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POVariable being unset during new page load
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copied!<p>I have a registration form on a website, the registration calls a function which accepts the $_POST values as arguments. While going through the usual checks, if an error is found it uses a function in the error message class which sets the error, and also increments the errorcounter variable. This function accepts two arguments: the field and the error message (stored in an array).</p> <pre><code> $errmsg->setError("firstname", "You must enter your name"); </code></pre> <p>setError() sets the error:</p> <pre><code> function setError($field, $errMsg){ $this->errors[$field] = $errMsg; } </code></pre> <p>The register function checks to see if the error counter has been increased, if not it registers the account, if yes then it redirects back to the register page. </p> <p>The register page uses a function in the errmsg class to show any errors:</p> <pre><code> $errmsg->showError("firstname"); // Argument being the field name. </code></pre> <p>This function should display any error messages that have been set:</p> <pre><code> function showError($field) { if (isset($this->errors[$field])) { return $this->errors[$field]; } else { return ""; } } </code></pre> <p>So, you can see if the array has the index defined it should display the value, if not, display nothing.</p> <p>The problem I'm having is that nothing is being displayed even when there is an error.</p> <p>I've tried echoing out $errmsg->errors['firstname']; in the register function if the error counter is > 0, and it displays the correct message. So I know the array key is being set, also if I change the else statement to return a string if the array key doesn't exist it also works fine. So for some reason the value is being set, then lost again once the page reloads. </p> <p>I also tried creating a function in the error message class to return the array which can be called by the register function when errors have been found:</p> <pre><code> function getErrorArray(){ return $this->errors; } </code></pre> <p>This also did nothing. To be 100% certain the array key exists at the time of running the register function I tried this:</p> <pre><code> if ($errors > 0) { if(isset($errmsg->errors['firstname'])) { header("Location: ".$session->referrer); } else { header("Location: http://www.google.com"); } </code></pre> <p>As expected, if there is an error (the error I'm working on here is an empty string) it redirects back and should show the message and when the field contained a value it redirected to Google.</p> <p>I've also tried using:</p> <pre><code> if(array_key_exists($field,$this->errors)) </code></pre> <p>instead of:</p> <pre><code> if(isset($errmsg->errors['firstname'])) </code></pre> <p>I really don't understand why this isn't working, is it a scope issue? Should I maybe be storing this in $_SESSION? Any pointers would be greatly appreciated. Thanks.</p>

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