Re: Arrays as pointers?

v0idnull, [surely you don't think of yourself as a nonentity twice over?] > A friend of mine showed me this code recently. > > function firstLogin_string() { > mt_srand(make_seed()); > $pool = "AaBbCcDdEeFfGgHhIiJjKkLlM"; > $length = 26; > for($i=0; $i < $length; $i++) { > $key .= $pool[mt_rand(0,strlen($pool)-1)]; > } > return $key; > } > > look at the for loop. $pool is not an array but is being treated as such and > the key happens to be the position in $pool and it'll take that letter and > save it to $key. I've never seen this done before. What is this method > called and what other neat tricks can you do in respect to this? I'm not sure if it has a special name. A string is an array of characters. I think you will find that you can use curly brackets/braces to identify a character/byte position within a string too - check it out in the manual. The strings/arrays ($pool and $key) are not "Arrays of pointers" - what did you mean? =dn