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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 |
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433 | } |
434 |
|
435 | /** |
436 | * Filter whether the site has more than one author with published posts. |
437 | * |
438 | * @since 3.2.0 |
439 | * |
440 | * @param bool $is_multi_author Whether $is_multi_author should evaluate as true. |
441 | */ |
442 | return apply_filters( 'is_multi_author', (bool) $is_multi_author ); |
443 | } |
444 |
|
445 | /** |
446 | * Helper function to clear the cache for number of authors. |
447 | * |
448 | * @private |
449 | */ |
450 | function __clear_multi_author_cache() { |
451 | delete_transient( 'is_multi_author' ); |