user_password($length = 10)
Generate a random alphanumeric password.
File
- core/modules/user/user.module, line 281
- Enables the user registration and login system.
Code
function user_password($length = 10) { // This variable contains the list of allowable characters for the // password. Note that the number 0 and the letter 'O' have been // removed to avoid confusion between the two. The same is true // of 'I', 1, and 'l'. $allowable_characters = 'abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789'; // Zero-based count of characters in the allowable list: $len = strlen($allowable_characters) - 1; // Declare the password as a blank string. $pass = ''; // Loop the number of times specified by $length. for ($i = 0; $i < $length; $i++) { do { // Find a secure random number within the range needed. $index = ord(Crypt::randomBytes(1)); } while ($index > $len); // Each iteration, pick a random character from the // allowable string and append it to the password: $pass .= $allowable_characters[$index]; } return $pass; }
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