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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 |
|---|---|
| 1612 | * |
| 1613 | * The dynamic portion of the hook name, `$transient`, refers to the transient name. |
| 1614 | * |
| 1615 | * @since 2.9.0 |
| 1616 | * @since 4.4.0 The `$transient` parameter was added. |
| 1617 | * |
| 1618 | * @param mixed $value Value of site transient. |
| 1619 | * @param string $transient Transient name. |
| 1620 | */ |
| 1621 | return apply_filters( "site_transient_{$transient}", $value, $transient ); |
| 1622 | } |
| 1623 | |
| 1624 | /** |
| 1625 | * Set/update the value of a site transient. |
| 1626 | * |
| 1627 | * You do not need to serialize values, if the value needs to be serialize, then |
| 1628 | * it will be serialized before it is set. |
| 1629 | * |
| 1630 | * @since 2.9.0 |