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 $pass;
}
Generates a strong password of length 8 containing at least one lower case letter, one uppercase letter, one digit, and one special character. You can change the length in the code too.
function checkForCharacterCondition($string) {
return (bool) preg_match('/(?=.*([A-Z]))(?=.*([a-z]))(?=.*([0-9]))(?=.*([~`\!@#\$%\^&\*\(\)_\{\}\[\]]))/', $string);
}
$j = 1;
function generate_pass() {
global $j;
$allowedCharacters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ~`!@#$%^&*()_{}[]';
$pass = '';
$length = 8;
$max = mb_strlen($allowedCharacters, '8bit') - 1;
for ($i = 0; $i < $length; ++$i) {
$pass .= $allowedCharacters[random_int(0, $max)];
}
if (checkForCharacterCondition($pass)){
return '<br><strong>Selected password: </strong>'.$pass;
}else{
echo 'Iteration '.$j.': <strong>'.$pass.'</strong> Rejected<br>';
$j++;
return generate_pass();
}
}
echo generate_pass();
有一个简短的解决方案(php 8.1):
$dict = array_merge(
...array_map(
fn(array $d): array => range(ord($d[0]), ord($d[1])),
[["0", "9"], ["a", "z"], ["A", "Z"]]
)
);
$f = fn (int $len): string =>
join(
"",
array_map(
fn (): string => chr($dict[random_int(0, count($dict) - 1)]),
range(0, $len)
)
);
echo $f(12) . PHP_EOL;
一行bash脚本:
PHP -r '$dict = array_merge(…到fn(数组$ d):数组= >范围(奥德($ d[0]),奥德($ d[1])),(“0”,“9”,“一个”、“z”,[“一”、“z”]]));$ f = fn (int len美元):字符串= >加入(“”,到(fn():字符串= >科($ dict [random_int (0, count ($ dict) - 1))),范围(0,len美元)));Echo $f(12)。PHP_EOL;”
这是来自https://stackoverflow.com/a/41077923/5599052的想法
我的答案与上面的一些类似,但我去掉了元音,数字1和0,字母I, j, I, l, O, O, Q, Q, X, X, Y, Y, W, W。原因是:第一个很容易混淆(就像l和1,取决于字体),其余的(从Q开始)是因为它们在我的语言中不存在,所以对于超级终端用户来说可能有点奇怪。字符串仍然足够长。此外,我知道使用一些特殊的标志是理想的,但他们也与一些最终用户相处不好。
function generatePassword($length = 8) {
$chars = '23456789bcdfhkmnprstvzBCDFHJKLMNPRSTVZ';
$shuffled = str_shuffle($chars);
$result = mb_substr($shuffled, 0, $length);
return $result;
}
此外,通过这种方式,我们避免重复相同的字母和数字(不包括匹配情况)
试着用大写字母,小写字母,数字和特殊字符
function generatePassword($_len) {
$_alphaSmall = 'abcdefghijklmnopqrstuvwxyz'; // small letters
$_alphaCaps = strtoupper($_alphaSmall); // CAPITAL LETTERS
$_numerics = '1234567890'; // numerics
$_specialChars = '`~!@#$%^&*()-_=+]}[{;:,<.>/?\'"\|'; // Special Characters
$_container = $_alphaSmall.$_alphaCaps.$_numerics.$_specialChars; // Contains all characters
$password = ''; // will contain the desired pass
for($i = 0; $i < $_len; $i++) { // Loop till the length mentioned
$_rand = rand(0, strlen($_container) - 1); // Get Randomized Length
$password .= substr($_container, $_rand, 1); // returns part of the string [ high tensile strength ;) ]
}
return $password; // Returns the generated Pass
}
假设我们需要10位Pass
echo generatePassword(10);
示例输出:
IZCQ_IV \ 7
@wlqsfhT (d
是1!8 + 1 \ 4 @ud