Things To Fix: Hiring Software Developers
sparklewise.com
sparklewise.com
The best way to get people is to network. Are you and your developers going to conferences and being active in developer communities?
Perhaps de-emphasizing "php" and emphasizing hardcore functional descriptions of the work you do might attract better people? In other words, is what you really want a "php guy" or do you want a capable developer who knows the core material. Can a competent front-end guy with demonstrated ability become quickly productive in a php shop even if he hasn't work in php? I think so.
However, the focus of my blog post was more to identify what things a startup could do to help software companies finding talent. Easing the workflow or adding some screening steps are examples of what a startup could do to solve this problem, which is a major one for tech companies and where a lot of money is spent.
I agree on de-emphasizing PHP in general. You want to know what framework that person is comfortable with and why it's their method of choice.
Look for people from C# or Java or Python background. They can write PHP if they have to.