This is pretty subjective really, much like the position of brackets, and other coding-styles. The main thing is not so much which style you choose, but that you do choose a style, and that you stick to it throughout the project.
For me personally, coming from a Python background, I use a line-length of 79 and a
$flavors = array ('chocolate', 'strawberry', 'vanilla', 'cookie dough',
'chocolate chip', 'mint chocolate chip', 'rocky road',
'peach', 'fudge brownie', 'coffee', 'mocha chip');
style.
But as I say, in my opinion, it's more important to have a style, rather than to worry about which one.
