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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 |
|---|---|
| 55 | $hook_suffixes[] = "-$pagenow"; |
| 56 | |
| 57 | $hook_suffixes[] = ''; |
| 58 | |
| 59 | foreach ( $hook_suffixes as $hook_suffix ) |
| 60 | do_action("admin_print_styles$hook_suffix"); // do_action( 'admin_print_styles-XXX' ); do_action( 'admin_print_styles' ); |
| 61 | foreach ( $hook_suffixes as $hook_suffix ) |
| 62 | do_action("admin_print_scripts$hook_suffix"); // do_action( 'admin_print_scripts-XXX' ); do_action( 'admin_print_scripts' ); |
| 63 | foreach ( $hook_suffixes as $hook_suffix ) |
| 64 | do_action("admin_head$hook_suffix"); // do_action( 'admin_head-XXX' ); do_action( 'admin_head' ); |
| 65 | unset($hook_suffixes, $hook_suffix); |
| 66 | |
| 67 | ?> |
| 68 | </head> |
| 69 | <body class="wp-admin <?php echo apply_filters( 'admin_body_class', '' ); ?>"> |
| 70 | <div id="wpwrap"> |
| 71 | <div id="wpcontent"> |
| 72 | <div id="wphead"> |
| 73 | <h1><?php if ( '' == get_bloginfo('name', 'display') ) echo ' '; else echo get_bloginfo('name', 'display'); ?><span id="viewsite"><a href="<?php echo trailingslashit( get_option('home') ); ?>"><?php _e('Visit Site') ?></a></span></h1> |