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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 |
|---|---|
| 43 | function themes_api($action, $args = null) { |
| 44 | |
| 45 | if ( is_array($args) ) |
| 46 | $args = (object)$args; |
| 47 | |
| 48 | if ( !isset($args->per_page) ) |
| 49 | $args->per_page = 24; |
| 50 | |
| 51 | $args = apply_filters('themes_api_args', $args, $action); //NOTE: Ensure that an object is returned via this filter. |
| 52 | $res = apply_filters('themes_api', false, $action, $args); //NOTE: Allows a theme to completely override the builtin WordPress.org API. |
| 53 | |
| 54 | if ( ! $res ) { |
| 55 | $request = wp_remote_post('http://api.wordpress.org/themes/info/1.0/', array( 'body' => array('action' => $action, 'request' => serialize($args))) ); |
| 56 | if ( is_wp_error($request) ) { |
| 57 | $res = new WP_Error('themes_api_failed', __('An Unexpected HTTP Error occured during the API request.</p> <p><a href="?" onclick="document.location.reload(); return false;">Try again</a>'), $request->get_error_message() ); |
| 58 | } else { |
| 59 | $res = unserialize($request['body']); |
| 60 | if ( ! $res ) |
| 61 | $res = new WP_Error('themes_api_failed', __('An unknown error occured'), $request['body']); |