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get_metadata_by_mid › WordPress Function
Seit3.3.0
Veraltetn/v
› get_metadata_by_mid ( $meta_type, $meta_id )
Parameter: (2) |
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Gibt zurück: |
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Definiert in: |
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Codex: |
Get meta data by meta ID
Ähnliche Funktionen: delete_metadata_by_mid, update_metadata_by_mid, get_metadata, get_post_meta_by_id, _get_meta_table
Quellcode
function get_metadata_by_mid( $meta_type, $meta_id ) { global $wpdb; if ( ! $meta_type || ! is_numeric( $meta_id ) || floor( $meta_id ) != $meta_id ) { return false; } $meta_id = intval( $meta_id ); if ( $meta_id <= 0 ) { return false; } $table = _get_meta_table( $meta_type ); if ( ! $table ) { return false; } $id_column = ( 'user' == $meta_type ) ? 'umeta_id' : 'meta_id'; /** * Filters whether to retrieve metadata of a specific type by meta ID. * * The dynamic portion of the hook, `$meta_type`, refers to the meta * object type (comment, post, term, or user). Returning a non-null value * will effectively short-circuit the function. * * @since 5.0.0 * * @param mixed $value The value get_metadata_by_mid() should return. * @param int $meta_id Meta ID. */ $check = apply_filters( "get_{$meta_type}_metadata_by_mid", null, $meta_id ); if ( null !== $check ) { return $check; } $meta = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $table WHERE $id_column = %d", $meta_id ) ); if ( empty( $meta ) ) { return false; } if ( isset( $meta->meta_value ) ) { $meta->meta_value = maybe_unserialize( $meta->meta_value ); } return $meta; }