Foreword
Because of PHP's humble beginning as a hackers' project – an attempt to develop an easy and enjoyable way to develop web sites – nobody expected it to become nearly as popular as it is today.
Over the years we've used many different metrics to measure PHP's popularity, looking at the number of web sites that have PHP deployed on them, the number of PHP books on sale at Amazon.com, the amount of prominent companies using PHP, the number of PHP-based projects, the size of the communities that create them, and so on.
And then, there was one other, much less “scientific” metric.
Back in 2008, when I was on my honeymoon with my wife, Anya, we stayed at a small hotel called Noster Bayres in Buenos Aires. We arrived after a long flight, visiting ...
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