db_field_names

Return an array of field names from an array of key/index column specifiers.

This is usually an identity function but if a key/index uses a column prefix specification, this function extracts just the name.

Parameters

$fields: An array of key/index column specifiers.

Return value

An array of field names.

Related topics

Schema API

A Drupal schema definition is an array structure representing one or more tables and their related keys and indexes. A schema is defined by hook_schema(), which usually lives in a modulename.install file.

3 functions call db_field_names()

File

drupal/includes/database.inc, line 565

Wrapper for database interface code.

Code

<?php
function db_field_names($fields) {
  $ret = array();
  foreach ($fields as $field) {
    if (is_array($field)) {
      $ret[] = $field[0];
    }
    else {
      $ret[] = $field;
    }
  }
  return $ret;
}
?>