Bug #19653 » 9852.diff
| t3lib/class.t3lib_div.php (working copy) | ||
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return strtr((string)$str, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz');
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}
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/**
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* Returns a string of highly randomized bytes (over the full 8-bit range).
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*
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* @copyright Drupal CMS
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* @license GNU General Public License version 2
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* @param integer Number of characters (bytes) to return
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* @return string Random Bytes
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*/
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public static function generateRandomBytes($count) {
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// We initialize with the somewhat random PHP process ID on the
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// first call.
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if (empty($random_state)) {
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$random_state = getmypid();
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}
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$output = '';
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// /dev/urandom is available on many *nix systems and is considered
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// the best commonly available pseudo-random source.
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if ($fh = @fopen('/dev/urandom', 'rb')) {
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$output = fread($fh, $count);
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fclose($fh);
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}
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// fallback if /dev/urandom is not available
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while (!isset($output{$count - 1})) {
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$random_state = md5(microtime() . mt_rand() . $random_state);
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$output .= md5(mt_rand() . $random_state, true);
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}
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return substr($output, 0, $count);
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}
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