我试图在php中生成一个随机密码。
但是我得到的都是'a'返回类型是数组类型，我希望它是字符串。对如何修改代码有什么想法吗?
谢谢。
function randomPassword() {
$alphabet = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ0123456789";
for ($i = 0; $i < 8; $i++) {
$n = rand(0, count($alphabet)-1);
$pass[$i] = $alphabet[$n];
}
return $pass;
}
当前回答
Create a file with this code in it. Call it like in the comments. <?php /** * @usage : * include_once($path . '/Password.php'); * $Password = new Password; * $pwd = $Password->createPassword(10); * return $pwd; * */ class Password { public function createPassword($length = 15) { $response = []; $response['pwd'] = $this->generate($length); $response['hashPwd'] = $this->hashPwd( $response['pwd'] ); return $response; } private function generate($length = 15) { $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*(){}/?,><"; return substr(str_shuffle($chars),0,$length); } private function hashPwd($pwd) { return hash('sha256', $pwd); } } ?>
其他回答
以下是我对选项列表的贡献。
该功能可以确保密码策略被满足。
function password_generate($length=8, $min_lowercases=1, $min_uppercases=1, $min_numbers=1, $min_specials=0) {
$lowercases = 'abcdefghijklmnopqrstuvwxyz';
$uppercases = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
$numbers = '0123456789';
$specials = '!#%&/(){}[]+-';
$absolutes = '';
if ($min_lowercases && !is_bool($min_lowercases)) $absolutes .= substr(str_shuffle(str_repeat($lowercases, $min_lowercases)), 0, $min_lowercases);
if ($min_uppercases && !is_bool($min_uppercases)) $absolutes .= substr(str_shuffle(str_repeat($uppercases, $min_uppercases)), 0, $min_uppercases);
if ($min_numbers && !is_bool($min_numbers)) $absolutes .= substr(str_shuffle(str_repeat($numbers, $min_numbers)), 0, $min_numbers);
if ($min_specials && !is_bool($min_specials)) $absolutes .= substr(str_shuffle(str_repeat($specials, $min_specials)), 0, $min_specials);
$remaining = $length - strlen($absolutes);
$characters = '';
if ($min_lowercases !== false) $characters .= substr(str_shuffle(str_repeat($lowercases, $remaining)), 0, $remaining);
if ($min_uppercases !== false) $characters .= substr(str_shuffle(str_repeat($uppercases, $remaining)), 0, $remaining);
if ($min_numbers !== false) $characters .= substr(str_shuffle(str_repeat($numbers, $remaining)), 0, $remaining);
if ($min_specials !== false) $characters .= substr(str_shuffle(str_repeat($specials, $remaining)), 0, $remaining);
$password = str_shuffle($absolutes . substr($characters, 0, $remaining));
return $password;
}
参数$min_*可以有以下值:
1-999 =需要 True =可选 False =禁用
它可以像下面这样使用:
echo password_generate(8); // Outputs a random 8 characters long password
10个字符的密码，每组至少有2个字符:
echo password_generate(10, 2, 2, 2, 2);
只输出6个随机数
echo password_generate(6, false, false, true, false);
快速。简单，干净和一致的格式，如果这是你想要的
$pw = chr(mt_rand(97,122)).mt_rand(0,9).chr(mt_rand(97,122)).mt_rand(10,99).chr(mt_rand(97,122)).mt_rand(100,999);
另一个(仅限linux)
function randompassword()
{
$fp = fopen ("/dev/urandom", 'r');
if (!$fp) { die ("Can't access /dev/urandom to get random data. Aborting."); }
$random = fread ($fp, 1024); # 1024 bytes should be enough
fclose ($fp);
return trim (base64_encode ( md5 ($random, true)), "=");
}
我创建了一个更全面、更安全的密码脚本。这将创建两个大写字母、两个小写字母、两个数字和两个特殊字符的组合。总共8个字符。
$char = [range('A','Z'),range('a','z'),range(0,9),['*','%','$','#','@','!','+','?','.']];
$pw = '';
for($a = 0; $a < count($char); $a++)
{
$randomkeys = array_rand($char[$a], 2);
$pw .= $char[$a][$randomkeys[0]].$char[$a][$randomkeys[1]];
}
$userPassword = str_shuffle($pw);
//define a function. It is only 3 lines!
function generateRandomPassword($length = 5){
$chars = "0123456789bcdfghjkmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ";
return substr(str_shuffle($chars),0,$length);
}
//usage
echo generateRandomPassword(5); //random password legth: 5
echo generateRandomPassword(6); //random password legth: 6
echo generateRandomPassword(7); //random password legth: 7
