Custom Registraion Form

function wooc_extra_register_fields() {?>

       <p class="form-row form-row-wide">

       <label for="reg_billing_phone"><?php _e( 'Phone', 'woocommerce' ); ?></label>

       <input type="text" class="input-text" name="billing_phone" id="reg_billing_phone" value="<?php esc_attr_e( $_POST['billing_phone'] ); ?>" />

       </p>

       <p class="form-row form-row-first">

       <label for="reg_billing_first_name"><?php _e( 'First name', 'woocommerce' ); ?><span class="required">*</span></label>

       <input type="text" class="input-text" name="billing_first_name" id="reg_billing_first_name" value="<?php if ( ! empty( $_POST['billing_first_name'] ) ) esc_attr_e( $_POST['billing_first_name'] ); ?>" />

       </p>

       <p class="form-row form-row-last">

       <label for="reg_billing_last_name"><?php _e( 'Last name', 'woocommerce' ); ?><span class="required">*</span></label>

       <input type="text" class="input-text" name="billing_last_name" id="reg_billing_last_name" value="<?php if ( ! empty( $_POST['billing_last_name'] ) ) esc_attr_e( $_POST['billing_last_name'] ); ?>" />

       </p>

       <div class="clear"></div>

       <?php

 }

 add_action( 'woocommerce_register_form_start', 'wooc_extra_register_fields' );

/**

* register fields Validating.

*/

function wooc_validate_extra_register_fields( $username, $email, $validation_errors ) {

      if ( isset( $_POST['billing_first_name'] ) && empty( $_POST['billing_first_name'] ) ) {

             $validation_errors->add( 'billing_first_name_error', __( '<strong>Error</strong>: First name is required!', 'woocommerce' ) );

      }

      if ( isset( $_POST['billing_last_name'] ) && empty( $_POST['billing_last_name'] ) ) {

             $validation_errors->add( 'billing_last_name_error', __( '<strong>Error</strong>: Last name is required!.', 'woocommerce' ) );

      }
         return $validation_errors;
}

add_action( 'woocommerce_register_post', 'wooc_validate_extra_register_fields', 10, 3 );

/**

* Below code save extra fields.

*/

function wooc_save_extra_register_fields( $customer_id ) {

    if ( isset( $_POST['billing_phone'] ) ) {

                 // Phone input filed which is used in WooCommerce

                 update_user_meta( $customer_id, 'billing_phone', sanitize_text_field( $_POST['billing_phone'] ) );

          }

      if ( isset( $_POST['billing_first_name'] ) ) {

             //First name field which is by default

             update_user_meta( $customer_id, 'first_name', sanitize_text_field( $_POST['billing_first_name'] ) );

             // First name field which is used in WooCommerce

             update_user_meta( $customer_id, 'billing_first_name', sanitize_text_field( $_POST['billing_first_name'] ) );

      }

      if ( isset( $_POST['billing_last_name'] ) ) {

             // Last name field which is by default

             update_user_meta( $customer_id, 'last_name', sanitize_text_field( $_POST['billing_last_name'] ) );

             // Last name field which is used in WooCommerce

             update_user_meta( $customer_id, 'billing_last_name', sanitize_text_field( $_POST['billing_last_name'] ) );

      }

}

add_action( 'woocommerce_created_customer', 'wooc_save_extra_register_fields' );

function woocommerce_edit_my_account_page() {

    return apply_filters( 'woocommerce_forms_field', array(

        'woocommerce_my_account_page' => array(

            'type'        => 'text',

            'label'       => __( 'Socail Media Profile Link', ' cloudways' ),

            'placeholder' => __( 'Profile Link', 'cloudways' ),

            'required'    => false,

        ),

    ) );

}

function edit_my_account_page_woocommerce() {

    $fields = woocommerce_edit_my_account_page();

    foreach ( $fields as $key => $field_args ) {

        woocommerce_form_field( $key, $field_args );

    }

}

add_action( 'woocommerce_register_form', 'edit_my_account_page_woocommerce', 15 );