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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 |
|---|---|
| 11 | die(); |
| 12 | } |
| 13 | |
| 14 | if ( is_object( $wp_object_cache ) ) |
| 15 | $wp_object_cache->cache_enabled = false; |
| 16 | |
| 17 | do_action("activate_header"); |
| 18 | |
| 19 | function do_activate_header() { |
| 20 | do_action("activate_wp_head"); |
| 21 | } |
| 22 | add_action( 'wp_head', 'do_activate_header' ); |
| 23 | |
| 24 | function wpmu_activate_stylesheet() { |
| 25 | ?> |
| 26 | <style type="text/css"> |
| 27 | form { margin-top: 2em; } |
| 28 | #submit, #key { width: 90%; font-size: 24px; } |
| 29 | #language { margin-top: .5em; } |