Quick, what does the following PHP [1] code print out?
>
```
<?php
for ($i = 'a' ; $i <= 'z' ; $i++)
echo "$i\n";
```
Non-PHP programmers might say “the letters from ‘a’ to ‘z’ of course!” But sadly, no. It does not just print the letters from ‘a’ to ‘z’. Nope. It prints way more than you expect [2] (link via Hacker News [3]).
I realize that picking [4] on PHP is like [5] shooting dead fish in a [6] barrel with a double [7] barrel shotgun but I find it [8] never gets too old [9].
[2] http://stackoverflow.com/questions/4098345