bava-library-options.php

<?php

//simple GF merge field modifier that replaces the space with a dash
add_filter( 'gform_merge_tag_filter', function ( $value, $merge_tag, $modifier, $field, $raw_value, $format ) {
    if ( $merge_tag != 'all_fields' && $modifier == 'urlmaker' ) {
        $value = str_replace(" ", "-", $value);
    }
 
    return $value;
}, 10, 6 );


//more complex GF merge field modifier that deals with mulitple entries
add_filter( 'gform_merge_tag_filter', 'bava_modifier', 10, 6 );
function bava_modifier ( $value, $merge_tag, $modifier, $field, $raw_value, $format ) {
    $html = '';
    if ( $merge_tag != 'all_fields' && $modifier == 'bavait' ) {
        $array_it = explode(', ',$value);
        foreach ($array_it as $item) {
        	$hyphen = str_replace(" ", "-", $item);
        	$url = site_url();
    		$html .= "<a class='bava-link' href='{$url}/tag/{$hyphen}'>{$item}</a><br>";
		}
        $value = $html;
    }
 	
    return $value;
}


//as shortcode that doesn't care about gf at all, it just shows the post's tags
function bava_tags(){
  $post_tags = get_the_tags();
    $html = '';
 
    if ( ! empty( $post_tags ) ) {
        foreach ( $post_tags as $tag ) {
            $html .= '<a href="' . esc_attr( get_tag_link( $tag->term_id ) ) . '">' . __( $tag->name ) . '</a><br>';
        }
    }
 
    return trim( $html );
}
add_shortcode('bava-tags', 'bava_tags');