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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 |
|---|---|
| 697 | delete_option($transient_option); |
| 698 | delete_option($transient_timeout); |
| 699 | return false; |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | $value = get_option($transient_option); |
| 704 | } |
| 705 | |
| 706 | return apply_filters('transient_' . $transient, $value); |
| 707 | } |
| 708 | |
| 709 | /** |
| 710 | * Set/update the value of a transient |
| 711 | * |
| 712 | * You do not need to serialize values, if the value needs to be serialize, then |
| 713 | * it will be serialized before it is set. |
| 714 | * |
| 715 | * @since 2.8.0 |