关于PHP中获取随机密码的疑问
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function get_random_word($min_length, $max_length)
$word = '';
$dictionary = '/usr/dict/words';
$fp = @fopen($dictionary, 'r');
if(!$fp)
return false;
$size = filesize($dictionary);
srand ((double) microtime() * 1000000);
$rand_location = rand(0, $size);
fseek($fp, $rand_location);
while (strlen($word)< $min_length || strlen($word)>$max_length || strstr($word, "'"))
{
if (feof($fp))
fseek($fp, 0); // if at end, go to start
$word = fgets($fp, 80); // skip first word as it could be partial
$word = fgets($fp, 80); // the potential password
};
$word=trim($word); // trim the trailing \n from fgets
return $word;
}
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