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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 |
---|---|
1759 |
|
1760 | echo $screen_options; |
1761 | echo $settings; ?> |
1762 | <div><?php wp_nonce_field( 'screen-options-nonce', 'screenoptionnonce', false ); ?></div> |
1763 | </form> |
1764 | </div> |
1765 |
|
1766 | <?php endif; // $show_screen |
1767 |
|
1768 | $_wp_contextual_help = apply_filters('contextual_help_list', $_wp_contextual_help, $screen); |
1769 | ?> |
1770 | <div id="contextual-help-wrap" class="hidden"> |
1771 | <?php |
1772 | $contextual_help = ''; |
1773 | if ( isset($_wp_contextual_help[$screen->id]) ) { |
1774 | $contextual_help .= '<div class="metabox-prefs">' . $_wp_contextual_help[$screen->id] . "</div>\n"; |
1775 | } else { |
1776 | $contextual_help .= '<div class="metabox-prefs">'; |
1777 | $default_help = __('<a href="http://codex.wordpress.org/" target="_blank">Documentation</a>'); |