[php-src] Issue #10725: `TypeError` when the array passed to `array_sum` contains array references

Issue: https://github.com/php/php-src/issues/10725 Author: tobyaherbert ### Description Hey there, I've encountered a problem with the array_sum function, which only seems to occur when the passed array contains at least one array reference value. Here's an example to demonstrate this: ```php <?php $value = array(10, array(20), 30); next($value[1]); echo array_sum($value); ?> ``` I'm expecting the output of this to be 40, but the following error is thrown instead: ``` PHP Warning: Uncaught TypeError: Unsupported operand types: int + array in php shell code:1 Stack trace: #0 php shell code(1): array_sum() #1 {main} thrown in php shell code on line 1 ``` I've had a look at the PHP source for the array_sum function, and it looks like array values are skipped, but it doesn't appear to check if the value is a reference to an array. I'm not familiar with the internals of PHP, so is someone more familiar with the array_sum function's implementation able to indicate whether this is intentional? In the event that this is not intentional, I've come up with a modified version of the array_sum function which retrieves the type of the underlying value when a reference value is detected. Here's a link to that commit in my fork: https://github.com/php/php-src/commit/f88d67e8b9865c736c931d48b2d5153e8b6d3be3 I don't know if that patch follows the appropriate code syntax or guidelines, as this is the first time I've ever looked at PHP's source. Thanks in advance for taking a look ### PHP Version 8.2.3 ### Operating System Ubuntu 22.04