Re: foreach() faster than while()?

On 13 Mar 2001 18:10:45 -0800, Yasuo Ohgaki <yohgaki@hotmail.com> wrote: >It seems foreach() operates much faster than equivalent while() loop. >This is result is not what I expect. Foreach() operates on copy of array and I >thought it would work a little slower than while(). Copies aren't necessarily copies - Zend includes a feature where a new variable will point at the old one until something changes - if all you're doing is reading that data, that never happens and it never needs to copy the actual data. Your while loop does two variable assignments in each loop and I doubt the underlying engine is smart enough to play the same trick with the variables in a list() assignment. Even if it was, it'd still have the difference of doing it twice with whatever additional overhead list() imposes. Disclaimer: This is all speculation. I could quite easily be wrong. If you want a sure answer, take a look at the source.