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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 |
|---|---|
| 552 | } |
| 553 | |
| 554 | /** |
| 555 | * Filters whether the site has more than one author with published posts. |
| 556 | * |
| 557 | * @since 3.2.0 |
| 558 | * |
| 559 | * @param bool $is_multi_author Whether $is_multi_author should evaluate as true. |
| 560 | */ |
| 561 | return apply_filters( 'is_multi_author', (bool) $is_multi_author ); |
| 562 | } |
| 563 | |
| 564 | /** |
| 565 | * Helper function to clear the cache for number of authors. |
| 566 | * |
| 567 | * @since 3.2.0 |
| 568 | * @access private |
| 569 | */ |
| 570 | function __clear_multi_author_cache() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore |