You could run hooks inside the body by adding manually an add_action below body tag, for example:
do_action('after_body');
But in some cases, if your building a shortcode based plugin and might need to make this automatically added right after the
, the PHP output buffer and regular expression could be helpful on those instances, example:
// BUFFER START
function process_buffer_start() {
ob_start();
}
add_action( 'wp_head', 'process_buffer_start');
function process_buffer_end() {
$get_clean_buffer = ob_get_clean();
ob_start();
$process_shortcode = do_shortcode( '[myshortcode text="WordPress"]' );
echo preg_replace( '<body.*>', '$0' . $process_shortcode, $get_clean_buffer );
ob_flush();
}
add_action( 'wp_footer', 'process_buffer_end');
// SHORTCODE
function myshortcode_fallback( $atts ) {
$a = shortcode_atts( array(
'text' => ''
), $atts );
return sprintf( '<div>I love %1$s</div>', $a['text'] );
}
add_shortcode( 'myshortcode', 'myshortcode_fallback' );
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