Learn again to use PHP data structures appropriately, leaning closer on the way to employ arrays, the SPL and other structures from PHP extensions as well. We all have certainly learned data structures at school: arrays, lists, sets, stacks, queues (LIFO/FIFO), heaps, associative arrays, trees, … and what do we mostly use in PHP? The “array”! In most cases, we do everything and anything with it but we stumble upon it when profiling code.
Video Producer: http://www.phpconference.co.uk/