将PHP变量与字符串文字混合 [英] Mixing a PHP variable with a string literal
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问题描述
说我有一个变量$test
,它的定义为:$test = 'cheese'
Say I have a variable $test
and it's defined as: $test = 'cheese'
我想输出cheesey
,我可以这样:
I want to output cheesey
, which I can do like this:
echo $test . 'y'
但是我宁愿将代码简化为类似这样的代码(这是行不通的):
But I would prefer to simplify the code to something more like this (which wouldn't work):
echo "$testy"
是否有办法将y
视为与变量分开?
Is there a way to have the y
be treated as though it were separate from the variable?
推荐答案
echo "{$test}y";
直接在字符串中插值变量时,可以使用花括号消除歧义.
You can use braces to remove ambiguity when interpolating variables directly in strings.
此外,这不适用于单引号.所以:
Also, this doesn't work with single quotes. So:
echo '{$test}y';
将输出
{$test}y
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