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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 |
|---|---|
| 248 | * |
| 249 | * The 'wp_meta' action can have several purposes, depending on how you use it, |
| 250 | * but one purpose might have been to allow for theme switching. |
| 251 | * |
| 252 | * @since 1.5.0 |
| 253 | * @link http://trac.wordpress.org/ticket/1458 Explanation of 'wp_meta' action. |
| 254 | * @uses do_action() Calls 'wp_meta' hook. |
| 255 | */ |
| 256 | function wp_meta() { |
| 257 | do_action('wp_meta'); |
| 258 | } |
| 259 | |
| 260 | /** |
| 261 | * Display information about the blog. |
| 262 | * |
| 263 | * @see get_bloginfo() For possible values for the parameter. |
| 264 | * @since 0.71 |
| 265 | * |
| 266 | * @param string $show What to display. |