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I'm currently using JetBrains PhpStorm EAP build for PHP programming and I would like to switch to VS Code.

I'm currently working on an open source project that heavily uses printing of JavaScript and HTML code inside strings. PhpStorm has a very useful feature, it has full syntax highlighting and intellisense/code completion for HTML and JavaScript code inside strings in PHP. I have the Intelliphense extension installed on VS Code, but it doesn't seem to support this.

This is how JS inside strings looks on VS Code:

This is how it looks on VS Code

This is how the same code looks in PhpStorm:

This is how it looks on PhpStorm

Does anyone know if this is possible to achieve on VS Code? Or should I stick with PhpStorm?

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  • You might find the answer to what your looking for in this SO question. Commented Nov 13, 2021 at 12:06
  • @slashroot Not exactly what I'm looking for, that SO question is talking about word autocomplete on Strings. I want full syntax highlighting and intellisense/autocomplete fo JavaScript and HTML code inside Strings, like what PHPStorm does. Commented Nov 13, 2021 at 15:49
  • In JetBrains IDEs it's called Language Injection: can be automatic (as in your example: it detects the HTML tag and injects HTML inside; or via some markers that each language can support: e.g. for PHP it can be the label for HEREDOC/NOWDOC .. or via #[Language] attribute for specific parameter etc; for Twig it's a custom block name. etc) or manual (a comment just before the string e.g. $a = /* @lang SQL */ 'some text that is treated as SQL'; Commented Nov 13, 2021 at 16:08
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    Try googling for vscode language injection and check the links -- they should give some links/ideas for such plugins or corresponding VSCode functionality. The first/start link: github.com/microsoft/vscode/issues/1751 and code.visualstudio.com/api/language-extensions/… Commented Nov 13, 2021 at 16:10
  • @LazyOne Thanks for the information and the links. I could not find any available extension that does HTML and JS Language Injection automatically in string literals on PHP files, but it seems feasible to do it. I currently don't have enough free time, so I'll continue using PhpStorm, but in the future I'll try and work on it. Commented Nov 16, 2021 at 21:06

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This may help for some situations: Instead of ' or " you can use Heredoc syntax to get HTML highlighted inside PHP like this:

echo <<<HTML
<!-- Insert your HTML code here -->
<h1>Hello World</h1>
<h2>Syntax highlighting using heredoc PHP syntax</h2>
HTML;

And it looks like this on vscode: vscode syntax highlight using heredoc php syntax

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