custom logo

functions.php

<?php
	// Add theme support for custom logo as it is required for WordPress 4.5 onwards
	add_theme_support( 'custom-logo', array(
			'width'  		=> 367,
			'height' 		=> 92,
			'flex-width' 	=> true,
			'flex-height' 	=> true
		)
	);
	
/**
 * knops Custom Logo
 */
function knops_get_custom_logo() {
	
	if ( function_exists( 'get_custom_logo' ) ) {
		return get_custom_logo();
	}
}
?>

header.php

<?php if(function_exists('glamsdalens_get_custom_logo')): $logoOutput = glamsdalens_get_custom_logo();  else: $logoOutput = ''; endif; 
                        if( ($logoOutput != '') ): 
                            echo '<div class="navbar-brand">'.$logoOutput.'</div>';
                        else : ?>
                            <h1 class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></h1>
                            <?php
                            $description = get_bloginfo( 'description', 'display' );
                            if ( $description || is_customize_preview() ) : ?>
                                <p class="site-description"><?php echo $description; /* WPCS: xss ok. */ ?></p>
                            <?php
                            endif; ?>                            
                        <?php endif; ?>