引用php中的常量:“这是MY_CONSTANT"； [英] quoting constants in php: "this is a MY_CONSTANT"

问题描述

我想在PHP中使用常量，但我也想像变量一样将其放在双引号中.这有可能吗?

I want to use a constant in PHP, but I also want to put it inside double quotes like a variable. Is this at all possible?

define("TESTER", "World!");
echo "Hello, TESTER";

显然会输出"Hello，TESTER"，但是我真正想要的是这样的东西:

obviously outputs "Hello, TESTER", but what I really want is something like:

$tester = "World!";
echo "Hello, $tester";

输出你好，世界！".

推荐答案

对不起，这不是PHP中常量的工作方式.您可以将变量放在双引号和heredocs中，但不能放在常量中.

Sorry, that's not the way constants in PHP work. You can put variables in double quotes and heredocs but not constants.

这篇关于引用php中的常量:“这是MY_CONSTANT"；的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！