Question: I'm testing PHP7, and have a weird issue after a recent update. SimpleXML should be enabled by default, and my `phpinfo` page shows that it is available:

[![enter image description here](https://i.stack.imgur.com/F5qwX.png)](https://i.stack.imgur.com/F5qwX.png)

However, the functions are not available:

```
<?php

if (function_exists('simplexml_load_file')) {
    echo "simpleXML functions are available.<br />\n";
} else {
    echo "simpleXML functions are not available.<br />\n";
}

// result-- NOT available

```

And the module isn't listed as loaded:

```
~ $ php -m
[PHP Modules]
calendar
Core
ctype
curl
...
Reflection
session
shmop
sockets
SPL
standard
sysvmsg
sysvsem
sysvshm
tokenizer
Zend OPcache
zlib

```

Anyone know if there's a workaround for this?

Version info:

```
~ $ php -v
PHP 7.0.3-8+deb.sury.org~trusty+2 (cli) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies

```

Answer: 
I had the same problem and I'm using Ubuntu 15.10. 

In my case, to solve this issue, I installed the package php7.0-xml using the Synaptic package manager, which include SimpleXml. So, after restart my Apache server, my problem was solved. This package came in the Debian version and you can find it here: <https://packages.debian.org/sid/php7.0-xml>.
I'm using Bash on Windows (Ubuntu 16.04) and I just installed with php7.0-xml and all is working now for the Symfony 3.2.7 PHP requirements. 

```
sudo apt-get install php7.0-xml

```