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05-15-2008, 03:39 AM #1mypointofviewGuest
Quick question about "mt_rand(Start,Total);"
I want to echo a random URL on a page. My question is: do I use "0" as Start (not "1") and as Total I'd use the total amount of URLs but minus 1 ?
If yes, then the following array of 9 URLs should work, writing "$random = mt_rand(0,8);" ?
Here's my full code:
$url = array(
'http://www.link-9.com' // last item without comma!
$random = mt_rand(0,8); // second digit must be one less than the total amount of all links in list above.
$link = $url[$random];
Last edited by mypointofview; 05-15-2008 at 03:48 AM.
05-15-2008, 04:28 AM #2
- Join Date
- Sep 2002
- Saskatoon, Saskatchewan
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I'd do it your way mate.
Some languages have different array handling (I'm thinking VB is 1 based, but someone would need to confirm). PHP is 0 based arrays, as in they start at zero. mt_rand is an inclusive function, so it will randomly generate a number between the first (0), and last (8), including the first and the last as options. The other option is to do the 1 and 9, but then you need to subtract one from result value. This takes one cpu cycle that you can avoid by just doing the 0, 8. Go optimization
Been gone for a few months, and haven't programmed in that long of a time. Meh, I'll wing it ;)PHP Code:
header('HTTP/1.1 420 Enhance Your Calm');