Removes the First Name, Last Name, and Display Name fields on the Member Profile Edit page.

hide-first-last-display-name-on-user-profile-page.php

<?php
/**
 * This recipe removes the First Name, Last Name, and Display Name fields on the Member Profile Edit page.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function my_pmpro_member_profile_edit_unset_user_object_fields( $user_fields ) {
	unset( $user_fields['first_name'] );
	unset( $user_fields['last_name'] );
	unset( $user_fields['display_name'] );
	// unset( $user_fields['user_email'] ); // uncomment to also remove the email address
	return $user_fields;
}
add_filter( 'pmpro_member_profile_edit_user_object_fields', 'my_pmpro_member_profile_edit_unset_user_object_fields' );

function my_pmpro_user_profile_update_errors_skip_errors( &$errors, $update = null, &$user = null ) {

	// Let's check which user fields are set.
	$user_fields = apply_filters(
		'pmpro_member_profile_edit_user_object_fields',
		array(
			'first_name'   => __( 'First Name', 'paid-memberships-pro' ),
			'last_name'    => __( 'Last Name', 'paid-memberships-pro' ),
			'display_name' => __( 'Display name publicly as', 'paid-memberships-pro' ),
			'user_email'   => __( 'Email', 'paid-memberships-pro' ),
		)
	);

	// array of default error messages that we might need to check for.
	$error_messages = array(
		'display_name' => __( 'Please enter a display name.', 'paid-memberships-pro' ),
		'user_email'   => __( 'Please enter an email address.', 'paid-memberships-pro' ),
	);

	// Only keep the error messages for the user fields that are set.
	foreach ( $user_fields as $key => $field ) {
		if ( array_key_exists( $key, $user_fields ) ) {
			unset( $error_messages[ $key ] );
		}
	}

	// Remove the error messages from the errors array.
	foreach ( $errors as $key => $error ) {
		if ( in_array( $error, $error_messages ) ) {
			unset( $errors[ $key ] );
		}
	}
}
add_action( 'pmpro_user_profile_update_errors', 'my_pmpro_user_profile_update_errors_skip_errors', 10, 3 );