Adding a section with control to the Customizer

socialcustomizersection.php

function my_add_customizer_sections( $wp_customize ) {

	$social_sites = ct_tribes_social_array();

	// set a priority used to order the social sites
	$priority = 5;

	// section
	$wp_customize->add_section( 'ct_tribes_social_media_icons', array(
		'title'       => __( 'Social Media Icons', 'tribes' ),
		'priority'    => 25,
		'description' => __( 'Add the URL for each of your social profiles.', 'tribes' )
	) );

	// create a setting and control for each social site
	foreach ( $social_sites as $social_site => $value ) {

		$label = ucfirst( $social_site );

		if ( $social_site == 'google-plus' ) {
			$label = 'Google Plus';
		} elseif ( $social_site == 'rss' ) {
			$label = 'RSS';
		} elseif ( $social_site == 'soundcloud' ) {
			$label = 'SoundCloud';
		} elseif ( $social_site == 'slideshare' ) {
			$label = 'SlideShare';
		} elseif ( $social_site == 'codepen' ) {
			$label = 'CodePen';
		} elseif ( $social_site == 'stumbleupon' ) {
			$label = 'StumbleUpon';
		} elseif ( $social_site == 'deviantart' ) {
			$label = 'DeviantArt';
		} elseif ( $social_site == 'hacker-news' ) {
			$label = 'Hacker News';
		} elseif ( $social_site == 'whatsapp' ) {
			$label = 'WhatsApp';
		} elseif ( $social_site == 'qq' ) {
			$label = 'QQ';
		} elseif ( $social_site == 'vk' ) {
			$label = 'VK';
		} elseif ( $social_site == 'wechat' ) {
				$label = 'WeChat';
		} elseif ( $social_site == 'tencent-weibo' ) {
			$label = 'Tencent Weibo';
		} elseif ( $social_site == 'paypal' ) {
			$label = 'PayPal';
		} elseif ( $social_site == 'email-form' ) {
			$label = 'Contact Form';
		}
		// setting
		$wp_customize->add_setting( $social_site, array(
			'sanitize_callback' => 'esc_url_raw'
		) );
		// control
		$wp_customize->add_control( $social_site, array(
			'type'     => 'url',
			'label'    => $label,
			'section'  => 'ct_tribes_social_media_icons',
			'priority' => $priority
		) );
		// increment the priority for next site
		$priority = $priority + 5;
	}
}
add_action( 'customize_register', 'my_add_customizer_sections' );