PHP 算术运算符示例

下面的示例显示了算术运算符的用法 - 加法 (+)、减法 (-)、乘法 (*)、除法 (/)、指数 (**) 和模(%) 运算符。

<?php
$a = 11;
$b = 2;

echo "a = $a, b = $b\n\n";

//a加b
$result_add = $a + $b;
echo "a + b = $result_add\n";

//a减b
$result_sub = $a - $b;
echo "a - b = $result_sub\n";

//a乘b
$result_mul = $a * $b;
echo "a * b = $result_mul\n";

//a除以b
$result_div = $a / $b;
echo "a / b = $result_div\n";

//a 的 b 次方
$result_pow = $a ** $b;
echo "a ** b = $result_pow\n";

//返回整数除法的余数
$result_modulo = $a % $b;
echo "a % b = $result_modulo\n";  
?> 

上述代码的输出将是:

a = 11, b = 2

a + b = 13
a - b = 9
a * b = 22
a / b = 5.5
a ** b = 121
a % b = 1