в 10:37, 26 мая 2010

2010-05-26T10:37:34Z

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2010-05-26T07:06:19Z

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==Calculating password length with DBM==



<source lang="html4strict">

<?php
$data_file = "/tmp/users.db";
$total_length = 0;
if (! ($dbh = dba_open($data_file,"r","gdbm"))) {
die("Can"t open database $data_file");
}
$k = dba_firstkey($dbh);
while ($k) {
$total_length += strlen(dba_fetch($k,$dbh));
$k = dba_nextkey($dbh);
}
print "Total length of all passwords is $total_length characters.";
dba_close($dbh);
?>

</source>

==Storing structured data in a DBM database==



<source lang="html4strict">

<?php
$dbh = dba_open("users.db","c","gdbm") or die($php_errormsg);
if ($exists = dba_exists($_POST["username"], $dbh)) {
$serialized_data = dba_fetch($_POST["username"], $dbh) or die($php_errormsg);
$data = unserialize($serialized_data);
} else {
$data = array();
}
if ($_POST["new_password"]) {
$data["password"] = $_POST["new_password"];
}
$data["last_access"] = time();
if ($exists) {
dba_replace($_POST["username"],serialize($data), $dbh);
} else {
dba_insert($_POST["username"],serialize($data), $dbh);
}
dba_close($dbh);
?>

</source>

==Tracking users and passwords with a DBM database==



<source lang="html4strict">

<?php
$user = $_SERVER["argv"][1];
$password = $_SERVER["argv"][2];
$data_file = "/tmp/users.db";
$dbh = dba_open($data_file,"c","gdbm") or die("Can"t open db $data_file");
if (dba_exists($user,$dbh)) {
print "User $user exists. Changing password.";
} else {
print "Adding user $user.";
}
dba_replace($user,$password,$dbh) or die("Can"t write to database $data_file");
dba_close($dbh);
?>

</source>

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PHP/MySQL Database/DBM - История изменений

в 10:37, 26 мая 2010

Admin: 1 версия