Description:
------------
There is a problem in concatenation.
When I write : 
<?php
    echo '<pre>' . var_dump($var) . '</pre>';
?>

PHP show the same result as :
<?php
    echo var_dump($var) . '<pre></pre>';
?>

There is a solution (show below), but it is not practical
<?php
    echo '<pre>';
    echo var_dump($var) . '</pre>';
?>


Test script:
---------------
<?php
    echo '<pre>' . var_dump($var) . '</pre>';
?>


Expected result:
----------------
<pre>The result of the function var_dump()</pre>

Actual result:
--------------
The result of the function var_dump()<pre></pre>