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PHP

James Barrett
James Barrett
13,253 Points
Posted by James Barrett
James Barrett
13,253 Points

Why is my error message not echoing to the screen?

When the user submits a form, the PHP will check to see if the $post was empty, if so, it will set an $error_message variable; thus database INSERT query will not execute. I then attempt to show the error message further on in the code, however it will not display. I have been trying to figure this out for hours and I still cannot find the solution. The funny thing is, this used to work, however I must have implemented something in this file which is preventing the code to execute correctly.

PHP:

    <?php require("inc/db.php"); ?>
    <?php include("inc/functions.php"); ?>
    <?php include ("inc/ChromePhp.php"); ?>
    <?php
    error_reporting(E_ALL);
    ini_set('display_errors', 1);
    ini_set("html_errors", 1);
    session_start();
    if(!isset($_GET['id'])) {
      header("Location: ?id=".getUserId($_SESSION['U_Email']));
    }
    if(isset($_SESSION["U_Email"])) {
      $usersData = getUserInfo($_GET['id']);
      $postCount = getPostCount($_GET['id']);
    } else {
      header('Location: login.php'); 
    }

    if($_SERVER["REQUEST_METHOD"] == "POST") {
      $post = trim(filter_input(INPUT_POST,"user_post",FILTER_SANITIZE_SPECIAL_CHARS));

      if($post == "") {
        $error_message = "Please enter something before submitting";
      }

      if(!isset($error_message)) {
        $post = $db->real_escape_string($post);
        $postStore = $db->query("INSERT INTO `Post`(P_Body, P_Dateadded, User_U_ID)     VALUES ('{$post}', NOW(), '{$_SESSION['U_ID']}' )");
      }
    }

    $dashNav = true;
    $cap = true;
    $pageTitle = 'Profile';
    $name = $usersData['U_Forename'] . " " . $usersData['U_Surname'];
    $gender = $usersData['U_Gender'];
    $bio = $usersData['U_Biography'];
    $team = $usersData['U_Team'];
    $city = $usersData['U_City'];
    include("inc/header.php");
    ?>

      <?php if(userExists($_GET['id'])) { ?>
      <section>
        <div class="wrapper">
          <?php
          if($_SESSION['U_ID'] != $_GET['id']) {
            $testFollow = "SELECT `Following`.F_ID, `Following`.U_ID FROM `Following`
            WHERE U_ID = '{$_SESSION['U_ID']}' AND F_ID = '{$_GET['id']}'";
            $testFollowResult = $db->query($testFollow);
            if ($testFollowResult->num_rows > 0) {
              echo "<button class='lift' href='#'>Unfollow Driver</button>";
            } else {
              echo "<button class='lift' href='#'>Follow Driver</button>";
            }
          }
          ?>

          <?php if (isset($error_message)) {
            // This code will not echo!
            echo "<h2>".$error_message."</h2>";
          }
          ?>

    <div class="section-b">
     <div class="grid">
      <div class="row">
       <div class="col-wd-12">
        <div class="col">
         <form id="share" name="share" action="profile.php" method="post">
         <textarea id="post" name="user_post" placeholder="What's happening?">    </textarea>
         <span id="errorpost" class="error">You must input something something before sending</span>
         <?php
         echo "<div class='g-recaptcha' data-     sitekey='6LfNTB0TAAAAAKEw9zfnFzvGCXF9MuYTkdB144x1
         '></div>"; ?>
       <button onclick="return postCheckValidate();"        type="submit">Share</button>
     </form>
         </div>
        </div>
       </div>
      </div>
     </div>
<?php } ?>



Any suggestions would be fantastic.

Thanks,
James.
David Bath
David Bath
25,940 Points
David Bath
David Bath
25,940 Points

I can't really explain why it isn't working, but I would check the values of certain variables immediately after they should be getting set. For instance:

if($post == "") {
  $error_message = "Please enter something before submitting";
  echo $error_message;
  exit;
}

I would do something similar inside the block where you check if $error_message is set.

1 Answer

Joe Schultz
Joe Schultz
6,191 Points
Joe Schultz
Joe Schultz
6,191 Points

Try this: php<?php if (!isset($error_message)) { // This code will not echo! echo "<h2>".$error_message."</h2>"; }

Joe Schultz
Joe Schultz
6,191 Points
Joe Schultz
Joe Schultz
6,191 Points

php<?php if (!isset($error_message)) { // This code will not echo! echo "<h2>".$error_message."</h2>"; }