my_pmprorh_init_example_fields.php

<?php

/* Sample Register Helper fields

	Register Helper Add On (https://www.paidmembershipspro.com/add-ons/pmpro-register-helper-add-checkout-and-profile-fields/) 

	Add this to your customization plugin for PMPro Customizations: https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/

	or

	Add this to your theme's functions file.
*/

function my_pmprorh_init_example_fields() {
	// don't break if Register Helper is not loaded
	if ( ! function_exists( 'pmprorh_add_registration_field' ) ) {
		return false;
	}
	// define the fields
	$fields = array();

	// TEXT FIELD - Basic Example
	$fields[] = new PMProRH_Field(
		'basic_example', // input field name, used as meta key
		'text',          // field type
		array(
			'label'    => 'Basic Example', // field label
			'profile'  => true,            // display on user profile
			'required' => false,           // optional field
		)
	);

	// TEXT FIELD
	$fields[] = new PMProRH_Field(
		'text_example', // input field name, used as meta key
		'text',         // field type
		array(
			'label'           => 'Text', // display custom label, if not used field name will be used
			'html_attributes' => array( 'placeholder' => 'e.g., Example' ), // add valid html input field attributs
			'hint'            => 'This is a hint', // display a hint under field
			'levels'          => array( 1, 3, 5 ), // levels to display field for
			'class'           => 'css_class_name', // custum class for input field
			'divclass'        => 'css_class_name_for_div', // custom class for container div
			'size'            => 40, // field width
			'profile'         => true, // show on profile
			'memberslistcsv'  => true, // include when using export members to csv
			'addmember'       => true, // include when using add member from admin
			'required'        => true, // make field required
		)
	);

	// TEXTAREA
	$fields[] = new PMProRH_Field(
		'textarea_example', // input field name, used as meta key
		'textarea',         // field type
		array(
			'id'             => 'custom_field_id', // set custom id attribute for field
			'label'          => 'Textarea Example',
			'rows'           => 10, // amount of rows  (height)
			'cols'           => 50, // amount of columns (width)
			'profile'        => true,
			'memberslistcsv' => true,
			'addmember'      => true,
			'required'       => false,
		)
	);

	// SELECT
	$fields[] = new PMProRH_Field(
		'select_example', // input field name, used as meta key
		'select',         // field type
		array(
			'label'          => 'Select',
			'options'        => array(
				''         => '',    // blank option displayed first
				'option_1' => 'Option 1',
				'option_2' => 'Option 2',
				'option_3' => 'Option 3',
			),
			'profile'        => true,
			'memberslistcsv' => true,
			'addmember'      => true,
			'required'       => false,
		)
	);

	// MULTISELECT
	$fields[] = new PMProRH_Field(
		'multiselect_example', // input field name, used as meta key
		'select',              // field type
		array(
			'label'          => 'Multi-select',
			'multiple'       => true, // allow multiple selections for select
			'options'        => array(
				''         => '- select -', // blank option displaying "-select-"
				'option_1' => 'Option 1',
				'option_2' => 'Option 2',
				'option_3' => 'Option 3',
			),
			'profile'        => true,
			'memberslistcsv' => true,
			'addmember'      => true,
			'required'       => false,
		)
	);

	// SELECT2
	$fields[] = new PMProRH_Field(
		'select_2_example', // input field name, used as meta key
		'select2',          // field type
		array(
			'label'          => 'Select 2',
			'options'        => array(
				'option_1' => 'Option 1',
				'option_2' => 'Option 2',
				'option_3' => 'Option 3',
			),
			'profile'        => true,
			'memberslistcsv' => true,
			'addmember'      => true,
			'required'       => false,
		)
	);

