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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 |
---|---|
1012 | * - `delete_comment_metadata_by_mid` |
1013 | * - `delete_term_metadata_by_mid` |
1014 | * - `delete_user_metadata_by_mid` |
1015 | * |
1016 | * @since 5.0.0 |
1017 | * |
1018 | * @param null|bool $delete Whether to allow metadata deletion of the given type. |
1019 | * @param int $meta_id Meta ID. |
1020 | */ |
1021 | $check = apply_filters( "delete_{$meta_type}_metadata_by_mid", null, $meta_id ); |
1022 | if ( null !== $check ) { |
1023 | return (bool) $check; |
1024 | } |
1025 |
|
1026 | // Fetch the meta and go on if it's found. |
1027 | $meta = get_metadata_by_mid( $meta_type, $meta_id ); |
1028 | if ( $meta ) { |
1029 | $object_id = (int) $meta->{$column}; |
1030 |
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