The following code snippet is valid PHP, but XHPAST cannot parse it. Specifically, the following error is raised: `XHPAST Parse Error: syntax error, unexpected T_STRING, expecting ',' or ';' on line 8`.
```lang=php
<?php
$user = array(
'id' => 123,
'name' => 'Joe Bloggs',
);
echo "'{$user["name"]}'";
```
The issue here is that double quotes are nested within an expression that is nested within double quotes. The following modification to the source will parse correctly:
```lang=diff
-echo "'{$user["name"]}'";
+echo "'{$user['name']}";
```