function().function() VS function()function()
<p>I was writing a foreach Loop in PHP5.
Here is the script:</p>

<pre><code>foreach(range('A','Z') as $char) // line 1
{ // line 2
echo strtoupper($char)strtolower($char); // line 3
} // line 4
</code></pre>

<p>And I got this error message
Parse error: parse error, unexpected T_STRING in testing.php on line 3</p>

<p>I spent almost an hour to figure out I should add a dot between two functions like this:</p>

<pre><code>echo strtoupper($char).strtolower($char);
</code></pre>

<p>So I can't tell the difference between these two lines of codes:</p>

<pre><code>echo strtoupper($char).strtolower($char);
echo strtoupper($char)strtolower($char);
</code></pre>
