```shell
dd if=/dev/zero of=filesize.test bs=67108864 count=80
php -r "var_dump(filesize('filesize.test'));"
uname -m
```

```
int(5368709120)
x86_64
```

```
Warning: filesize(): stat failed for filesize.test in Command line code on line 1
bool(false)
i686
```