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PHP - Using Preg_match Or Explode To Parse Out Hash
$hash = file_get_contents("url");
the source code has this '<input type="hidden" name="hash" value="Mr607qtwQQuX">' how could I get preg_match or explode to parse out just the hash Mr607qtwQQuX? thanks Similar TutorialsLets say I have a URL of http://mydomain.com/somename/ I need a function to grab USERNAME However I need it to work if someone uses http://www.mydomain.com/USERNAME/ OR With or without the trailing / after USERNAME I can't see to figure anything out which accounts for the many different variables that a person could type it. And yet another way is that the URL could be http://www.mydomain.com/USERNAME/SOME-CAT/SOME-POST/ Thanks If I explode a string well using a substring when I implode that substring is now missing. for example. Code: [Select] $exploded = explode("[MAC]",$data); $data = implode($exploded); Now [MAC] would be missing in the $data string. any way to get around this? Guys, Having a major headache here. I need to send an enquiry using jquery and php. The user can only send an enquiry if they are logged in - so it's a one click process. On the click (which is an <a> tag) the user's data is retrieved from the database and sent to the company they are enquiring about. When the link is clicked, a jquery popup is shown to notify the user that the enquiry has been sent. This all works. However, currently the enquiry is sent when the page loads and this is what I'm having trouble with. Code: [Select] <a href="#e" onclick="openinfobox('Enquiry Sent', 1)" class="enq"></a>What I want to do is say if the URL contains #e, then send the enquiry, otherwise do nothing. I understand that the # portion of the url cannot be referenced by PHP. How on earth can I run php process to say only run this php process if there is a # in the url? I have a section on my website where the url points to www.example.com/some_page#some_element #some_element is used by javascript to load the element in question into the parent element. However i need pagination done on this loaded element. How should i go about it? would it work? obv i cant use www.example.com/some_page#some_element/page/2. Any tips or advice? Is a hash array the same thing as an associative array? My PHP books make no reference to this, yet I have seen the term referred to. Thanks. Are there any PHP hashes that are extremely secure and that CANNOT be reverse-engineered?
Im using SMF forum im trying to connect (my software C#) and grand access from forum DB this is a hash from SMF sha1(strtolower($membername) . $password); Code: [Select] <?php include("config.php"); $user = "-1"; if (isset($_GET['user'])) { $user = $_GET['user']; } $pass = "-1"; if (isset($_GET['pass'])) { $pass = $_GET['pass']; } $ip = $_SERVER['REMOTE_ADDR']; $sql = "select id_member,count from smf_members where real_name='$user' and passwd=MD5('$pass')"; $results = mysql_query($sql, $con); $values = mysql_fetch_assoc($results); $user_id = $values['id_member']; $login=$values['count']; ?> MD5 working fine but how to use SMF hash to login? HI, I have a registration script where a password is made with one hash, and a user password reset page that uses another hash. I don't know how to make them the same, as every time I change them, it messes up the code and I get errors. I will comment the parts that I think need changing. Because when I try to log in with the new password that was made by the reset password script, it says "wrong username or password" because either it wasn't updated in the database, or it was updated in a bad way. Any help greatly appreciated. The password email reset code: Code: [Select] <?php define('IN_SCRIPT', true); // Start a session session_start(); ini_set ("display_errors", "1"); error_reporting(E_ALL); $host = ""; $database = ""; $username = ""; $password = ""; $tbl_name = ""; $conn = mysql_connect($host, $username, $password) or die("Could not connect: " . mysql_error()); if($conn) { mysql_select_db($database); echo "connected to database!!"; } else { echo "failed to select database"; } //this function will display error messages in alert boxes, used for login forms so if a field is invalid it will still keep the info //use error('foobar'); function error($msg) { ?> <html> <head> <script language="JavaScript"> <!-- alert("<?=$msg?