Random key generator
Generates a random key, a-Z 0-9 with no max length
<?php
function keygen($length=10)
{
$key = '';
list($usec, $sec) = explode(' ', microtime());
mt_srand((float) $sec + ((float) $usec * 100000));
$inputs = array_merge(range('z','a'),range(0,9),range('A','Z'));
for($i=0; $i<$length; $i++)
{
$key .= $inputs{mt_rand(0,61)};
}
return $key;
}
// echo keygen(40); // JVP8xGk4hsX2cZd0L3NQwYbI0mf4exPiSoAhVYnz , your results will vary
?>
Usage
Use as demonstrated in the comment. This can be good to append to a url and store in a database, and check for in a site registration during email validation (i.e. http://site.com/register.php?connfirmationcode=2QwYbI0mf4exPi
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Comments
guest
Posted on 31.07.2012 18:50
Tahnks !!
guest
Posted on 10.12.2011 08:17
hi, guest your code is awesome than the original one.its user friendly and we can change our key characters easily by editing $options. i prefer your code than the original one posted.
guest
Posted on 26.10.2011 03:25
Nice function guys. I will be using it to write a function for generating card pins for web login. Pins generated are stored on a database. When a pin is generated it is matched with the ones on the database if it exits, it is discarded if not exit, it is added to the database.
What do you think?
guest
Posted on 28.03.2011 12:23
What about uniqueness?
guest
Posted on 19.10.2010 20:28
fuck
guest
Posted on 09.08.2010 12:57
nice, i use something similar
<?php
function generatekey($length)
{
$options = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$code = "";
for($i = 0; $i < $length; $i++)
{
$key = rand(0, strlen($options) - 1);
$code .= $options[$key];
}
return $code;
}
// echo generatekey(10); // Ko9B69utve, returned result is random. not only is this good for ac validatin but has several other applicvations, eg captch ect its uses are limitless.
?>
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