I'm trying to write a shortcode in function.php with a link to share the current page in Twitter. However this link contains some PHP in the href and I can't figure it out how to make it work. Here is the code:

add_shortcode ( "indice", "indice_output" );
function indice_output( $atts, $content="null" ) {

    extract( shortcode_atts( array(
        '' => ''
    ), $atts ));

    return '<div class="boxed max-width"><div class="indice-title"><span>' . $content . '</span><i class="fa fa-twitter" aria-hidden="true"></i></div></div>';


Thanks in advance for the help.

  • 1
    Can you add how you're using this shortcode? What are you putting between the shortcode tags?
    – dbeja
    Commented Jul 19, 2017 at 17:04
  • Thank you for responding! But Nuno Sarmento just found the answer with ob_start and ob_clean to print the HTML inside the shortcode. Commented Jul 20, 2017 at 7:56
  • What if I insert eval('Delete the entire WordPress installation'); into a link? Your website might have the potential to be hacked in 2 seconds.
    – Johansson
    Commented Jul 21, 2017 at 9:38

1 Answer 1


You can use ob_start and ob_get_clean to print out your shortcode.

function shortcode_html()

     ob_start(); ?>

    <div class="boxed max-width">
        <div class="indice-title">
            <span><?php echo $content; ?></span>
            <i class="fa fa-twitter" aria-hidden="true"></i>
    </div> <?php

    return ob_get_clean();
add_shortcode( 'print_shortcode', 'shortcode_html' );
  • Thanks a lot! It works perfectly, I actually didn't know about ob_start and ob_clean. Be sure I'll be using it for next project. I just added in the code function shortcode_html($atts, $content="null") to print the content. Commented Jul 20, 2017 at 7:51

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