CodeExplorer shortcode_exists example
function has_shortcode( $content,
$tag ) { if ( !
str_contains( $content, '['
) ) { return false;
} if ( shortcode_exists( $tag ) ) { preg_match_all( '/' .
get_shortcode_regex() . '/',
$content,
$matches, PREG_SET_ORDER
);
if ( empty( $matches ) ) { return false;
} foreach ( $matches as $shortcode ) { if ( $tag ===
$shortcode[2
] ) { return true;
} elseif ( !
empty( $shortcode[5
] ) &&
has_shortcode( $shortcode[5
],
$tag ) ) { return true;
} }