answer 2

else if ($score>=60);There is a problem with; here.

Answer 3

$score=rand(0,100);
if($score>90){
    echo"恭喜！您的成绩为优秀";
}else if($score>=60);{
    echo"不错哟,您的成绩为良好";
}else{
    echo "很遗憾！您不及格";
}