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POBlank input field gives previous default value in $_POST
 

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    <p>I am new here so hope I am respecting the protocol ;-)</p> <p>Here's a simple issue that for some reason I cannot solve.</p> <p>I have a form with post action calling a php file, and several text input fields with default values set. Example:</p> <pre><code>&lt;form class="form-horizontal" method="post" action="profile.php"&gt; &lt;input type="text" class="input-xlarge" id="q-2-Address" name="q-2-Address" value="Park Avenue"&gt; &lt;button type="submit" class="btn btn-primary"&gt;Save changes&lt;/button&gt; &lt;/form&gt; </code></pre> <p>If I submit the form leaving the default value unchanged, <code>$_POST['q-2-Address']</code> contains the default "Park Avenue" as expected.</p> <p>If I try to change the value in the input text field (ex: to "Madison Avenue") I can see the result in <code>$_POST['q-2-Address']</code> which gets set to "Madison Avenue", as expected.</p> <p>But if I try to clear the value by removing all text, the <code>$_POST['q-2-Address']</code> is NOT blank and in fact goes back to containing the default value set initially "Park Avenue".</p> <p>So if I want to update a form by replacing previously filled fields with blanks, this seems to be impossible, nor is it possible to detect that the field has been cleared. I tried testing using empty() but of course it gives a false result, <code>$_POST</code> contains the default value so is not empty even though the text field is empty.</p> <p>Short of my entering something like a single space, I see no way of actually clearing a field.</p> <p>It is a trivial thing but maybe somebody knows more about this.</p> <p>TIA</p> <p>Mike</p>
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    1. USjcjr
    1. USMike Tommasi
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    1. COpost your php code
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      1. USMuthu Kumaran
    2. CO@Muthu, for now imagine the code is simply: <?php echo $_POST['q-2-Address'] ?> ....... when the default value is replaced by nothing (cleared) the POST variable still shows the default value
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      1. USMike Tommasi
    3. COOK figured it out. Thanks for helping. The example above actually does show a blank. I had some verification routines that were screwing up the values. My fault!
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      1. USMike Tommasi
 

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