Re: in_array() 4.0.0 -> 4.0.2

> Andrei Zmievski wrote: > > > > > The purpose of in_array() is to say if an item is in the array, > > > with a rather nice side effect of re-positioning the array pointer > > > to that element. > > > > > > How are we to find the position of the element? > > > > > > I don't want to have to do an expensive for loop every time I > > > want to get an index. > > > > > > Short of coding up a my_in_array() what are the alternatives? > > > > Hmm, I didn't realize people relied on that behavior. It's possible to > > change it back to the old one, but still implement a check that if the > > element is not found the pointer is reset to the beginning of the array, > > but I guess I'd like to hear more opinions about this before doing any > > changes. > > OK, then, as long as you are fising for opinions. I didn't know the > feature existed and so implemented my own "my_in_array". Wish I had > known it was built-in: faster and easier. Makes a lot of sense b/c a > good percentage of the time that you search for a value you want to know > what the key is; I have done some profiling on some of my code and found that in_array is an expensive operation. Heaven only knows how heavy my_in_array() must be! > on the other hand I have not yet been in a situation > where I was worried about moving the pointer by in_array. I must say that I'm with Andrei Zmievski on this one. I have not come across a situration which I have used next(),current(),prev() or any other function that moves the internal array pointer (except in_array() ;) > Of course, using the configurable approach, there could be an optional > third argument for "don't move the pointer". This will be a forth option! Although not published in the documentation, there has been added a boolean "strict" parameter to make the in_array() comparison more strict. Here is the reference: In php-4.0.2/ext/standard/array.c line 1036 /* {{{ proto bool in_array(mixed needle, array haystack [, bool strict]) Checks if the given value exists in the array */ PHP_FUNCTION(in_array) { Cheers, David.