note 54585 added to function.rand

I needed to generate a random array of different(!) numbers, i.e. no number in the array should be duplicated. I used the nice functions from phpdeveloper AT o2 DOT pl but it didn't work as I thought. So I varied it a little bit and here you are: function RandomArray($min,$max,$num) { $ret = array(); // as long as the array contains $num numbers loop while (count($ret) <$num) { do { $a = rand($min,$max); // #echo $a."<br />"; } // check if $a is already in the array $ret // if so, make another random number while (in_array($a,$ret)); // add the new random number to the end of the array $ret[] = $a; } return($ret); } // generate an array of 3 numbers between 10 and 19 $ret = randomArray(10,19,3) echo $ret[0]."-".$ret[1]."-".$ret[2]; ---- Manual Page -- http://www.php.net/manual/en/function.rand.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+54585 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+54585&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+54585&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+54585&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+54585&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+54585&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+54585&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+54585&report=yes Search -- http://master.php.net/manage/user-notes.php