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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 |
---|---|
2437 | ); |
2438 |
|
2439 | /** |
2440 | * Filter the default list of post mime types. |
2441 | * |
2442 | * @since 2.5.0 |
2443 | * |
2444 | * @param array $post_mime_types Default list of post mime types. |
2445 | */ |
2446 | return apply_filters( 'post_mime_types', $post_mime_types ); |
2447 | } |
2448 |
|
2449 | /** |
2450 | * Check a MIME-Type against a list. |
2451 | * |
2452 | * If the wildcard_mime_types parameter is a string, it must be comma separated |
2453 | * list. If the real_mime_types is a string, it is also comma separated to |
2454 | * create the list. |
2455 | * |