php - 在 PHP 中连接两个值

Question

有什么方法可以连接值

$mark = $_SESSION["mark"];  //consider this 2

$p1 = 10;
$p2 = 20;
$p3 = 30;

$price = $p.$mark;   //i want result 20  [$p2]

谢谢

标签： php

Answer 1

对于这种情况，一种更易于维护和可用的方法是对“p”值使用数组：

$mark = $_SESSION["mark"];  //consider this 2
$pVals = array(1 => 10, 2 => 20, 3 => 30);
$price = $pVals[$mark];