>"); history.back(); //--> </script> </head> <body> </body> </html> <? exit; } //This functions checks and makes sure the email address that is being added to database is valid in format. function check_email_address($email) { // First, we check that there's one @ symbol, and that the lengths are right if (!ereg("^[^@]{1,64}@[^@]{1,255}$", $email)) { // Email invalid because wrong number of characters in one section, or wrong number of @ symbols. return false; } // Split it into sections to make life easier $email_array = explode("@", $email); $local_array = explode(".", $email_array[0]); for ($i = 0; $i < sizeof($local_array); $i++) { if (!ereg("^(([A-Za-z0-9!#$%&'*+/=?^_`{|}~-][A-Za-z0-9!#$%&'*+/=?^_`{|}~\.-]{0,63})|(\"[^(\\|\")]{0,62}\"))$", $local_array[$i])) { return false; } } if (!ereg("^\[?[0-9\.]+\]?$", $email_array[1])) { // Check if domain is IP. If not, it should be valid domain name $domain_array = explode(".", $email_array[1]); if (sizeof($domain_array) < 2) { return false; // Not enough parts to domain } for ($i = 0; $i < sizeof($domain_array); $i++) { if (!ereg("^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$", $domain_array[$i])) { return false; } } } return true; } if (isset($_POST['submit'])) { if ($_POST['forgotpassword']=='') { error('Please Fill in Email.'); } if(get_magic_quotes_gpc()) { $forgotpassword = htmlspecialchars(stripslashes($_POST['forgotpassword'])); } else { $forgotpassword = htmlspecialchars($_POST['forgotpassword']); } //Make sure it's a valid email address, last thing we want is some sort of exploit! if (!check_email_address($_POST['forgotpassword'])) { error('Email Not Valid - Must be in format of name@domain.tld'); } // Lets see if the email exists $sql = "SELECT COUNT(*) FROM users WHERE email = '$forgotpassword'"; $result = mysql_query($sql)or die('Could not find member: ' . mysql_error()); if (!mysql_result($result,0,0)>0) { error('Email Not Found!'); } //Generate a RANDOM MD5 Hash for a password//THIS IS THE POSSIBLE PROBLEM $random_password=md5(uniqid(rand())); //Take the first 8 digits and use them as the password we intend to email the user $emailpassword=substr($random_password, 0, 8); //Encrypt $emailpassword in MD5 format for the database $newpassword = md5($emailpassword); // Make a safe query $newpassword = mysql_real_escape_string($newpassword); $query = sprintf("UPDATE 'users' SET 'password' = '$newpassword' WHERE 'email' = '$forgotpassword'"); //Email out the infromation $site_name = "mysite.COM"; $site_email = "noreply@mysite.COM"; $subject = "Your New Password"; $message = "Your new password is as follows: ---------------------------- Password: $emailpassword ---------------------------- Please make note this information has been encrypted into our database This email was automatically generated."; if(!mail($forgotpassword, $subject, $message, "FROM: $site_name <$site_email>")){ die ("Sending Email Failed, Please Contact Site Admin! ($site_email)"); }else{ error('New Password Sent!.'); } } else { ?> <form name="forgotpasswordform" action="" method="post"> <table border="0" cellspacing="0" cellpadding="3" width="100%"> <caption> <div>Forgot Password</div> </caption> <tr> <td>Email Address:</td> <td><input name="forgotpassword" type="text" value="" id="forgotpassword" /></td> </tr> <tr> <td colspan="2" class="footer"><input type="submit" name="submit" value="Submit" class="mainoption" /></td> </tr> </table> </form> <? } ?> And now for the registration and password creation script Code: [Select] <?php $host = " "; $database = " "; $username = " "; $password = " "; mysql_connect($host, $username, $password) or die("Could not connect: " . mysql_error()); mysql_select_db($database); if ($_POST['form_submitted'] == '1') { ##User is registering, insert data until we can activate it $activationKey = mt_rand() . mt_rand() . mt_rand() . mt_rand() . mt_rand(); $username = mysql_real_escape_string($_POST[username]); $email = mysql_real_escape_string($_POST[email]); ////////////////////////////////////////////////////////////////////////// $username= $_POST['username']; $checkuser = mysql_query("SELECT username FROM users WHERE username='$username'"); $username_exist = mysql_num_rows($checkuser); if($username_exist > 0){ echo "I'm sorry but the username you specified has already been taken. Please pick another