<?php?

$english = 110; //英語(yǔ)成績(jī)

$math= 118; //數(shù)學(xué)成績(jī)

$biological = 80; //生物成績(jī)

$physical = 90; //物理成績(jī)

$sum = $english+$math+$biological+$physical;

$avg = $sum/4;

$X = $math - $english;

$x2 = $english * $english;

echo "總分:".$sum."<br />";

echo "平均分:".$avg."<br />";

echo "數(shù)學(xué)比英語(yǔ)高的分?jǐn)?shù):".$x."<br />";

echo "英語(yǔ)成績(jī)的平方:".$x2."<br />";