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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 62 | |
| 63 | /** |
| 64 | * Filter the RSS update frequency. |
| 65 | * |
| 66 | * @since 2.1.0 |
| 67 | * |
| 68 | * @param string $frequency An integer passed as a string representing the frequency |
| 69 | * of RSS updates within the update period. Default '1'. |
| 70 | */ |
| 71 | echo apply_filters( 'rss_update_frequency', $frequency ); |
| 72 | ?></sy:updateFrequency> |
| 73 | <?php |
| 74 | /** |
| 75 | * Fires at the end of the RSS2 Feed Header. |
| 76 | * |
| 77 | * @since 2.0.0 |
| 78 | */ |
| 79 | do_action( 'rss2_head'); |
| 80 | |