Hi, 
The attached patch fixes the indentation of PHP's 
"alternative syntax for control structure".
https://www.php.net/manual/en/control-structures.alternative-syntax.php

Thanks.
Vincenzo

GNU Emacs 30.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.42, cairo 
version 1.18.0) of 2024-06-21