php生成随机密码实现函数总结-PHP源码

function generatePassword($length=8)
{
$chars = array_merge(range(0,9),
range('a','z'),
range('A','Z'),
array('!','@','$','%','^','&','*'));
shuffle($chars);
$password = '';
for($i=0; $i<8; $i++) {
$password .= $chars[$i];
}
return $password;
}

function create_password($pw_length = 8)
{
$randpwd = '';
for ($i = 0; $i <$pw_length; $i++)
{
$randpwd .= chr(mt_rand(33, 126));
}
return $randpwd;
}

// 调用该函数，传递长度参数$pw_length = 6
echo create_password(6);

mt_srand((double) microtime() * 1000000);

function gen_random_password($password_length = 32, $generated_password = ""){
$valid_characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$chars_length = strlen($valid_characters) - 1;
for($i = $password_length; $i--; ) {
//$generated_password .= $valid_characters[mt_rand(0, $chars_length)];

$generated_password .= substr($valid_characters, (mt_rand()%(strlen($valid_characters))), 1);
}
return $generated_password;
}

?>






密码生成器v4.0 by freemouse



if (isset($_GET['password_length'])){
if(preg_match("/([0-9]{1,8})/", $_GET['password_length'])){
print("密码生成成功:

" . gen_random_password($_GET['password_length']) . "

n");
} else {
print("密码长度不正确!

n");
}
}

print << 请为密码生成其指定生成密码的长度:






end;

?>

function generate_password( $length = 8 ) {
// 密码字符集，可任意添加你需要的字符
$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}<>~`+=,.;:/?|';

$password = '';
for ( $i = 0; $i <$length; $i++ )
{
// 这里提供两种字符获取方式
// 第一种是使用 substr 截取$chars中的任意一位字符；
// 第二种是取字符数组 $chars 的任意元素
// $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
$password .= $chars[ mt_rand(0, strlen($chars) - 1) ];
}

return $password;
}

function make_password( $length = 8 )
{
// 密码字符集，可任意添加你需要的字符
$chars = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
'i', 'j', 'k', 'l','m', 'n', 'o', 'p', 'q', 'r', 's',
't', 'u', 'v', 'w', 'x', 'y','z', 'A', 'B', 'C', 'D',
'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L','M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y','Z',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '!',
'@','#', '$', '%', '^', '&', '*', '(', ')', '-', '_',
'[', ']', '{', '}', '<', '>', '~', '`', '+', '=', ',',
'.', ';', ':', '/', '?', '|');

// 在 $chars 中随机取 $length 个数组元素键名
$keys = array_rand($chars, $length);

$password = '';
for($i = 0; $i <$length; $i++)
{
// 将 $length 个数组元素连接成字符串
$password .= $chars[$keys[$i]];
}

return $password;
}