note 87750 deleted from function.rand by danbrown
| From: | danbrown@php.net | Date: | Fri, 19 Dec 2008 19:29:26 +0000 |
| Subject: | note 87750 deleted from function.rand by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-148367@lists.php.net to get a copy of this message | ||
Note Submitter: deathshadow60 at hotmail dot com
Reason: useless
----
Some of these random character string functions are just mind boggling the LACK of logic... String
index lookups? Complex 'break' logic? Even simple math sillyness.
$r = chr(rand(0,25)+65);
Yeah, that extra addition is SO neccessary, NOT.
$r=chr(rand(65,90));
better.
Let's see... This would not give an even distribution as it would favor the numbers (which
would make a full third of it), but would probably be faster than what we're seeing so far:
function randString($length) {
$result='';
for (t=0; t<$length; t++) {
switch (rand(0,2)) {
case 0:
$result.=chr(rand(97,122));
break;
case 1:
$result.=chr(rand(65,90));
break;
default:
$result.=chr(rand(48,57));
}
}
return $result;
}