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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 |
|---|---|
| 748 | delete_option( $transient_timeout ); |
| 749 | return false; |
| 750 | } |
| 751 | } |
| 752 | } |
| 753 | |
| 754 | $value = get_option( $transient_option ); |
| 755 | } |
| 756 | |
| 757 | return apply_filters( 'transient_' . $transient, $value ); |
| 758 | } |
| 759 | |
| 760 | /** |
| 761 | * Set/update the value of a transient |
| 762 | * |
| 763 | * You do not need to serialize values. If the value needs to be serialized, then |
| 764 | * it will be serialized before it is set. |
| 765 | * |
| 766 | * @since 2.8.0 |