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Editorial Team
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Asked: 2026-06-09T14:26:13+00:00

Basically, I have an input field in my form that is set in the

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Basically, I have an input field in my form that is set in the CSS to display: none and I was wondering if auto fill programs fill in hidden fields? I set the value of the field to time() on load and compare it to the time the form is submitted to tell if the user is a human or bot.

Here is my code for the hidden field:

<?php

    $loadTime = time(); // Initial time that the page loads is checked against the time the form is submitted and if its too fast, its probably a bot

?>

<input type="text" name="loadTime" id="loadTime" value="<?php echo $loadTime ?>" maxlenght="50" />
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1 Answer

  1. Editorial Team

    Instead of a text input with display:none; you should use <input type="hidden" .../>. Like this auto fill programs won’t modify its value. Another (and safer) option is storing the time value as a server variable so that it can’t be modified

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