Como faço para adicionar um campo no perfil dos usuários?Por exemplo, país, idade etc

Vocêprecisa usar o show_user_profile,edit_user_profile,personal_options_updatee edit_user_profile_updateganchos.

Vocêpode usar o seguinte códigopara adicionar campos adicionaisna seção do usuário

códigopara adicionar camposextrasna seção Editar usuário:

 add_action( 'show_user_profile', 'extra_user_profile_fields' );
add_action( 'edit_user_profile', 'extra_user_profile_fields' );

function extra_user_profile_fields( $user ) { ?>
    <h3><?php _e("Extra profile information", "blank"); ?></h3>

    <table class="form-table">
    <tr>
        <th><label for="address"><?php _e("Address"); ?></label></th>
        <td>
            <input type="text" name="address" id="address" value="<?php echo esc_attr( get_the_author_meta( 'address', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your address."); ?></span>
        </td>
    </tr>
    <tr>
        <th><label for="city"><?php _e("City"); ?></label></th>
        <td>
            <input type="text" name="city" id="city" value="<?php echo esc_attr( get_the_author_meta( 'city', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your city."); ?></span>
        </td>
    </tr>
    <tr>
    <th><label for="postalcode"><?php _e("Postal Code"); ?></label></th>
        <td>
            <input type="text" name="postalcode" id="postalcode" value="<?php echo esc_attr( get_the_author_meta( 'postalcode', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your postal code."); ?></span>
        </td>
    </tr>
    </table>
<?php }
 

códigopara salvar os detalhes de camposextrasnobanco de dados :

 add_action( 'personal_options_update', 'save_extra_user_profile_fields' );
add_action( 'edit_user_profile_update', 'save_extra_user_profile_fields' );

function save_extra_user_profile_fields( $user_id ) {
    if ( !current_user_can( 'edit_user', $user_id ) ) { 
        return false; 
    }
    update_user_meta( $user_id, 'address', $_POST['address'] );
    update_user_meta( $user_id, 'city', $_POST['city'] );
    update_user_meta( $user_id, 'postalcode', $_POST['postalcode'] );
}
 

Existemtambém váriaspostagens deblog disponíveis sobre o assunto quepodem ser úteis:

• Adicionandoe usando Perfil de Usuário Personalizado campos
• Adicionando camposextras aoperfil do usuário do WordPress

You need to use the show_user_profile, edit_user_profile, personal_options_update, and edit_user_profile_update hooks.

You can use the following code for adding additional fields in User section

Code for adding extra fields in Edit User Section:

add_action( 'show_user_profile', 'extra_user_profile_fields' );
add_action( 'edit_user_profile', 'extra_user_profile_fields' );

function extra_user_profile_fields( $user ) { ?>
    <h3><?php _e("Extra profile information", "blank"); ?></h3>

    <table class="form-table">
    <tr>
        <th><label for="address"><?php _e("Address"); ?></label></th>
        <td>
            <input type="text" name="address" id="address" value="<?php echo esc_attr( get_the_author_meta( 'address', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your address."); ?></span>
        </td>
    </tr>
    <tr>
        <th><label for="city"><?php _e("City"); ?></label></th>
        <td>
            <input type="text" name="city" id="city" value="<?php echo esc_attr( get_the_author_meta( 'city', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your city."); ?></span>
        </td>
    </tr>
    <tr>
    <th><label for="postalcode"><?php _e("Postal Code"); ?></label></th>
        <td>
            <input type="text" name="postalcode" id="postalcode" value="<?php echo esc_attr( get_the_author_meta( 'postalcode', $user->ID ) ); ?>" class="regular-text" /><br />
            <span class="description"><?php _e("Please enter your postal code."); ?></span>
        </td>
    </tr>
    </table>
<?php }

Code for saving extra fields details in database:

add_action( 'personal_options_update', 'save_extra_user_profile_fields' );
add_action( 'edit_user_profile_update', 'save_extra_user_profile_fields' );

function save_extra_user_profile_fields( $user_id ) {
    if ( !current_user_can( 'edit_user', $user_id ) ) { 
        return false; 
    }
    update_user_meta( $user_id, 'address', $_POST['address'] );
    update_user_meta( $user_id, 'city', $_POST['city'] );
    update_user_meta( $user_id, 'postalcode', $_POST['postalcode'] );
}

There are also several blog posts available on the subject that might be helpful:

• Adding and using custom user profile fields
• Adding Extra Fields to the WordPress User Profile

o avançado campospersonalizadospro pluginpermitirá que você adicione campos aosperfis do usuário sem qualquer codificação.

The Advanced Custom Fields Pro plugin will allow you to add fields to user profiles without any coding.

Émelhor você usar get_user_meta (em vez de get_the_author_meta ):

 function extra_user_profile_fields( $user ) {
    $meta = get_user_meta($user->ID, 'meta_key_name', false);
}
 

You'd better use get_user_meta (instead of get_the_author_meta):

function extra_user_profile_fields( $user ) {
    $meta = get_user_meta($user->ID, 'meta_key_name', false);
}