Title: wpdb::load_col_info
Published: April 25, 2014
Last modified: February 24, 2026

---

# wpdb::load_col_info()

## In this article

 * [Source](https://developer.wordpress.org/reference/classes/wpdb/load_col_info/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wpdb/load_col_info/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wpdb/load_col_info/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wpdb/load_col_info/?output_format=md#wp--skip-link--target)

Loads the column metadata from the last query.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wpdb/load_col_info/?output_format=md#source)󠁿

    ```php
    protected function load_col_info() {
    	if ( $this->col_info ) {
    		return;
    	}

    	$num_fields = mysqli_num_fields( $this->result );

    	for ( $i = 0; $i < $num_fields; $i++ ) {
    		$this->col_info[ $i ] = mysqli_fetch_field( $this->result );
    	}
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wpdb.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/class-wpdb.php#L3871)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/class-wpdb.php#L3871-L3881)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wpdb/load_col_info/?output_format=md#related)󠁿

| Used by | Description | 
| [wpdb::get_col_info()](https://developer.wordpress.org/reference/classes/wpdb/get_col_info/)`wp-includes/class-wpdb.php` |

Retrieves column metadata from the last query.

  | 
| [wpdb::__get()](https://developer.wordpress.org/reference/classes/wpdb/__get/)`wp-includes/class-wpdb.php` |

Makes private properties readable for backward compatibility.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wpdb/load_col_info/?output_format=md#changelog)󠁿

| Version | Description | 
| [3.5.0](https://developer.wordpress.org/reference/since/3.5.0/) | Introduced. |

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