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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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2196 | ); |
2197 |
|
2198 | /** |
2199 | * Filters the default list of post mime types. |
2200 | * |
2201 | * @since 2.5.0 |
2202 | * |
2203 | * @param array $post_mime_types Default list of post mime types. |
2204 | */ |
2205 | return apply_filters( 'post_mime_types', $post_mime_types ); |
2206 | } |
2207 |
|
2208 | /** |
2209 | * Check a MIME-Type against a list. |
2210 | * |
2211 | * If the wildcard_mime_types parameter is a string, it must be comma separated |
2212 | * list. If the real_mime_types is a string, it is also comma separated to |
2213 | * create the list. |
2214 | * |