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PHP 8.3 highlight_file/highlight_string output changes #8313
Description
Feature Request
Provide a migration rector for highlight_file/highlight_string for PHP 8.3 (and for UP_TO_PHP_83 LevelSetList etc)
PHP 8.3 makes several changes to how the highlighter process white-spaces, and now wraps the output with a
<pre></pre>HTML tag. Further, it no longer converts new-line characters to HTML
tags, resulting in a multi-line highlighted HTML output.
Full details and diff examples at:
https://php.watch/versions/8.3/highlight_file-highlight_string-html-changes
This has already effected the Symfony project here (as an example, already fixed) symfony/symfony#51586
Activity
PhilETaylor commentedon Nov 16, 2023
Ignore me - Im being dumb today haha... The signature of the function is the same, its the output that is different haha
Im such a dumb idiot since I switched to Tea from Coffee....
github-actions commentedon Apr 5, 2026
This issue has been automatically locked because it has been closed for 150 days. Please open a new issue if you have a similar problem.