<?php   /*   Class MAKEpasswd:   Make password from selected characters in a string.   required arguments:   length of a password and characters to use in a password.     1 = a - z   2 = A - Z   3 = a - z and A - Z   4 = a - z, A - Z and 0 - 9   5 = a - z, A - Z, 0 - 9 and chars !#$%&()     usage:   Make 10 passwords that is 8 characters long and   includes characters a - z, A - Z, 0 - 9 and !#$%&()     $numTimes = 0;   $example = new MAKEpasswd(8,5);   while($numTimes < 10)   {          print($example->makePassword() . "<br>\n");          $numTimes++;   }   */   class MAKEpasswd   {          var $intLength;          var $pool;            function MAKEpasswd($iLength, $iChars)          {                  $this->intLength = $iLength;                  $this->pool = $this->getPool($iChars);          }          function getPool($iChars)          {                  switch($iChars)                  {                          case 1: /* a - z */                                  for($i = 0x61; $i <= 0x7A; $i++)                                  {                                          $str .= chr($i);                                  }                                  return $str;                                  break;                          case 2: /* A - Z */                                  for($i = 0x41; $i <= 0x5A; $i++)                                  {                                          $str .= chr($i);                                  }                                  return $str;                                  break;                          case 3: /* a - z and A - Z */                                  $str = $this->getPool(1);                                  $str .= $this->getPool(2);                                  return $str;                                  break;                          case 4: /* 0 - 9, A - Z and a - z */                              $str = $this->getPool(3); // get chars a - z and A - Z first                                  for($i = 0x30; $i <= 0x39; $i++)                                  {                                          $str .= chr($i); // add chars 0 - 9;                                  }                                  return $str;                                  break;                          case 5:                                  /* This will add these chars into the string !#$%&() */                                  $str = $this->getPool(4);                                  for($i = 0x21; $i < 0x29; $i++)                                  {                                          if($i == 0x22 || $i == 0x27) // Exclude characters " and '                                          {                                                  continue;                                          }                                          $str .= chr($i);                                  }                                  return $str;                                  break;                  }          }          function makePassword()          {                  srand ((double) microtime() * 1000000);                  $str="";                  while(strlen($str)< $this->intLength)                  {                          $str.=$this->pool[rand()%strlen($this->pool)];                  }                  return $str ;          }   }     ?>