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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 |
|---|---|
| 1833 | |
| 1834 | /** |
| 1835 | * Fires after the permalink structure is updated. |
| 1836 | * |
| 1837 | * @since 2.8.0 |
| 1838 | * |
| 1839 | * @param string $old_permalink_structure The previous permalink structure. |
| 1840 | * @param string $permalink_structure The new permalink structure. |
| 1841 | */ |
| 1842 | do_action( 'permalink_structure_changed', $old_permalink_structure, $permalink_structure ); |
| 1843 | } |
| 1844 | } |
| 1845 | |
| 1846 | /** |
| 1847 | * Sets the category base for the category permalink. |
| 1848 | * |
| 1849 | * Will update the 'category_base' option, if there is a difference between |
| 1850 | * the current category base and the parameter value. Calls WP_Rewrite::init() |
| 1851 | * after the option is updated. |