WP Meta Fields

Register meta fields for WordPress theme and plugns. Build for WordPress developers.

Using with Composer

Install Library

If you have not composer.json then initialize it with command composer init.

if you already have the composer.json then use below command to install the package.

composer require maheshwaghmare/wp-meta-fields

How to use?

// Load files.
require_once 'vendor/autoload.php';

// Add meta box "Example Meta Box" for the post type 'post' and 'page'.
mf_add_meta_box( array(
	'id'       => 'example-meta-box',
	'title'    => __( 'Example Meta Box' ),
	'screen'   => array( 'post', 'page' ),
	'context'  => 'normal',
	'priority' => 'default',
	'fields'   => array(
		'prefix-1-text' => array(
			'type'        => 'text',
			'title'       => __( 'Text Field', 'textdomain' ),
			'description' => __( 'Simple text field for demonstration purpose.', 'textdomain' ),
			'hint'        => __( 'This is the Text Field for storing the text data for demonstration purpose.', 'textdomain' ),
			'default'     => '',
		),
	)
));

Here, We have added a one Text Field for page and post types.

Our text field meta key is prefix-1-text.

We can get the meta filed value with shortcode like [mf meta_key="prefix-1-text"]

We can register many other input fields like text, textarea, password, color etc. See Field Types.

Remove package

composer remove maheshwaghmare/wp-meta-fields --update-with-dependencies

How to add into theme/plugin?

1. Download latest zip of framework and unzip into your theme/plugin.
2. Add below code to initialize framework.

require_once 'wp-meta-fields/wp-meta-fields.php';

You can organize your directory structure as per your requirement. Instead of adding framework in root directory of plugin/theme, I'll use the inc directory. To add the framework.

1. Create inc directory in your plugin/theme.
2. Unzip latest release of WP Meta Fields into inc directory.
3. Include it into your plugin/theme by adding below code.

require_once 'inc/wp-meta-fields/wp-meta-fields.php';

NOTE: Make sure you have the latest version wp-meta-fields. Get the latest version from wp-meta-fields

Use sample plugin

To know how to integrate meta field framework into plugin, Use the sample plugin

How to add meta box?

Use function mf_add_meta_box() to register meta box and its meta fields. It contain parameters which are used for WordPress function add_meta_box()

E.g.

Register meta box for post type Post.

mf_add_meta_box( array(
	'id'       => 'example-all-fields',
	'title'    => __( 'Example - All Fields' ),
	'screen'   => array( 'post' ),
	'context'  => 'normal',
	'priority' => 'default',
	'fields'   => array(
		// ..
	)
));

Where,

Parameter	Description
id	(string) (Required) Meta box ID (used in the 'id' attribute for the meta box).
title	(string) (Required) Title of the meta box.
screen	(string
context	(string) (Optional) The context within the screen where the boxes should display. Available contexts vary from screen to screen. Post edit screen contexts include 'normal', 'side', and 'advanced'. Comments screen contexts include 'normal' and 'side'. Menus meta boxes (accordion sections) all use the 'side' context. Global. Default value: 'advanced'
priority	(string) (Optional) The priority within the context where the boxes should show ('high', 'low'). Default value: 'default'

How to add fields?

Register single text field which have a unique meta key prefix-1-text our above registered meta box.

mf_add_meta_box( array(
	'id'       => 'example-meta-box',
	'title'    => __( 'Example Meta Box' ),
	'screen'   => array( 'post' ),
	'context'  => 'normal',
	'priority' => 'default',
	'fields'   => array(
		'prefix-1-text' => array(
			'type'        => 'text',
			'title'       => __( 'Text Field', 'textdomain' ),
			'description' => __( 'Simple text field for demonstration purpose.', 'textdomain' ),
			'hint'        => __( 'This is the Text Field for storing the text data for demonstration purpose.', 'textdomain' ),
			'default'     => '',
		),
	)
));

Here,

Parameter	Description
prefix-1-text	Unique meta key.
type	Field type.
title	Field title.
description	Field description.
hint	Field hint.
default	Field default value.

Above registered field is looks like below screenshot in the post edit window.

How to print/retrieve meta field value.

To retrieve/print the value of our registered field prefix-1-text use:

[mf meta_key='prefix-1-text']

or

mf_meta( 'prefix-1-text' );

or

echo mf_get_meta( 'prefix-1-text' );

---

1. Use shortcode [mf meta_key="META_KEY" post_id="POST_ID"] to print the meta value.

E.g. [mf meta_key='prefix-1-text'] By default it get the current post ID by using function get_the_ID().

OR [mf meta_key='prefix-1-text' post_id='46'] Specific post meta value by passing post ID.

