Creating random passwords with PhP

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Here is a snippet for creating random passwords with PhP :

Code:

<?php
if (!function_exists('str_split')) {
       function str_split($str, $length = 1)
       {
           // Return false if parameter isn't string, length isn't numeric, or length is 0.
           if (!is_string($str)|| !is_numeric($length) || $length == 0) {
               return FALSE;
           }
           // Define array to be used to split.
           $strArr = array();   
           // Loop through all characters and stick them in the array.
           for ($i = 0; $i < strlen($str); $i += $length) {
               if (strlen(substr($str, $i)) < $length) {
                   $strArr[] = substr($str, $i);
               }
               else {
                   $strArr[] = substr($str, $i, $length);
               }
           }            
           // Return the array.
           return $strArr;
       }
  }
  
function getRandPass($len=5){
    $chrs = "1234567890qwertyuiopasdfghjklzxcvbnm";
    $ch = str_split($chrs);
    for($i = 0; $i < $len; $i++)
    {
        $pwd .= $ch[mt_rand(0, count($ch))];
    }
    return $pwd;
}
?>

The $len = 5 indicates how many characters the password will contain.

Enjoy

I think you don't need to use the split function!
this should be enough with splitting!
$pwd .= $ch[mt_rand(0, count($ch))];

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Hmmm. You are right

I think this should work with brackets { not [

Thanks for correcting me

You can also do this :

Code:

<?php
function getRandPass($len=5){
    $pwd = '';
    for($i = 0; $i < $len; $i++)
    {
        $pwd .= chr ( mt_rand( 35 , 125 ) );
    }
    return $pwd;
}
?>

I think that this is the faster way

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You are right Archer. That's far faster than mine.

That's why it is good to share your code. You can allways make your code better

It is faster but not customizable to choose the character sets for the generated password!

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