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get_metadata › WordPress Function
Since2.9.0
已弃用n/a
› get_metadata ( $meta_type, $object_id, $meta_key = '', $single = false )
参数: (4) |
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Retrieves the value of a metadata field for the specified object type and ID.
If the meta field exists, a single value is returned if$single
is true,
or an array of values if it's false.
If the meta field does not exist, the result depends on get_metadata_default().
By default, an empty string is returned if $single
is true, or an empty array
if it's false.Related Functions: get_metadata_raw, get_commentdata, delete_metadata, get_theme_data, get_metadata_by_mid