Custom shortcode for Visual Composer on WordPress

functions.php

<?php

function vc_integrate_custom() {
    vc_map( array (
	"name" => "Team",
	"base" => "team",
	"category" => 'Custom',
		"icon" => "icon-wpb-team",
		"allowed_container_element" => 'vc_row',
		"params" => array(
			array(
				"type" => "attach_image",
				"holder" => "div",
				"class" => "",
				"heading" => "Image",
				"param_name" => "team_image"
			),
			array(
				"type" => "textfield",
				"holder" => "div",
				"class" => "",
				"heading" => "Name",
				"param_name" => "team_name"
			),
			array(
				"type" => "textfield",
				"holder" => "div",
				"class" => "",
				"heading" => "Position",
				"param_name" => "team_position"
			),
			array(
				"type" => "textfield",
				"holder" => "div",
				"class" => "",
				"heading" => "Link",
				"param_name" => "team_link"
			)
		)
	));
} 
add_action ( 'vc_after_init', 'vc_integrate_custom' );

/* ---------------------------------------------------------------------------
 * Team Shortcode
 * --------------------------------------------------------------------------- */
if (!function_exists('sc_team')) {
    function sc_team($atts, $content = null) {
        $args = array(
            "team_image"				=> "",
            "team_name"					=> "",
            "team_position"				=> "",
            "team_link"					=> "",
            "title_tag"					=> "h4"
        );

        extract(shortcode_atts($args, $atts));

        if(is_numeric($team_image)) {
            $team_image_src = wp_get_attachment_url( $team_image );
        } else {
            $team_image_src = $team_image;
        }

        $html =  "<div class='team'>";
        $html .=  "<div class='team_inner'>";
        if($team_image != "") {
            $html .=  "<div class='team_image'>";

            if($team_link != "") { 
	            $html .= "<a class='team_link_for_touch' href='$team_link' />";
	        }
	            $html .= "<img src='$team_image_src' alt='' />";
            if($team_link != "") { 
	            $html .= "</a>";
	        }

            $html .=  "</div>";
        }
        $html .=  "<div class='team_text'>";
        $html .=  "<div class='team_text_inner'>";
        $html .=  "<div class='team_title_holder'>";

        $html .=  "<$title_tag class='team_name'>";
        $html .= $team_name;
        $html .=  "</$title_tag>";
        if($team_position != "") {
            $html .= "<span>" . $team_position . "</span>";
        }
        $html .=  "</div>"; //team_title_holder
        $html .=  "</div>"; //team_text_inner
        $html .=  "</div>"; //team_text

        $html .=  "</div>"; //team_inner
        $html .=  "</div>"; //team
        return $html;
    }
}
add_shortcode('team', 'sc_team');