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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 |
---|---|
1313 | * |
1314 | * @since 4.9.8 |
1315 | * |
1316 | * @param mixed $meta_value Metadata value to sanitize. |
1317 | * @param string $meta_key Metadata key. |
1318 | * @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user', |
1319 | * or any other object type with an associated meta table. |
1320 | * @param string $object_subtype Object subtype. |
1321 | */ |
1322 | return apply_filters( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $meta_value, $meta_key, $object_type, $object_subtype ); |
1323 | } |
1324 |
|
1325 | /** |
1326 | * Filters the sanitization of a specific meta key of a specific meta type. |
1327 | * |
1328 | * The dynamic portions of the hook name, `$meta_type`, and `$meta_key`, |
1329 | * refer to the metadata object type (comment, post, term, or user) and the meta |
1330 | * key value, respectively. |
1331 | * |