如何在串联中显示来自函数调用的字符串？

Question

I need to join/concatenate strings from a return of a function call, and from a variable without using the traditional concatenation ..

In this scenario, it should be displaying a url string.

Below is my actual code.

CODE:

$test = "{ config('app.url') }/{ $username }";
die(print_r($test));

Current Result:

{ config('app.url') }/testuser

Expected Result:

http://localhost:8000/testuser

Answer 1

You may read more about complex (curly) syntax in a quoted string, however you may achieve what you want with that code:

$test = "{${config('app.url')}}/{$username}";
die(print_r($test));

But I personally prefer:

$appUrl = config('app.url');
$test = "{$appUrl}/{$username}";
die(print_r($test));

Does that work for you?