By default, WordPress will remove any HTMl from the user bio field on the edit user/profile screen.
It’s very easy to stop WordPress from doing this
remove_filter( 'pre_user_description', 'wp_filter_kses' );
However, you probably don’t want to leave it at that, as users could then add any code (iframes, scripts, etc.) and it wouldn’t be removed.
add_filter( 'pre_user_description', 'wp_filter_post_kses' );
<?php
add_action( 'register_form', 'additional_profile_fields' );
function additional_profile_fields() { ?>
<p>
<label><?php _e('First Name') ?><br />
<input type="text" name="first_name" id="first_name" class="input" size="25" tabindex="20" /></label>
</p>
<p>
<label><?php _e('Last Name') ?><br />
<input type="text" name="last_name" id="last_name" class="input" size="25" tabindex="20" /></label>
</p>
<?php }
add_action( 'register_post', 'add_register_field_validate_first_name', 10, 3 );
function add_register_field_validate_first_name( $sanitized_user_login, $user_email, $errors) {
if (!isset($_POST[ 'first_name' ]) || empty($_POST[ 'first_name' ])) {
return $errors->add( 'firstnameempty', '<strong>ERROR</strong>: Please provide a first name.' );
}
}
add_action( 'register_post', 'add_register_field_validate_last_name', 10, 3 );
function add_register_field_validate_last_name( $sanitized_user_login, $user_email, $errors) {
if (!isset($_POST[ 'last_name' ]) || empty($_POST[ 'last_name' ])) {
return $errors->add( 'lastnameempty', '<strong>ERROR</strong>: Please provide a last name.' );
}
}
add_action( 'user_register', 'insert_register_fields' );
function insert_register_fields( $user_id ) {
$first_name = apply_filters('pre_user_first_name', $_POST['first_name']);
$last_name = apply_filters('pre_user_last_name', $_POST['last_name']);
update_user_meta( $user_id, 'first_name', $first_name );
update_user_meta( $user_id, 'last_name', $last_name );
}Are the built in profile fields not as extensive as you’d like? That can be fixed! The following code will add a field (“greeting”) to the “Personal Options” section as well as another (“phone number”) to the “Contact Info” section. Of course, neither of those would be useful if the data wasn’t saved, so that’s in the code too.
add_action( 'personal_options_update', 'save_custom_profile_fields' );
add_action( 'edit_user_profile_update', 'save_custom_profile_fields' );
function save_custom_profile_fields( $user_id ) {
update_user_meta( $user_id, 'phone_number', $_POST['phone_number'], get_user_meta( $user_id, 'phone_number', true ) );
update_user_meta( $user_id, 'greeting', $_POST['greeting'], get_user_meta( $user_id, 'greeting', true ) );
}
add_filter( 'user_contactmethods', 'add_contact_option', 10, 2 );
function add_contact_option( $user_contactmethods, $user ) {
$user_contactmethods['phone_number'] = 'Phone Number';
return $user_contactmethods;
}
add_action( 'personal_options', 'add_profile_options');
function add_profile_options( $profileuser ) {
$greeting = get_user_meta($profileuser->ID, 'greeting', true);
?><tr>
<th scope="row">Greeting</th>
<td><input type="text" name="greeting" value="<?php echo $greeting; ?>" /></td>
</tr><?php
}
Need to declutter the profile options by removing the various IM fields. It’s easy
add_filter('user_contactmethods', 'remove_im_options', 10, 2);
function remove_im_options( $user_contactmethods, $user ) {
unset($user_contactmethods['aim']);
unset($user_contactmethods['yim']);
unset($user_contactmethods['jabber']);
//$user_contactmethods = array();
return $user_contactmethods;
}