[php-src] Issue #13229: Strange string concatenation issue after upgrading to PHP 8.3

Issue: https://github.com/php/php-src/issues/13229 Author: janforth ### Description In PHP 8.2 this line worked perfectly well: $togetherWithName = "gemeinsam mit " . (($receiver[0] === ($article?->getCoAuthor() ?? "none") || $receiver[0] === ($article?->getCoAuthor()?->getEmail() ?? "none" ) || $coautor) || $emailContext->isForCoAuthorOnly()) ? ($article?->getAuthor()?->getFullName() ?? "N.N.") : ($article?->getCoAuthor()?->getFullName() ?? "N.N."); After upgrading to PHP 8.3 the string concatenation did not work anymore. The first part of string "gemeinsam mit " (engl.: 'together with') was always left out for whatever reason. The string $togetherWithName always only contained the name of the respective author from the right party of the string concatenation. This could fix the issue: ``` $togetherWithName = (($receiver[0] === ($article?->getCoAuthor() ?? "none") || $receiver[0] === ($article?->getCoAuthor()?->getEmail() ?? "none" ) || $coautor) || $emailContext->isForCoAuthorOnly()) ? ($article?->getAuthor()?->getFullName() ?? "N.N.") : ($article?->getCoAuthor()?->getFullName() ?? "N.N."); $togetherWithName = "gemeinsam mit " . $togetherWithName; ``` But I think the one-liner should work. Thanks! ### PHP Version PHP 8.3 ### Operating System Debian 12