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Gravity Wiz // Split Testing with Gravity Forms
<?php
# Function Template
if( function_exists( 'gw_split_testing' ) ) {
echo gw_split_testing()->get_split_test_form( $form_ids, $attributes );
}
# Basic Function Usage
if( function_exists( 'gw_split_testing' ) ) {
echo gw_split_testing()->get_split_test_form( array( 1, 2, ) );
}
# Advanced Function Usage
if( function_exists( 'gw_split_testing' ) ) {
echo gw_split_testing()->get_split_test_form(
array( 1, 2, ),
array(
'title' => 'true',
'description' => 'false',
'ajax' => 'true'
)
);
}
<?php
/**
* Gravity Wiz // Split Testing for Gravity Forms
*
* Allows you to test the effectiveness of two or more Gravity Forms by using a single shortcode (or function call) to
* randomly alternating which form is displayed. Effectiveness can be measured by the "Conversion" column available
* by default on the Gravity Forms' "Forms" list view.
*
* Based on https://gist.github.com/fatmedia/8289103 by @realFATmedia via @mattreport
*
* @version 1.0
* @author David Smith <david@gravitywiz.com>
* @license GPL-2.0+
* @link http://gravitywiz.com/simple-split-testing-gravity-forms/
* @copyright 2013 Gravity Wiz
*/
class GW_Split_Testing {
protected static $instance = null;
public static function get_instance() {
if( null == self::$instance )
self::$instance = new self;
return self::$instance;
}
private function __construct() {
add_filter( 'gform_shortcode_split_test', array( $this, 'do_split_test_shortcode' ), 10, 2 );
}
public function do_split_test_shortcode( $output, $atts ) {
// get our "random" form ID from the provided form IDs
$form_ids = array_map( 'trim', explode( ',', $atts['ids'] ) );
return $this->get_split_test_form( $form_ids, $atts );
}
public function get_split_test_form( $form_ids = array(), $atts = array() ) {
if( empty( $form_ids ) )
return;
if( rgpost( 'gform_submit' ) && in_array( rgpost( 'gform_submit' ), $form_ids ) ) {
$form_id = rgpost( 'gform_submit' );
} else {
$index = mt_rand( 0, count( $form_ids ) - 1 );
$form_id = $form_ids[$index];
}
// modify attributes to create form-generating shortcode
$atts['action'] = 'form';
$atts['id'] = $form_id;
// generate [gravityform] form shortcode
$shortcode_bits = array();
foreach( $atts as $key => $value ) {
if( is_array( $value ) )
$value = implode( ',', $value );
if( $value === true )
$value = 'true';
if( $value === false )
$value = 'false';
$shortcode_bits[] = "{$key}=\"$value\"";
}
$shortcode = '[gravityform ' . implode( ' ', $shortcode_bits ) . ' /]';
// get the form markup by processing the generated shortcode
$form_markup = do_shortcode( $shortcode );
return $form_markup;
}
}
function gw_split_testing() {
return GW_Split_Testing::get_instance();
}
gw_split_testing();
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