RE: Re: Random

["Wagner, Aaron" <aaron.wagner@xxxxxxxxxxxxxxxxx>]

> -----Original Message-----
> From: Jason Barnett [mailto:jason.barnett@xxxxxxxxxxxxx]
> Sent: January 24, 2005 09:41
> To: php-windows@xxxxxxxxxxxxx
> Subject:  Re: Random
> 
> 
> SargeTron wrote:
> > "How can I create a random string"
> > 
> > rand() only returns an int (number), but I would like something like
> > dd75$6*, you know, containing any character. I would like 
> it only to do a
> > certain string ONCE, so there are no duplicates (in a for 
> loop). Hopefully I
> > won't need to do a huge array. Any suggestions?
> 
> I would suggest uniqid()
> http://www.php.net/manual/en/function.uniqid.php
> 
> It creates a random string that is 32 characters long, hopefully this 
> will fit your needs?
> 
> -- 
> Teach a man to fish...
> 
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> nd+search+plugins
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> 

Here is a function I found a while back that I use for Random Password creation
##############################################
function str_makerand () {
	$minlength = 5;
	$maxlength = 10;
	$useupper = 1;
	$usespecial = 0;
	$usenumbers = 1;
	/*
	Author: Peter Mugane Kionga-Kamau
	http://www.pmkmedia.com
	Description: string str_makerand(int $minlength, int $maxlength, bool $useupper, bool $usespecial, bool $usenumbers)
	returns a randomly generated string of length between $minlength and $maxlength inclusively.
	Notes:
	- If $useupper is true uppercase characters will be used; if false they will be excluded.
	- If $usespecial is true special characters will be used; if false they will be excluded.
	- If $usenumbers is true numerical characters will be used; if false they will be excluded.
	- If $minlength is equal to $maxlength a string of length $maxlength will be returned.
	- Not all special characters are included since they could cause parse errors with queries.

	***********************************************************
	*         Change Log  11.19.03                            *
	***********************************************************
	aw 11.19.03 Removed zero and alpha O from selection choices

	*/

	$charset = "abcdefghijklmnopqrstuvwxyz";
	if ($useupper)   $charset .= "ABCDEFGHIJKLMNPQRSTUVWXYZ";
	if ($usenumbers) $charset .= "123456789";
	if ($usespecial) $charset .= "~@#$%^*()_+-={}|][";   // Note: using all special characters this reads: "~!@#$%^&*()_+`-={}|\\]?[\":;'><,./";
	if ($minlength > $maxlength) $length = mt_rand ($maxlength, $minlength);
	else                         $length = mt_rand ($minlength, $maxlength);
	for ($i=0; $i<$length; $i++) $key .= $charset[(mt_rand(0,(strlen($charset)-1)))];
	return $key;
}

###########################################

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