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Generate password

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  1. 	function generatePassword ($length = 16)
  2. 	{
  3.  
  4. 	  // start with a blank password
  5. 	  $password = "";
  6.  
  7. 	  // define possible characters
  8. 	  $possible = "0123456789bcdfghjkmnpqrstvwxyz"; 
  9.  
  10. 	  // set up a counter
  11. 	  $i = 0; 
  12.  
  13. 	  // add random characters to $password until $length is reached
  14. 	  while ($i < $length) { 
  15.  
  16. 		// pick a random character from the possible ones
  17. 		$char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
  18.  
  19. 		// we don't want this character if it's already in the password
  20. 		if (!strstr($password, $char)) { 
  21. 		  $password .= $char;
  22. 		  $i++;
  23. 		}
  24.  
  25. 	  }
  26.  
  27. 	  // done!
  28. 	  return $password;
  29.  
  30. 	}

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