BRC

add_action("gform_pre_submission_2", "pre_submission_handler");
function pre_submission_handler(&$form_meta) {

    $handle = fopen("pdflog.txt", "a");
    fwrite(
        $handle,
        date('Y-m-d g:ia')." START Pre-submission for: ".$_POST['input_2'].' '.$_POST['input_1']."\n"
    );

    require_once("dompdf/dompdf_config.inc.php");

    fwrite(
        $handle,
        date('Y-m-d g:ia')." DOMPDF Loaded"."\n"
    );

    $field_array = array();

    foreach($form_meta["fields"] as $field) {
        if ( !isset($field['displayOnly']) )
        {
            $field_array[$field["id"]] = array(
                'label' => $field['label'],
                'value' => $_POST["input_" . $field["id"]]
            );
        }
    }

    fwrite(
        $handle,
        date('Y-m-d g:ia')." Fields Filtered"."\n"
    );

    /**
     * Input IDs
     * ---------------------------------
     *
     * Membership Type              21
     * Given Name                    1
     * Family Name                   2
     * Mother's Name                 3
     * Father's Name                 4
     * Nationality                   5
     * Date of Birth                 6
     * Gender                        7
     * Parent's E-mail               8
     * Own E-mail                    9
     * Own Mobile Phone             18
     * Home Phone                   19
     * Parent's Mobile Phone        20
     * Emergency contact Name       13
     * Emergency contact Phone      14
     * Generated PDF                17
     */

    $name_given  = $_POST['input_1'];
    $name_family = $_POST['input_2'];
    $random_key  = random_text('alnum', 6);
    $filename    = "$name_family $name_given $random_key";
    $folder      = 'pdf/member-registration/';

    /**
     * HTML-PDF Template
     */
    $siteurl = get_option('siteurl').'/';

    fwrite(
        $handle,
        date('Y-m-d g:ia')." Load PDF Template"."\n"
    );

    ob_start();
    include( 'pdf/registration-form.php' );
    $pdf_html = ob_get_contents();
    ob_end_clean();

    fwrite(
        $handle,
        date('Y-m-d g:ia')." Template Loaded"."\n"
    );

    fwrite(
        $handle,
        date('Y-m-d g:ia')." Generating PDF"."\n"
    );
    $dompdf = new DOMPDF();
    $dompdf->load_html($pdf_html);
    $dompdf->render();
    $pdf = $dompdf->output();

    fwrite(
        $handle,
        date('Y-m-d g:ia')." PDF Generated"."\n"
    );

    fwrite(
        $handle,
        date('Y-m-d g:ia')." Write to file "."\n"
    );
    do {
        $filename = rename_file($filename).'.pdf';
    } while ( file_exists($folder.$filename) );

    $fp = fopen($folder.$filename, "w");
    fwrite($fp, $pdf);
    fclose($fp);

    fwrite(
        $handle,
        date('Y-m-d g:ia')." File Written"."\n"
    );

    $_POST['input_17'] = get_option('siteurl').'/'.$folder.$filename;

    fwrite(
        $handle,
        date('Y-m-d g:ia')." File: ".$filename."\n"
    );

    fwrite(
        $handle,
        date('Y-m-d g:ia')." CLOSE Pre-submission for: ".$_POST['input_2'].' '.$_POST['input_1']."\n"
    );
    fclose($handle);
}