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POPHP - Incorrect POST data being sent through a form upon echo?
 

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  1. POPHP - Incorrect POST data being sent through a form upon echo?
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    <p>I'm writing a simple registration form to add users to a database. The code is below.</p> <pre><code>&lt;?php include 'header.php'; $tag = randomString(); ?&gt; &lt;html&gt; &lt;head&gt; &lt;title&gt;Register an Account&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;b&gt;Register an account&lt;/b&gt;&lt;br&gt;&lt;br&gt; &lt;form method="post" action="add_user.php?tag=&lt;?echo $tag;?&gt;"&gt; Username: &lt;br&gt;&lt;input type="text" name="username" size=25/&gt;&lt;br /&gt;&lt;br&gt; Password: &lt;br&gt;&lt;input type="password" name="password" size=25/&gt;&lt;br /&gt;&lt;br&gt; Confirm Password: &lt;br&gt;&lt;input type="password" name="confirm" size=25/&gt;&lt;br /&gt;&lt;br&gt; Email Address: &lt;br&gt;&lt;input type="text" name="email" size=25/&gt;&lt;br /&gt;&lt;br&gt;&lt;br&gt; Additional Info: &lt;br&gt;&lt;input type="text" name="info" size=50/&gt;&lt;br&gt; &lt;input type="submit" name="Submit" /&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>The form seems to work fine. However, when I attempt to read this post data on the next page, some entries are correct, and others are not, even when all entries are filled. For example:</p> <pre><code>echo mysql_real_escape_string(htmlentities($_POST['username'])); --&gt; outputs what was in the info field echo mysql_real_escape_string(htmlentities($_POST['password'])); --&gt; output is what was entered in "confirm" echo mysql_real_escape_string(htmlentities($_POST['confirm'])); --&gt; no output echo mysql_real_escape_string(htmlentities($_POST['email'])); --&gt; email is outputted, this is correct. echo mysql_real_escape_string(htmlentities($_POST['info'])); --&gt; No output. </code></pre> <p>Very confused as to why this is happening, I've written many forms with no such problems.</p> <p>EDIT: Here's the var_dump (data entered: username, Pass1, Pass2, email@address.com, and info in the proper order):</p> <pre><code>array(4) { ["username"]=&gt; string(4) "info" ["password"]=&gt; string(5) "Pass2" ["email"]=&gt; string(17) "email@address.com" ["Submit"]=&gt; string(6) "Submit" } </code></pre> <p>EDIT2: Added entire page's code</p> <p><b>add_user.php</b> (Not finished-- the issue came up when I was trying to compare the two passwords. That never evaluated as true, mainly because I wasn't comparing what I thought I was)</p> <pre><code>&lt;?php //var_dump($_POST); echo mysql_real_escape_string(htmlentities($_POST['username'])); echo "&lt;br&gt;"; echo mysql_real_escape_string(htmlentities($_POST['password'])); echo "&lt;br&gt;"; echo mysql_real_escape_string(htmlentities($_POST['confirm'])); echo "&lt;br&gt;"; echo mysql_real_escape_string(htmlentities($_POST['email'])); echo "&lt;br&gt;"; echo mysql_real_escape_string(htmlentities($_POST['info'])); echo "&lt;br&gt;"; if ($_POST['password'] != $_POST['confirm']) { die("Passwords do not match. Please go back and try again."); } $tag = $_GET['tag']; ?&gt; </code></pre>
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      1. POPHP - Incorrect POST data being sent through a form upon echo?
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    1. COWhat about a simple `var_dump($_POST)` for testing?
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      1. POPHP - Incorrect POST data being sent through a form upon echo?
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    2. COThis is interesting. `mysql_real_escape_string` shouldn't output anything. Neither should `htmlentities`.
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      1. POPHP - Incorrect POST data being sent through a form upon echo?
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    3. COAdded the var_dump. And just to clarify, those statements are all echoed, but when I pasted the code here, I forgot the echo statements.
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