Path autocompletion for attribute in custom tags

you can inject File Reference language in attribute value: put cursor between quotes in attribute value, hit Alt+Enter, choose to inject language or references, choose File reference from the list

the corresponding language injection;

is there any tag like /* @lang File Reference */ to use instead choose from alt+enter ? especially in PhpStorm (PHP language)

Yes

should do the thing

Could you please paste working example for PHP ?

This not works for me (in latest PhpStorm IDE):

// language=file-reference
$file1 = './'; // no completion

$file2 = /* @lang file-reference */ './'; // no completion

works only with alt + enter

maybe it is possible to inject file reference via "PHP attributes" ?

It works as expected for me in HTML and javascript:

But injecting languages in PHP might be tricky. Can't advise on this, sorry, not an expert here. I'd suggest asking a question at https://intellij-support.jetbrains.com/hc/en-us/community/topics/200367219-PhpStorm

Looks like Alt+Enter is the only solution for PHP now

Here are some related feature requests:

• Using #[Language] PHP attribute: https://youtrack.jetbrains.com/issue/WI-56996
• Or in-place via PHPDoc-like comment: https://youtrack.jetbrains.com/issue/WI-20028

Watch those tickets (star/vote/comment) to get notified on any progress