2. Use function mf_meta() to print the meta value.

E.g. <?php mf_meta( 'prefix-1-text' ); ?> By default it get the current post ID by using function get_the_ID().

OR <?php mf_meta( 'prefix-1-text', 46 ); ?> Specific post meta value by passing post ID.

3. Use function mf_get_meta() to retrieve the meta value.

E.g. <?php echo mf_get_meta( 'prefix-1-text' ); ?> By default it get the current post ID by using function get_the_ID().

OR <?php echo mf_get_meta( 'prefix-1-text', 46 ); ?> Specific post meta value by passing post ID. E.g.

Field Types

Now, Framework support below build in HTML5 field support.

• text
• textarea
• password
• color
• date
• datetime-local
• email
• month
• number
• time
• week
• url
• checkbox
• radio
• select

Examples

All Meta Field:

/**
 * Meta Fields (Screen - Normal)
 */
mf_add_meta_box( array(
	'id'       => 'example-all-fields',
	'title'    => __( 'Example - All Fields' ),
	'screen'   => array( 'post' ),
	'context'  => 'normal',
	'priority' => 'default',
	'fields' => array(
		'prefix-1-text' => array(
			'type'        => 'text',
			'title'       => 'Text Field',
			'description' => 'Text Field field description goes here.',
			'hint' => 'Text Field field description goes here.',
			'default'     => '',
		),
		'prefix-1-textarea' => array(
			'type'        => 'textarea',
			'title'       => 'Textarea',
			'description' => 'Textarea field description goes here.',
			'hint' => 'Textarea field description goes here.',
			'default'     => '',
		),
		'prefix-1-password' => array(
			'type'        => 'password',
			'title'       => 'Password',
			'description' => 'Password field description goes here.',
			'hint' => 'Password field description goes here.',
			'default'     => '',
		),
		'prefix-1-color' => array(
			'type'        => 'color',
			'title'       => 'Color',
			'description' => 'Color field description goes here.',
			'hint' => 'Color field description goes here.',
			'default'     => '#f3f3f3',
		),
		'prefix-1-date' => array(
			'type'        => 'date',
			'title'       => 'Date',
			'description' => 'Date field description goes here.',
			'hint' => 'Date field description goes here.',
			'default'     => '',
		),
		'prefix-1-datetime-local' => array(
			'type'        => 'datetime-local',
			'title'       => 'Date Time Local',
			'description' => 'Date Time Local field description goes here.',
			'hint' => 'Date Time Local field description goes here.',
			'default'     => '',
		),
		'prefix-1-email' => array(
			'type'        => 'email',
			'title'       => 'Email',
			'description' => 'Email field description goes here.',
			'hint' => 'Email field description goes here.',
			'default'     => '',
		),
		'prefix-1-month' => array(
			'type'        => 'month',
			'title'       => 'Month',
			'description' => 'Month field description goes here.',
			'hint' => 'Month field description goes here.',
			'default'     => '',
		),
		'prefix-1-number' => array(
			'type'        => 'number',
			'title'       => 'Number',
			'description' => 'Number field description goes here.',
			'hint' => 'Number field description goes here.',
			'default'     => '',
		),
		'prefix-1-time' => array(
			'type'        => 'time',
			'title'       => 'Time',
			'description' => 'Time field description goes here.',
			'hint' => 'Time field description goes here.',
			'default'     => '',
		),
		'prefix-1-week' => array(
			'type'        => 'week',
			'title'       => 'Week',
			'description' => 'Week field description goes here.',
			'hint' => 'Week field description goes here.',
			'default'     => '',
		),
		'prefix-1-url' => array(
			'type'        => 'url',
			'title'       => 'Url',
			'description' => 'Url field description goes here.',
			'hint' => 'Url field description goes here.',
			'default'     => '',
		),
		'prefix-1-checkbox' => array(
			'type'        => 'checkbox',
			'title'       => 'Checkbox',
			'description' => 'Checkbox field description goes here.',
			'hint'        => 'Checkbox field description goes here.',
			'default'     => true,
		),
		'prefix-1-radio' => array(
			'type'        => 'radio',
			'title'       => 'Radio',
			'description' => 'Radio field description goes here.',
			'hint' => 'Radio field description goes here.',
			'default'     => 'one',
			'choices' => array(
				'one'   => 'One',
				'two'   => 'Two',
				'three' => 'Three',
			),
		),
		'prefix-1-select' => array(
			'type'        => 'select',
			'title'       => 'Select',
			'description' => 'Select field description goes here.',
			'hint' => 'Select field description goes here.',
			'default'     => 'one',
			'choices' => array(
				'one'   => 'One',
				'two'   => 'Two',
				'three' => 'Three',
			),
		),
	)
) );

It generate the meta box and meta fields like below screenshot.