Generate Shortcodes by Taxonomy

You want to define a potentially huge number of different shortcodes with the same shortcode callback?

Why don’t you define a single shortcode, with a term attribute? For example

[sc term="london"]

ps:

I think your problem lies in the $tax_term->name part, which could be a string like City of London and that’s not a valid shortcode name. Try $tax_term->slug instead, but I don’t think it’s a good strategy!

Another problem is that you are defining a function inside the foreach loop. That should give you an error like: Fatal error: Cannot redeclare examples_shortcode() ....

You should consider using WP_DEBUG in your developement. Here’s a good starting point.

Update:

You could use for example:

function square_slider_shortcode( $atts = array(), $content="" )
{
    $atts = shortcode_atts( array(
                        'type'      => 'sport', // default type
                        'nr'        => 5,       // default number of slides
                    ), $atts, 'square_slider' );

    // Sanitize input:
    $type = sanitize_title( $atts['type'] );
    $nr   = (int) $atts['nr'];

    // Output
    return square_slider_template( $type, $nr );    
}

add_shortcode( 'slider', 'square_slider_shortcode' );

where:

function square_slider_template( $type="", $nr = 5 )
{
    // Query Arguments
    $args = array(
        'post_type'       => 'slides',
        'posts_per_page'  => $nr,
        'tax_query'       => array(
             array(
                'taxonomy' => 'slides',
                'field'    => 'slug',
                'terms'    => $type,
             ),
        ),      
    );  

    // The Query
    $the_query = new WP_Query( $args );

    // ... etc ...

    return $html;
}

Then your shortcode syntax would be:

[slider type="sport" nr="5"]

where you now can change the term (type) and the number of slides (nr) to your needs.