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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 |
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39 | $lifetime = $this->lifetime; |
40 | /** |
41 | * Filter the transient lifetime of the feed cache. |
42 | * |
43 | * @since 2.8.0 |
44 | * |
45 | * @param int $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours). |
46 | * @param string $filename Unique identifier for the cache object. |
47 | */ |
48 | $this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $filename); |
49 | } |
50 |
|
51 | /** |
52 | * @access public |
53 | * |
54 | * @param SimplePie $data Data to save. |
55 | * @return true Always true. |
56 | */ |
57 | public function save($data) { |