The original author wanted to generate byte code that executes as efficiently as possible. Clearly scoped goal. :) Because PHP's compiler component, which he r

The original author wanted to generate byte code that executes as efficiently as possible. Clearly scoped goal. :) Because PHP's compiler component, which he refers to as "compiler", did not generate efficient byte code for the interpreter, he had to use GOTO to force the compiler to generate it. Whether the byte codes get cached or not might be irrelevant to his goals. We cannot be certain what proportion of time is wasted in network, compilation or serving the request. It could be one way or another. USUALLY this is a waste of time. The developer's time that is.