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August 4, 2023 16:22
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For Paid Memberships Pro - Adjusts the cost of a level at checkout based on the selection of a custom user field for upselling additional options to a plan, accounts for recurring plans, and adjust the cost based on if it's a monthly or annual plan (fixes and expands on the code snippet at https://www.paidmembershipspro.com/multiple-membership-l…
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<?php | |
function my_pmpro_adjustable_level_cost($level) | |
{ | |
// Specify the monthly and annual levels | |
$monthly_levels = array(1, 2); | |
$annual_levels = array(3, 4); | |
// Set the field name here | |
$field_name = 'field_name'; | |
// Set the available field options and their monthly and annual fees | |
$options = array( | |
'option1' => array('monthly_fee' => 10, 'annual_fee' => 100), | |
'option2' => array('monthly_fee' => 20, 'annual_fee' => 200), | |
'option3' => array('monthly_fee' => 30, 'annual_fee' => 300) | |
); | |
// Stop editing. Enjoy! | |
$extra_fee = 0; // Default additional fee | |
if (!empty($_REQUEST[$field_name]) && isset($options[$_REQUEST[$field_name]])) { | |
$option_values = $options[$_REQUEST[$field_name]]; | |
if (in_array($level->id, $monthly_levels)) { | |
$extra_fee = $option_values['monthly_fee']; | |
} elseif (in_array($level->id, $annual_levels)) { | |
$extra_fee = $option_values['annual_fee']; | |
} | |
// Check if there is an extra fee | |
if ($extra_fee > 0) { | |
// Check if the level has a recurring subscription | |
if (pmpro_isLevelRecurring($level)) { | |
// Apply the additional fee for recurring plans | |
$level->initial_payment = $level->initial_payment + $extra_fee; | |
$level->billing_amount = $level->billing_amount + $extra_fee; | |
} else { | |
// Apply the additional fee for one-time payment plans | |
$level->initial_payment = $level->initial_payment + $extra_fee; | |
} | |
} | |
} | |
return $level; | |
} | |
add_filter("pmpro_checkout_level", "my_pmpro_adjustable_level_cost"); | |
?> |
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There are a couple of housekeeping items to ensure you are displaying accurate information to your users. In Memberships > Settings > Email Templates, select the email template “Checkout - Paid,” and “Checkout - Paid (admin)” and remove the following line:
<p>Membership Fee: !!membership_cost!!</p>
That line not only displays the initial cost of the membership plan and not the updated membership plan with the options, but the way that it is phrased: “Membership Fee: The price for membership is $x now, and $x every Month” may confuse users who did not purchase a renewable plan (I have contacted PMPro about this).Finally, if you have the Auto-Renewal Checkbox addon, the checkbox label includes a code-generated calculation of the plan cost. This is also no longer accurate once our custom code is implemented. To update the calculation based on the selected options would require Ajax to handle the checkbox toggle event and a server-side request to calculate and return the calculation, as well as significant modifications to our custom code. That is beyond the scope of this tutorial. Instead, let’s just replace the label of the checkbox with the static text, “Renew your plan” using jquery. Place this code in your child theme’s functions.php file: