title: PHP: $i = $i++ crashed the server
body: <p>This happened to me a few years ago before I knew about SO, but I'm still curious.  When I was still learning the basics of PHP, I accidentally typed <code>$i = $i++;</code>  When I tested the webpage in the browser, The server crashed and it took a long time to get it back up.  I've typed in some pretty stupid things before and created a bunch of infinite loops, but for some reason, that was the worst.  Does anyone know why this line was so 'poisonous'</p>