Hi, I am trying to write a php file which control the text size, color and...

Hi, I am trying to write a php file which control the text size, color and the parameters of a registration page. My code is not working, the registration page always stay in the default color.
Could I get some help ? My code is below.

display file

<?php session_start() ?>
<!DOCTYPE html>
<html>
<head>
   <meta charset="UTF-8">
   <title>User display window</title>
   <style>
       .center { text-align:center}
       </style>
   </head>
<body>
   <fieldset>
       <legend class="center">Text editing control </legend>
           <form class="center" name="session_editing" action="process.php" method="post">
               <label for="style">Select a control to style </style></br>
                   <select class="form_control" name="controlF" required>
                       <option value="backG">Background </option>
                       <option value="logIn">Login button</option>
                       <option value="inputText">Input text </option>
                   </select></br></br>
               <label for="font_size">Select the font size</label></br>
                   <input class="form_control" type="range" name="fontS" min="6" max="42" required></br></br>
               <label for="color_pick">Select the color</label></br>
                   <input class="form_control" type="color" name="color" required></br></br>
               <label for="visibility">
                   <input type="checkbox" name="visible">Select the visibility</label></br></br>
                   <input type="submit" value="Submit">
           </form>
       </fieldset>
   </body>
</html>

process file...

<?php
   session_start(); ?>
<!DOCTYPE html>
   <html>
       <head>
           <style type="text/css">
       <?php   if (isset($_POST['controlF']) && isset($_POST['fontS']) && isset($_POST['color'])) {
       $controlT=$_POST['controlF'];
       $_SESSION["fontControl"]=$_POST['fontS'];
       $_SESSION["colorControl"]=$_POST['color'];
       if (!isset($_POST['visible'])) {
           $_SESSION["elemVisible"]='none';
       } } ?>
               body {
                   text-align: center;
                   <?php
                       if ($controlT == 'backG') { ?>
                           background: <?php echo $_SESSION["colorControl"]; ?>
                           font-size: <?php echo $_SESSION["fontControl"].'px'; ?>
                       <?php }else { ?>
                           background: #ffffff;
                       <?php } ?>
               }
               .text {
                   <?php
                       if ($controlT == 'inputText') { ?>
                           color: <?php echo $_SESSION["colorControl"]; ?>
                           font-size: <?php echo $_SESSION["fontControl"].'px'; ?>
                           <?php if ($_SESSION["elemtVisible"] == 'none') {
                               echo 'display: none;';
                           } else { ?>
                               color: #000000;
                       <?php } } ?>
               }
               .login {
                   <?php
                       if ($controlT == 'logIn') { ?>
                           background-color: <?php echo $_SESSION["colorControl"]; ?>
                           font-size: <?php echo $_SESSION["fontControl"].'px'; ?>
                           <?php if ($_SESSION["elemtVisible"] == 'none') {
                               echo 'display: none;';
                       } } ?>
               }
               </style>
           </head>
       <body>
           <?php echo $controlT; ?>
           <h1 class="text"> Sign In</h1> </br></br>
           <label class="text"> Username </label></br>
           <input name="client_username" size="25" placeholder="Username..." /></label></br></br>
               <label class="text">Password </br> <label>
           <input name="client_password" type="password" id="client_password" placeholder="********" /></br></br>
           <input class="login" type="submit" value="Log In" />
   </body>
</html>

Thank you!!

Expert Solution

I have rectified the problem its working

process.php

<?php
   session_start(); ?>
<!DOCTYPE html>
   <html>
       <head>
           <style type="text/css">
       <?php   if (isset($_POST['controlF']) && isset($_POST['fontS']) && isset($_POST['color'])) {

       $controlT=$_POST['controlF'];
       $_SESSION["fontControl"]=$_POST['fontS'];
       $_SESSION["colorControl"]=$_POST['color'];
       if (!isset($_POST['visible'])) {
           $_SESSION["elemVisible"]='none';
       } } ?>
               body {
                   text-align: center;

<?php
                       if ($controlT == 'backG') { ?>
                           background: <?php echo $_SESSION["colorControl"]; ?>;
                           font-size: <?php echo $_SESSION["fontControl"].'px'; ?>;
                       <?php }else { ?>
                           background: #ffffff;
                       <?php } ?>
               }
               .text {
                   <?php
                       if ($controlT == 'inputText') { ?>
                           color: <?php echo $_SESSION["colorControl"]; ?>;
                           font-size: <?php echo $_SESSION["fontControl"].'px'; ?>;
                           <?php if ($_SESSION["elemtVisible"] == 'none') {
                               echo 'display: none;';
                           } else { ?>
                               color: #000000;
                       <?php } } ?>
               }
               .login {
                   <?php

                       if ($controlT == 'logIn') { ?>
                           background-color: <?php echo$_SESSION["colorControl"];?>;
                           font-size: <?php echo $_SESSION["fontControl"].'px'; ?>;
                           <?php if ($_SESSION["elemtVisible"] == 'none') {
                               echo 'display: none;';
                       } } ?>
               }
               </style>
           </head>
       <body>
           <?php echo $controlT ?>
           <h1 class="text"> Sign In</h1> </br></br>
           <label class="text"> Username </label></br>
           <input name="client_username" size="25" placeholder="Username..." /></label></br></br>
               <label class="text">Password </br> <label>
           <input name="client_password" type="password" id="client_password" placeholder="********" /></br></br>
           <input class="login" type="submit" value="Log In" />
   </body>
</html>

Output

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