wp-includes/class-wpdb.php:3061Retrieves one row from the database.
$querystring|nulloptionalnull$outputstringoptionalOBJECT$yintoptional0array|object|null|void public function get_row( $query = null, $output = OBJECT, $y = 0 ) { $this->func_call = "\$db->get_row(\"$query\",$output,$y)"; if ( $query ) { if ( $this->check_current_query && $this->check_safe_collation( $query ) ) { $this->check_current_query = false; } $this->query( $query ); } else { return null; } if ( ! isset( $this->last_result[ $y ] ) ) { return null; } if ( OBJECT === $output ) { return $this->last_result[ $y ] ? $this->last_result[ $y ] : null; } elseif ( ARRAY_A === $output ) { return $this->last_result[ $y ] ? get_object_vars( $this->last_result[ $y ] ) : null; } elseif ( ARRAY_N === $output ) { return $this->last_result[ $y ] ? array_values( get_object_vars( $this->last_result[ $y ] ) ) : null; } elseif ( OBJECT === strtoupper( $output ) ) { // Back compat for OBJECT being previously case-insensitive. return $this->last_result[ $y ] ? $this->last_result[ $y ] : null; } else { $this->print_error( ' $db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N' ); } }Introduced in 0.71. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
array|object|null|void to array|object|null.verified against sourcesrc/wp-includes/class-wpdb.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.