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robtuley/stateful-textcaptcha-response.php

Created December 30, 2014 17:40
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stateful-textcaptcha-response.php
<?php
session_start();
$ans = $_POST['captcha']; // .. or whatever!
$checksum = md5(strtolower(trim($ans)));
if (in_array($checksum,$_SESSION['captcha_ans'])) {
// passed..!
} else {
// error: redisplay form, etc.
}
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