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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 |
---|---|
1493 | */ |
1494 | function wp_doing_ajax() { |
1495 | /** |
1496 | * Filters whether the current request is a WordPress Ajax request. |
1497 | * |
1498 | * @since 4.7.0 |
1499 | * |
1500 | * @param bool $wp_doing_ajax Whether the current request is a WordPress Ajax request. |
1501 | */ |
1502 | return apply_filters( 'wp_doing_ajax', defined( 'DOING_AJAX' ) && DOING_AJAX ); |
1503 | } |
1504 |
|
1505 | /** |
1506 | * Determines whether the current request should use themes. |
1507 | * |
1508 | * @since 5.1.0 |
1509 | * |
1510 | * @return bool True if themes should be used, false otherwise. |
1511 | */ |