PHP計算運算符例子

試試下麵的例子就明白了算術運算符操作。複製並粘貼到test.php文件，下麵的PHP程序，並保存它在PHP服務器的文檔根目錄並使用瀏覽器瀏覽。

<html>
<head><title>Arithmetical Operators</title><head>
<body>
<?php
    $a = 42;
    $b = 20;
    
    $c = $a + $b;
    echo "Addtion Operation Result: $c <br/>";
    $c = $a - $b;
    echo "Substraction Operation Result: $c <br/>";
    $c = $a * $b;
    echo "Multiplication Operation Result: $c <br/>";
    $c = $a / $b;
    echo "Division Operation Result: $c <br/>";
    $c = $a % $b;
    echo "Modulus Operation Result: $c <br/>";
    $c = $a++; 
    echo "Increment Operation Result: $c <br/>";
    $c = $a--; 
    echo "Decrement Operation Result: $c <br/>";
?>
</body>
</html>

這將產生以下結果

Addtion Operation Result: 62
Substraction Operation Result: 22
Multiplication Operation Result: 840
Division Operation Result: 2.1
Modulus Operation Result: 2
Increment Operation Result: 42
Decrement Operation Result: 43