title: How do I install PHP 5.4.9 with Homebrew on my Mac?
body: <p>I need to upgrade the PHP on my Mac from 5.3.x to 5.4.9, which is the version that's on our server.  How do I do that with Homebrew?  I tried <code>brew install php54</code> and got an error that it didn't know that formula.  Where can I get a list of formulas so I know what my options are?  I tried <code>brew list</code> but that didn't work either.</p>