one."; unset($username); $sendemail='0'; } /////////////////////////////////////////////////////////////////////////////////// $email= $_POST['email']; $checkemail = mysql_query("SELECT email FROM users WHERE email='$email'"); $useremail_exist = mysql_num_rows($checkemail); if($useremail_exist > 0){ echo "I'm sorry but the email address you specified has already been taken. Please pick another one."; unset($email); $sendemail='0'; } ////////////////////////////////////////////////////////////////////////////// if ( $_POST['password'] == $_POST['password2'] && $username_exists <=0 && $useremail_exist <= 0) { $password = sha1($_POST['password']); $sql="INSERT INTO users (username, password, email, activationkey, status) VALUES ('$username', '$password', '$email', '$activationKey', 'verify')"; $sendemail = '1'; } else { echo "*Passwords do not match!"; $sendemail='0'; } if (!mysql_query($sql)) { die('Error: ' . mysql_error()); } $_POST['form_submitted'] = '0'; //make form disappear. if ($sendemail =='1') { echo "An email has been sent to $_POST[email] with an activation key. Please check your mail to complete registration."; } ##Send activation Email $to = $_POST[email]; $subject = " Registration"; $message = "Welcome to our website! verify_user.php?$activationKey\r\rIf this is an error, ignore this email and you will be removed from our mailing list.\r\rRegards,\ Team"; $headers = 'From: noreply@r.com' . "\r\n" . 'Reply-To: noreply@r.com' . "\r\n" . 'X-Mailer: PHP/' . phpversion(); mail($to, $subject, $message, $headers); } else { ##User isn't registering, check verify code and change activation code to null, status to activated on success $queryString = $_SERVER['QUERY_STRING']; $query = "SELECT * FROM users"; $result = mysql_query($query) or die(mysql_error()); /*if*/ while($row = mysql_fetch_array($result)){ if ($queryString == $row["activationkey"]){ $_POST['form_submitted'] = '2'; //make form disappear. echo "Congratulations!" . $row["username"] . " is now the proud new owner of an e.com account. Please sign in to the site at <a href='sign_in.php'>THIS LINK</a>. "; $sql=" UPDATE users SET status='activated' WHERE (id = $row[id])"; //UPDATE users SET activationkey = '', //$sql="UPDATE users SET activationkey = 'Done-$row[id]', status='activated' WHERE (id = $row[id])"; if (!mysql_query($sql)) { die('Error: ' . mysql_error()); } } } } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <style type="text/css"> <!-- .style1 { font-size: large; font-weight: bold; } .style3 {font-size: large} --> </style> </head> <body> <?php if (!isset ($_POST['form_submitted'])){ echo (' <div align="center"><span class="style3"> Please register. </span> <table border="0"> <form action="verify_user.php" method="post" name="register"> <tr><td>Username: <input type="text" name="username" maxlength="20"></td></tr> <tr><td>Password:<input type="password" name="password" /></td><td> <tr><td>Confirm password: <input type="password" name="password2" maxlength="20"></td><td> <tr><td> Email: <input type="text" name="email" /></td></tr> <input type="hidden" name="form_submitted" value="1"/> <tr><td><input type="submit" value="Submit" /></td></tr> </form> </table> </div>'); } if ( $_POST['form_submitted'] =='2'){ echo (" You may now enter the site!");//echo nothing no form. } ?> </body> </html> Im trying to access a page that uses a session hash in the url. How do I accomplish this. The url looks like: http://www.somesite.com/findagent/MapController.aspx?action=getAgentsByRadius&distance=5&filter=PL&sessionhash=%3F%01j%23%3Eo%0AH%05h%0B%3FU%0B%3F%3F%3F%7B%3F%3C&zip=91111 I guess getting the session id and urlencoding on my end wouldnt work? I would have to grab their session id and encode somehow? When a User changes his/her Email Address, should I generate a new Salt and Hash? (I am re-using the code I used for a Password Reset, and during that I generated a new Salt and Hash for security. I guess it can't hurt...) Thanks, Debbie Trying to echo a string that contains a hash symbol. Instead of getting a hash symbol, I get %29. The code I am using is pretty basic -->$idx="#" . $idxA;<--, but as stated, when I echo $idx, it comes out as %29. (All of this is part of a form, get, attempting to pass a bookmark to the receiving program. Thoughts? Hello, I created a system where emails get encrypted with a random key that gets stored in a database, what are the odds of the Hashes Colliding? Part of the code: function genRandomString($num) { $length = $num; $characters = '0123456789abcdefghijklmnopqrstuvwxyz'; $string = ""; for ($p = 0; $p < $length; $p++) { $string .