Thord Daniel Hedengren - Smashing WordPress_ Beyond the Blog-Wiley (2014)

152 PART II • Designing and Developing WordPress Themes

// Add setting for kihon_footer_copyright

$wp_customize->add_setting( 'kihon_footer_copyright', array(

'default' => '© '. get_bloginfo( 'name' ),

) );

// Add control for kihon_footer_copyright

$wp_customize->add_control( 'kihon_footer_copyright', array(

'label' => 'Text in the footer',

'type' => 'text',

'section' => 'kihon_footer', // Add to section kihon_footer

) );

}

add_action( 'customize_register', 'kihon_theme_settings', 11 );

Are you done now? Well yes, the Footer Details box will indeed show up in the Theme

Customizer, and the data will be saved, but what is the point of such a live preview interface if

the feature isn’t implemented in the theme? With the help of get_theme_mod(), you’ll

output the data. This little code snippet in footer.php will output whatever text is saved in the

settings, and if no text is added, the default value (from where you added the setting) will be

there instead:

<?php echo get_theme_mod( 'kihon_footer_copyright' ); ?>

With get_theme_mod(), you can easily pick up whatever setting you have created by

passing the setting ID.

Now, you’re halfway there. There’s the box, and there’s the live preview of whatever copy you

put into the text field.

Let’s add another setting for the credit line below the copy. For this, you don’t need to create

the section again; you can just use the one you’ve got. Yes, this means that you can add

settings to any section, including the ones that are already available.

// Add setting for kihon_footer_credits

$wp_customize->add_setting( 'kihon_footer_credits', array(

'default' => 0,

) );

This setting is called kihon_footer_credits, and the default value is nil. That’s because

you’re going to make this one a check box — either you want to credit line with links to the

theme home page and WordPress.org or you don’t. Here’s the control that’ll make it all come

true:

// Add control for kihon_footer_credits

$wp_customize->add_control( 'kihon_footer_credits', array(

'label' => 'Hide credits from the footer',

'type' => 'checkbox',

'section' => 'kihon_footer', // Add to section kihon_footer

) );