filters.php

<?php

$selectedFilters['region'] = 'ALL';
$selectedFilters['state'] = 'ALL';
$selectedFilters['zip'] = 60101;
$selectedFilters['specialty'] = 'ALL';

$dataGrid[] = array(
  'client' => 'A',
  'region' => 'east',
  'state' => 'IL',
  'cardiology' => 1,
  'radiology' => 0,
  'oncology' => 1,
  'zip' => 60131,
);
$dataGrid[] = array(
  'client' => 'B',
  'region' => 'west',
  'state' => 'WI',
  'cardiology' => 0,
  'radiology' => 1,
  'oncology' => 1,
  'zip' => 60607
);
$dataGrid[] = array(
  'client' => 'C',
  'region' => 'midwest',
  'state' => 'WY',
  'cardiology' => 0,
  'radiology' => 0,
  'oncology' => 0,
  'zip' => 60126
);

$includes = array();
foreach ($selectedFilters as $filterType => $filter) {
  foreach ($dataGrid as $record) {
    $includeRecord = FALSE;
    if ($filterType == 'specialty' || $filterType == 'specialities2') {
      $includeRecord = parseMultipleColumn($filterType, $filter, $record);
    } else {
      $includeRecord = parseSingleColumn($filterType, $filter, $record);
    }
    $includes[$record['client']][$filterType] = $includeRecord;
  }
}

var_dump($dataGrid);
var_dump($includes);

function parseSingleColumn($filterType, $filter, $record) {
  $bool = FALSE;
  if ( ($filter == 'ALL') || ($filter == $record[$filterType]) ) {
    $bool = TRUE;
    return $bool;
  }
  return $bool;
}

/**
 * parser function to do.
 * trying enforce
 * @param  [type] $filterType [description]
 * @param  [type] $filter     [description]
 * @param  [type] $record     [description]
 * @return [type]             [description]
 */
function parseMultipleColumn($filterType, $filter, $record) {
  if ($filterType == 'specialty') {
    $defaultFilters = array('cardiology', 'radiology', 'oncology');
  } elseif ($filterType == 'specialities2') {
    $defaultFilters = array('ei.clon', 'a', 'ogklkgk');
  }
  $bool = FALSE;
  $specFilters = array();
  if ($filter == 'ALL') {
    $specFilters = $defaultFilters;
  } else {
    $specFilters = array($filter);
  }
  foreach ($specFilters as $specFilter) {
    if ($record[$specFilter] == 1) {
      $bool = TRUE;
    }
  }
  // ALL is ANY
  return $bool;
}

?>