$imagebaseurl = 'support/content_editor/uploads/' . $name;

或

$imagebaseurl = "support/content_editor/uploads/{$name}";

请注意，如果使用双引号，也可以将上面的代码写为:

Note that if you use double quotes, you can also write the above as:

$imagebaseurl = "support/content_editor/uploads/$name";

尽管要养成在双引号中使用{$...}而不是仅在$...中使用的习惯，但是在某些情况下，您需要在字符串中插入变量，而对于PHP来说这并不明显，这是变量的一部分，哪一部分是字符串.

It's good though to get in the habit of using {$...} in double quotes instead of only $..., for times where you need to insert the variable in a string where it's not obvious to PHP which part is the variable and which part is the string.

如果要获得***性能，请使用带单引号的字符串连接.

If you want the best performance, use string concatenation with single quotes.