= $characters[mt_rand(0, strlen($characters))]; } return $string; } $Key=genRandomString(10); $email_s=hash_hmac('ripemd160', $email, $Key); Thankyou, GB. What is the difference between the hash algo "tiger192,3" and "tiger192,4"? I ran fsum/HashCalc to get a TIGER hash from a string and it is different with either "tiger192,3" or "tiger192,4". I also tried using the hash as hex string input to rehash 3 or 4 times, but still cannot get an equivalent to that of "tiger192,3" or "tiger192,4"... Hi SMF forum use semi-colom in url for example http://www.phpfreaks.com/forums/profile/?area=showposts;u=71740 after showposts there is semi-colon. Sometimes use hash(#) how can i do this with superglobal $_GET??? Hi,
I am trying to get this script to execute as an administrator of an online system. If a user has forgotten their password, I enter their username and enter a new password which they can update later. I am not sure why this is not updating the password for the username entered?
<?php
// Initialize the session
session_start();
// Check if the user is logged in, if not then redirect to login page
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
header("location: login.php");
exit;
}
// Include config file
require_once "config.php";
// Define variables and initialize with empty values
$new_password = $confirm_password = "";
$new_password_err = $confirm_password_err = "";
// Processing form data when form is submitted
if($_SERVER["REQUEST_METHOD"] == "POST"){
// Validate new password
if(empty(trim($_POST["new_password"]))){
$new_password_err = "Please enter the new password.";
} elseif(strlen(trim($_POST["new_password"])) < 6){
$new_password_err = "Password must have atleast 6 characters.";
} else{
$new_password = trim($_POST["new_password"]);
}
// Validate confirm password
if(empty(trim($_POST["confirm_password"]))){
$confirm_password_err = "Please confirm the password.";
} else{
$confirm_password = trim($_POST["confirm_password"]);
if(empty($new_password_err) && ($new_password != $confirm_password)){
$confirm_password_err = "Password did not match.";
}
}
// Check input errors before updating the database
if(empty($new_password_err) && empty($confirm_password_err)){
// Prepare an update statement
$sql = "UPDATE User_Accounts_ SET password = ? WHERE username = ?";
if($stmt = mysqli_prepare($link, $sql)){
// Bind variables to the prepared statement as parameters
mysqli_stmt_bind_param($stmt, "ss", $param_password, $username);
// Set parameters
$param_password = password_hash($new_password, PASSWORD_DEFAULT);
$username = $_POST['username'];
// Attempt to execute the prepared statement
if(mysqli_stmt_execute($stmt)){
// Password updated successfully. Destroy the session, and redirect to login page
session_destroy();
header("location: login.php");
exit();
} else{
echo "Oops! Something went wrong. Please try again later.";
}
// Close statement
mysqli_stmt_close($stmt);
}
}
// Close connection
mysqli_close($link);
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Reset Password</title>
<style type="text/css">
body{ font: 14px sans-serif; }
.wrapper{ width: 350px; padding: 20px; }
</style>
</head>
<body>
<div class="wrapper">
<h2>Reset Password</h2>
<p>Please fill out this form to reset your password.</p>
<p><strong>Username</strong>
<input type="text" name="username" class="form-control">
</p>
<p> </p>
<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
<div class="form-group <?php echo (!empty($new_password_err)) ? 'has-error' : ''; ?>">
<label>New Password</label>
<input type="password" name="new_password" class="form-control" value="<?php echo $new_password; ?>">
<span class="help-block"><?php echo $new_password_err; ?></span>
</div>
<div class="form-group <?php echo (!empty($confirm_password_err)) ? 'has-error' : ''; ?>">
<label>Confirm Password</label>
<input type="password" name="confirm_password" class="form-control">
<span class="help-block"><?php echo $confirm_password_err; ?></span>
</div>
<div class="form-group">
<input type="submit" class="btn btn-primary" value="Submit">
<a class="btn btn-link" href="welcome.php">Cancel</a>
</div>
</form>
</div>
</body>
</html>
I have a login system Username and Password.
