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Database abstraction layer

Allow the use of different database servers using the same code base.

Code

includes/database/prefetch.inc, line 448

<?php
public function fetchCol($index = 0) {
  if (isset($this->columnNames[$index])) {
    $column = $this->columnNames[$index];
    $result = array();
    // Traverse the array as PHP would have done.
    while (isset($this->currentRow)) {
      $result[] = $this->currentRow[$this->columnNames[$index]];
      $this->next();
    }
    return $result;
  }
  else {
    return array();
  }
}
?>