	// CHECKBOX
	$fields[] = new PMProRH_Field(
		'checkbox_example',             // input field name, used as meta key
		'checkbox',                    // field type
		array(
			'label'          => 'Checkbox',
			'text'           => 'Check this', // string for <label></label>
			'profile'        => true,
			'memberslistcsv' => true,
			'addmember'      => true,
			'required'       => false,
		)
	);
	// GROUPED CHECKBOX
	$fields[] = new PMProRH_Field(
		'checkbox_grouped_example', // input field name, used as meta key
		'checkbox_grouped',         // field type
		array(
			'label'          => 'Checkbox Grouped',
			'required'       => false, // Should always include this attribute
			'addmember'      => false, // Should always include this attribute
			'memberslistcsv' => false, // Should always include this attribute
			'profile'        => true, // Should always include this attribute
			'options'        => array( // <option> elements for select field
				'option_1' => 'Option 1', // <option value=”option_1”>Option 1</option>
				'option_2' => 'Option 2', // <option value=”option_2”>Option 2</option>
				'option_3' => 'Option 3', // <option value=”option_3”>Option 3</option>
				'option_4' => 'Option 4', // <option value=”option_4”>Option 4</option>
			),
		)
	);
	// RADIO
	$fields[] = new PMProRH_Field(
		'radio_example', // input field name, used as meta key
		'radio',         // field type
		array(
			'label'          => 'Radio',
			'options'        => array(      // display the different options, no need for a "blank" option
				'option_1' => 'Option 1',
				'option_2' => 'Option 2',
				'option_3' => 'Option 3',
			),
			'profile'        => true,
			'memberslistcsv' => true,
			'addmember'      => true,
			'required'       => false,
		)
	);

	// FILE
	$fields[] = new PMProRH_Field(
		'file_upload_example', // input field name, used as meta key
		'file',                // field type
		array(
			'label'   => 'File Upload',
			'accept'  => 'image/*',   // accept all image types for file upload  (http://www.w3schools.com/TAGs/att_input_accept.asp)
			'profile' => true,
		)
	);

	// HTML
	$fields[] = new PMProRH_Field(
		'html_example', // input field name, used as meta key
		'html',         // field type
		array(
			'label'         => 'HTML',
			'html'          => '<p>Add a paragraph into your <u>profile or checkout.php</u> for <b><em>Paid Memberships Pro</em></b>. You may also use normal HTML code to generate fields.</p>',   // accepts HTML code
			'profile'       => true,
			'showmainlabel' => false,
		)
	);

	// HIDDEN
	$fields[] = new PMProRH_Field(
		'hidden_example',
		'hidden',
		array(
			'label'   => 'Hidden',
			'profile' => true,
		)
	);

	// Display a field depending on the value of another field
	// CHECKBOX - Reference field
	$fields[] = new PMProRH_Field(
		'conditional_example_depends_on', // input field name, used as meta key
		'checkbox',                       // field type
		array(
			'label'   => 'Checkbox w. Conditional Depends',
			'text'    => 'Check this to display a text field',
			'profile' => true,
		)
	);

	// Display field depending on value of another field
	// TEXT
	$fields[] = new PMProRH_Field(
		'conditional_example_show', // input field name, used as meta key
		'text',                     // field type
		array(
			'label'   => 'Text w. Show on Condition',
			'depends' => array(
				array(
					'id'    => 'conditional_example_depends_on', // depends on this field
					'value' => true, // if checkbox is checked show this field
				),
			),
			'profile' => true,
		)
	);
	/*
	By default, you can place a new field in one of 8 different locations:

	after_username
	after_password
	after_email
	after_captcha
	checkout_boxes
	after_billing_fields
	before_submit_button
	just_profile – The field will only be shown on the Edit User/Profile pages. To use this, “profile” must be set to either true or admin.
	*/
	foreach ( $fields as $field ) {
		pmprorh_add_registration_field(
			'checkout_boxes', // location on checkout page
			$field            // PMProRH_Field object
		);
	}
	// that's it. see the PMPro Register Helper readme for more information and examples.
}
add_action( 'init', 'my_pmprorh_init_example_fields' );