When validating form input, create a unique key and value pair with an associated error message. If, after evaluating all the input, the error array isn’t empty, iterate over the array and print the errors.
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<?php /* Checking Form Data & Error Messages http://www.beliefmedia.com/code/php-snippets/soft-break */ /* Create array to store error values */ $arrErrors = array(); /* Error checking */ if (ereg('[^a-zA-Z]', $fn)) $arrErrors['fne'] = 'First name can contain letters only.'; if ($fnl < 2) ) $arrErrors['fnl'] = 'First name must be more than two characters.'; /* If errors... */ if (count($arrErrors) != 0) { /* Add error text to an error string of text */ $strError = '<strong>Please correct the following errors:</strong><ul>'; /* Get each error and add it to the error string as a list item */ foreach ($arrErrors as $error) { $strError .= '<li>' . $error . '</li>'; } $strError .= '</ul>'; /* Output error to screen */ echo '<ul>' . $strError . '</ul>; } ?> |
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