[php-src] Issue #20601: integer overflow in network.c

Issue: https://github.com/php/php-src/issues/20601
Author: chongwick

### Description

The following code:

```php
<?php
function section($v_14574,$v_14575,$v_14576,)
{
$v_14574 = $v_14574;
$v_14575 = $v_14575;
$v_14576 = $v_14576;
$v_14577 = "\n------- $v_14574 -----------\n\n";
$v_14579 = 0;
$v_14580 = 3;
$v_14581 = 6;
$v_14582 = 9;
$v_14583 = 11;
$v_14584 = 12;
$v_14585 = 1;
$v_14586 = -($v_14585);
$v_14587 = 3;
$v_14588 = -($v_14587);
$v_14589 = 6;
$v_14590 = -($v_14589);
$v_14591 = 20;
$v_14592 = -($v_14591);
$v_14578 = array(0 => $v_14579,1 => $v_14580,2 => $v_14581,3 => $v_14582,4 => $v_14583,5 => $v_14584,6 => $v_14586,7 => $v_14588,8 => $v_14590,9 => $v_14592,);
foreach ($v_14578 as $offset){
$v_14594 = $offset;
$v_14595 = "> Offset: $v_14594\n";
try{
$v_14599 = func($v_14575,$v_14576,$v_14594,);
}
catch (ValueError $e){
$v_14596 = $e->getMessage();
$v_14597 = PHP_EOL;
$v_14598 = $v_14596 . $v_14597;
}
}
$v_14593 = $offset;
}
try{
$v_14999 = '127.0.0.1';
$v_2741 = PHP_INT_MAX;
$v_2742 = 3;
$v_2743 = intdiv($v_2741,$v_2742,);
$v_2744 = var_dump($v_2743,);
$v_15003 = ftp_connect($v_14999,$v_2744,$v_2741,);
}
catch (ValueError $exception){
$v_14996 = $exception->getMessage();
$v_15004 = '127.0.0.1';
$v_14998 = $v_14998 . $v_15004;
}
```

Resulted in this output:
```
/home/w023dtc/nightly_php/php-src/main/network.c:320:21: runtime error: signed integer overflow: 1764255369 + 9223372036854775807 cannot be represented in type 'long'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/w023dtc/nightly_php/php-src/main/network.c:320:21
```




### PHP Version

```plain
nightly
```

### Operating System

_No response_