How to create socket connection with php?

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login-form.php <?php require("do_html_header.php"); do_html_header(); ?> <body bgcolor="00FFCC"> <form id="loginForm" name="loginForm" method="post" action="login-exec.php"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <table width="300" border="0" align="center" cellpadding="2" cellspacing="0"> <tr> <td width="112"><b>Login</b></td> <td width="188"><input name="login" type="text" class="textfield" id="username" /></td> </tr> <tr> <td><b>Password</b></td> <td><input name="password" type="password" class="textfield" id="password" /></td> </tr> <tr> <td> </td> <td><input type="submit" name="Submit" value="Login" /></td> </tr> </table> </form> <center>Not yet a member? <a href="registration.php">Register</a></ce… </body> </html> login-exec.php <?php //Start session session_start(); //Include database connection details require_once("config.php"); require("clean.php"); //Array to store validation errors $errmsg_arr = array(); //Validation error flag $errflag = false; //Sanitize the POST values $username = clean($_POST['username']); $password = clean($_POST['password']); //Input Validations if($username == '') { $errmsg_arr[] = 'Login ID missing'; $errflag = true; } if($password == '') { $errmsg_arr[] = 'Password missing'; $errflag = true; } //If there are input validations, redirect back to the login form if($errflag) { $_SESSION['ERRMSG_ARR'] = $errmsg_arr; session_write_close(); header("location: login-form.php"); exit(); } //Create query $qry="SELECT * FROM users WHERE username='$username' AND password='$password'"; $result=mysql_query($qry); //Check whether the query was successful or not if($result) { if(mysql_num_rows($result) == 1) { //Login Successful session_regenerate_id(); $MEMBER = mysql_fetch_assoc($result); $_SESSION['SESS_USERNAME'] = $MEMBER['username']; $_SESSION['SESS_FIRST_NAME'] = $MEMBER['fname']; $_SESSION['SESS_LAST_NAME'] = $MEMBER['lname']; //print "Login success!"; session_write_close(); header("location: jobsmatchindex.php"); exit(); } else { //Login failed header("location: login-failed.php"); exit(); } } else { die("Query failed"); } ?>
Answer:

Are you sure it doesn't get past the login-form.php, or it flickers a bit when you submit, If it does it probably is submitted and since the validation fails, it gets back to the login-form.php. if any of the following condition occurs the code instructs to jump back to login-form.php by setting $errflag==true. $password == '' $username== '' mysql_num_rows($result) != 1 check properly by providing a valid userid and password and this may not happen.

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