WordPress Meta Fields Builder

A robust, flexible, and easy-to-use PHP library to quickly create, register, and reuse meta fields and meta boxes configurations, and keep them in your source code repository.

Install

Use composer to install:

composer require ivanyankov/meta-fields-builder

If your project isn't using composer, you can require the autoload.php file.

Available Fields

Field	Class	Description
Text	TextField	Single-line text input
Textarea	TextareaField	Multi-line text input with configurable rows
URL	URLField	URL input with validation
Number	NumberField	Numeric input with min, max and step constraints
Select	SelectField	Dropdown from key-value option pairs
Checkbox	CheckboxField	Single on/off toggle
Image	ImageField	WordPress media library uploader (stores attachment ID)

Usage

This should give you a comprehensive view of how to create meta boxes with fields, where you can specify not only the fields themselves but also where these meta boxes should appear.

Simple Example

use Yankov\MetaFieldsBuilder\MetaBox\MetaBoxBuilder;
use Yankov\MetaFieldsBuilder\Fields\TextField;

$fields = [
    new TextField('text_field_name', 'Text Field')
];

$metaBox = MetaBoxBuilder::make('custom_meta_box_id', 'Advanced Custom Meta Box', $fields, 'post');

Using Multiple Field Types

use Yankov\MetaFieldsBuilder\MetaBox\MetaBoxBuilder;
use Yankov\MetaFieldsBuilder\Fields\TextField;
use Yankov\MetaFieldsBuilder\Fields\TextareaField;
use Yankov\MetaFieldsBuilder\Fields\URLField;
use Yankov\MetaFieldsBuilder\Fields\NumberField;
use Yankov\MetaFieldsBuilder\Fields\SelectField;
use Yankov\MetaFieldsBuilder\Fields\CheckboxField;
use Yankov\MetaFieldsBuilder\Fields\ImageField;

$fields = [
    new TextField('company_name', 'Company Name'),
    new TextareaField('description', 'Description', rows: 6),
    new URLField('website', 'Website URL'),
    new NumberField('rating', 'Rating', min: 0, max: 5, step: 0.1),
    new SelectField('status', 'Status', [
        'active'   => 'Active',
        'inactive' => 'Inactive',
    ]),
    new CheckboxField('featured', 'Featured'),
    new ImageField('logo', 'Logo'),
];

$metaBox = MetaBoxBuilder::make('company_details', 'Company Details', $fields, 'post');

Restricting to a Specific Page

$metaBox = MetaBoxBuilder::make('page_settings', 'Page Settings', $fields, 'page', $page_id);

Retrieving Data

Get the saved data by calling the WordPress get_post_meta function:

$field_value = get_post_meta($post_id, 'text_field_name', true);