Are there any good books (or other resources) on modern PHP?
I last used PHP back with PHP3 (and then went C++ => Java => Python => Python/JavaScript => Ruby => Python/R), but a bunch of code I want to read at work uses PHP (with Zend). I no longer remember most of what I learned about PHP3, though obviously the PHP syntax seems to be at least somewhat readable as a sort of amalgam of Perl and C++ syntax and idioms. What does, e.g., Facebook use to get engineers who don't know PHP (but might know C++ or Python) up and running?
I last used PHP back with PHP3 (and then went C++ => Java => Python => Python/JavaScript => Ruby => Python/R), but a bunch of code I want to read at work uses PHP (with Zend). I no longer remember most of what I learned about PHP3, though obviously the PHP syntax seems to be at least somewhat readable as a sort of amalgam of Perl and C++ syntax and idioms. What does, e.g., Facebook use to get engineers who don't know PHP (but might know C++ or Python) up and running?