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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 |
|---|---|
| 331 | |
| 332 | return $current_theme; |
| 333 | } |
| 334 | |
| 335 | function get_theme_root() { |
| 336 | return apply_filters('theme_root', WP_CONTENT_DIR . "/themes"); |
| 337 | } |
| 338 | |
| 339 | function get_theme_root_uri() { |
| 340 | return apply_filters('theme_root_uri', content_url('themes'), get_option('siteurl')); |
| 341 | } |
| 342 | |
| 343 | function get_query_template($type) { |
| 344 | $template = ''; |
| 345 | $type = preg_replace( '|[^a-z0-9-]+|', '', $type ); |
| 346 | if ( file_exists(TEMPLATEPATH . "/{$type}.php") ) |
| 347 | $template = TEMPLATEPATH . "/{$type}.php"; |
| 348 | |
| 349 | return apply_filters("{$type}_template", $template); |