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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 296 | * etc any additional function args will be passed to content_func. |
| 297 | * |
| 298 | * @since 2.5.0 |
| 299 | * |
| 300 | * @param unknown_type $content_func |
| 301 | */ |
| 302 | function wp_iframe($content_func /* ... */) { |
| 303 | ?> |
| 304 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| 305 | <html xmlns="http://www.w3.org/1999/xhtml" <?php do_action('admin_xml_ns'); ?> <?php language_attributes(); ?>> |
| 306 | <head> |
| 307 | <meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php echo get_option('blog_charset'); ?>" /> |
| 308 | <title><?php bloginfo('name') ?> › <?php _e('Uploads'); ?> — <?php _e('WordPress'); ?></title> |
| 309 | <?php |
| 310 | wp_enqueue_style( 'global' ); |
| 311 | wp_enqueue_style( 'wp-admin' ); |
| 312 | wp_enqueue_style( 'colors' ); |
| 313 | // Check callback name for 'media' |
| 314 | if ( ( is_array( $content_func ) && ! empty( $content_func[1] ) && 0 === strpos( (string) $content_func[1], 'media' ) ) |