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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 |
|---|---|
| 1788 | * |
| 1789 | * The dynamic portion of the hook name, `$transient`, refers to the transient name. |
| 1790 | * |
| 1791 | * @since 2.9.0 |
| 1792 | * @since 4.4.0 The `$transient` parameter was added. |
| 1793 | * |
| 1794 | * @param mixed $value Value of site transient. |
| 1795 | * @param string $transient Transient name. |
| 1796 | */ |
| 1797 | return apply_filters( "site_transient_{$transient}", $value, $transient ); |
| 1798 | } |
| 1799 | |
| 1800 | /** |
| 1801 | * Set/update the value of a site transient. |
| 1802 | * |
| 1803 | * You do not need to serialize values, if the value needs to be serialize, then |
| 1804 | * it will be serialized before it is set. |
| 1805 | * |
| 1806 | * @since 2.9.0 |