wpdb::get_col_info( string $info_type = 'name', int $col_offset = -1 )
Retrieves column metadata from the last query.
Parameters
- $info_type
-
(Optional) Possible values include 'name', 'table', 'def', 'max_length', 'not_null', 'primary_key', 'multiple_key', 'unique_key', 'numeric', 'blob', 'type', 'unsigned', 'zerofill'. Default 'name'.
Default value: 'name'
- $col_offset
-
(Optional) 0: col name. 1: which table the col's in. 2: col's max length.<br> 3: if the col is numeric. 4: col's type.
Default value: -1
Return
(mixed) Column results.
Source
File: wp-includes/class-wpdb.php
public function get_col_info( $info_type = 'name', $col_offset = -1 ) {
$this->load_col_info();
if ( $this->col_info ) {
if ( $col_offset == -1 ) {
$i = 0;
$new_array = array();
foreach ( (array) $this->col_info as $col ) {
$new_array[$i] = $col->{$info_type};
$i++;
}
return $new_array;
} else {
return $this->col_info[$col_offset]->{$info_type};
}
}
}
Changelog
| Version | Description |
|---|---|
| 0.71 | Introduced. |