My password is encrypted with bcrypt, if it okay to store that bcrypt in a session as $_SESSION["hash"]
To verify that the user is who they say they are?
Or do i only need to do
$_SESSION["username"]
Hi,
Recently I've been trying writing a safe password hash and I wanted to know that if I use an MD5 hash at the end, just so it will be like some short of "packed",so instead of saving a 128 string, I'll use md5 to "pack" it into 32 characters and save up to 96 characters.
I know MD5 isn't safe and all, but the question is, does it lower the security ?
Also, would be happy for feedbacks about my password hash
function hash_($input,$key) {
$op=hash("whirlpool",hash("sha512",$key) . "$" . $input . "$" . hash("sha512",$key));what would be the correct way to add an MD5 has to the following POST code? $_POST['pass'] = mysql_real_escape_string($_POST ['pass']); '".$_POST ['pass']."', thanks in advance! hi all am new to this forum help me to overcome from this error Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING' in D:\wamp\www\quiz1\quiz1.php on line 12 Code: [Select] <?php include("contentdb.php"); $display = mysql_query("SELECT * FROM $table ORDER BY id",$db); if (!$submit) { echo "<form method=post action=$_SERVER['PHP_SELF']>"; echo "<table border=0>"; while ($row = mysql_fetch_array($display)) { $id = $row["id"]; $question = $row["question"]; $opt1 = $row["opt1"]; $opt2 = $row["opt2"]; $opt3 = $row["opt3"]; $answer = $row["answer"]; echo "<tr><td colspan=3><br><b>$question</b></td></tr>"; echo "<tr><td>$opt1 <input type=radio name=q$id value=\"$opt1\"></td><td>$opt2 <input type=radio name=q$id value=\"$opt2\"></td><td>$opt3 <input type=radio name=q$id value=\"$opt3\"></td></tr>"; } echo "</table>"; echo "<input type='submit' value='See how you did' name='submit'>"; echo "</form>"; } elseif ($submit) { $score = 0; $total = mysql_num_rows($display); while ($result = mysql_fetch_array($display)) { $answer = $result["answer"]; $q = $result["q"]; if ($$q == $answer) { $score++; } } echo "<p align=center><b>You scored $score out of $total</b></p>"; echo "<p>"; if ($score == $total) { echo "Congratulations! You got every question right!"; } elseif ($score/$total < 0.34) { echo "Oh dear. Not the best score, but don't worry, it's only a quiz."; } elseif ($score/$total > 0.67) { echo "Well done! You certainly know your stuff."; } else { echo "Not bad - but there were a few that caught you out!"; } echo "</p>"; echo "<p>Here are the answers:"; echo "<table border=0>"; $display = mysql_query("SELECT * FROM $table ORDER BY id",$db); while ($row = mysql_fetch_array($display)) { $question = $row["question"]; $answer = $row["answer"]; $q = $row["q"]; echo "<tr><td><br>$question</td></tr>"; if ($$q == $answer) { echo "<tr><td>»you answered ${$q}, which is correct</td></tr>"; } elseif ($$q == "") { echo "<tr><td>»you didn't select an answer. The answer is $answer</td></tr>"; } else { echo "<tr><td>»you answered ${$q}. The answer is $answer</td></tr>"; } } echo "</table></p>"; } ?> thanks in adavance Hello I have one problem with fwrite() I have one script to get width and height from javascript and echo it with PHP. echo "Screen width is: ". $_GET['width'] ."<br />\n"; echo "Screen height is: ". $_GET['height'] ."<br />\n"; It works but i want to store the result in a file fwrite($info,"Height: $_GET['height'] <br />"); But then I get error Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING //////////////////////// it would be even better if I don't have to print the values but directly store them in $iinfo sorry if something similar was soved but those examples were different or i was unable to transform it to solve my problem |
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