It doesn't in fact imply that PHP is slow. What it says about PHP (besides "php seems to fail in most categories" which doesn't imply any single specific failur

It doesn't in fact imply that PHP is slow. What it says about PHP (besides "php seems to fail in most categories" which doesn't imply any single specific failure because most != all) is this: "But php has both an ugly syntax, horrendous stdlib, and fame of security issues." You will notice that none of those specific complaints is about speed.