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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\Statistical;
use PhpOffice\PhpSpreadsheet\Calculation\Database\DAverage;
use PhpOffice\PhpSpreadsheet\Calculation\Database\DCount;
use PhpOffice\PhpSpreadsheet\Calculation\Database\DMax;
use PhpOffice\PhpSpreadsheet\Calculation\Database\DMin;
use PhpOffice\PhpSpreadsheet\Calculation\Database\DSum;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
class Conditional
{
private const CONDITION_COLUMN_NAME = 'CONDITION';
private const VALUE_COLUMN_NAME = 'VALUE';
private const CONDITIONAL_COLUMN_NAME = 'CONDITIONAL %d';
/**
* AVERAGEIF.
*
* Returns the average value from a range of cells that contain numbers within the list of arguments
*
* Excel Function:
* AVERAGEIF(range,condition[, average_range])
*
* @param mixed[] $range Data values
* @param string $condition the criteria that defines which cells will be checked
* @param mixed[] $averageRange Data values
*
* @return null|float|string
*/
public static function AVERAGEIF($range, $condition, $averageRange = [])
{
$database = self::databaseFromRangeAndValue($range, $averageRange);
$condition = [[self::CONDITION_COLUMN_NAME, self::VALUE_COLUMN_NAME], [$condition, null]];
return DAverage::evaluate($database, self::VALUE_COLUMN_NAME, $condition);
}
/**
* AVERAGEIFS.
*
* Counts the number of cells that contain numbers within the list of arguments
*
* Excel Function:
* AVERAGEIFS(average_range, criteria_range1, criteria1, [criteria_range2, criteria2]…)
*
* @param mixed $args Pairs of Ranges and Criteria
*
* @return null|float|string
*/
public static function AVERAGEIFS(...$args)
{
if (empty($args)) {
return 0.0;
} elseif (count($args) === 3) {
return self::AVERAGEIF($args[1], $args[2], $args[0]);
}
$conditions = self::buildConditionSetForValueRange(...$args);
$database = self::buildDatabaseWithValueRange(...$args);
return DAverage::evaluate($database, self::VALUE_COLUMN_NAME, $conditions);
}
/**
* COUNTIF.
*
* Counts the number of cells that contain numbers within the list of arguments
*
* Excel Function:
* COUNTIF(range,condition)
*
* @param mixed[] $range Data values
* @param string $condition the criteria that defines which cells will be counted
*
* @return int
*/
public static function COUNTIF($range, $condition)
{
// Filter out any empty values that shouldn't be included in a COUNT
$range = array_filter(
Functions::flattenArray($range),
function ($value) {
return $value !== null && $value !== '';
}
);
$range = array_merge([[self::CONDITION_COLUMN_NAME]], array_chunk($range, 1));
$condition = array_merge([[self::CONDITION_COLUMN_NAME]], [[$condition]]);
return DCount::evaluate($range, null, $condition);
}
/**
* COUNTIFS.
*
* Counts the number of cells that contain numbers within the list of arguments
*
* Excel Function:
* COUNTIFS(criteria_range1, criteria1, [criteria_range2, criteria2]…)
*
* @param mixed $args Pairs of Ranges and Criteria
*
* @return int
*/
public static function COUNTIFS(...$args)
{
if (empty($args)) {
return 0;
} elseif (count($args) === 2) {
return self::COUNTIF(...$args);
}
$database = self::buildDatabase(...$args);
$conditions = self::buildConditionSet(...$args);
return DCount::evaluate($database, null, $conditions);
}
/**
* MAXIFS.
*
* Returns the maximum value within a range of cells that contain numbers within the list of arguments
*
* Excel Function:
* MAXIFS(max_range, criteria_range1, criteria1, [criteria_range2, criteria2]…)
*
* @param mixed $args Pairs of Ranges and Criteria
*
* @return null|float|string
*/
public static function MAXIFS(...$args)
{
if (empty($args)) {
return 0.0;
}
$conditions = self::buildConditionSetForValueRange(...$args);
$database = self::buildDatabaseWithValueRange(...$args);
return DMax::evaluate($database, self::VALUE_COLUMN_NAME, $conditions);
}
/**
* MINIFS.
*
* Returns the minimum value within a range of cells that contain numbers within the list of arguments
*
* Excel Function:
* MINIFS(min_range, criteria_range1, criteria1, [criteria_range2, criteria2]…)
*
* @param mixed $args Pairs of Ranges and Criteria
*
* @return null|float|string
*/
public static function MINIFS(...$args)
{
if (empty($args)) {
return 0.0;
}
$conditions = self::buildConditionSetForValueRange(...$args);
$database = self::buildDatabaseWithValueRange(...$args);
return DMin::evaluate($database, self::VALUE_COLUMN_NAME, $conditions);
}
/**
* SUMIF.
*
* Totals the values of cells that contain numbers within the list of arguments
*
* Excel Function:
* SUMIF(range, criteria, [sum_range])
*
* @param mixed $range Data values
* @param mixed $sumRange
* @param mixed $condition
*
* @return float|string
*/
public static function SUMIF($range, $condition, $sumRange = [])
{
$database = self::databaseFromRangeAndValue($range, $sumRange);
$condition = [[self::CONDITION_COLUMN_NAME, self::VALUE_COLUMN_NAME], [$condition, null]];
return DSum::evaluate($database, self::VALUE_COLUMN_NAME, $condition);
}
/**
* SUMIFS.
*
* Counts the number of cells that contain numbers within the list of arguments
*
* Excel Function:
* SUMIFS(average_range, criteria_range1, criteria1, [criteria_range2, criteria2]…)
*
* @param mixed $args Pairs of Ranges and Criteria
*
* @return null|float|string
*/
public static function SUMIFS(...$args)
{
if (empty($args)) {
return 0.0;
} elseif (count($args) === 3) {
return self::SUMIF($args[1], $args[2], $args[0]);
}
$conditions = self::buildConditionSetForValueRange(...$args);
$database = self::buildDatabaseWithValueRange(...$args);
return DSum::evaluate($database, self::VALUE_COLUMN_NAME, $conditions);
}
private static function buildConditionSet(...$args): array
{
$conditions = self::buildConditions(1, ...$args);
return array_map(null, ...$conditions);
}
private static function buildConditionSetForValueRange(...$args): array
{
$conditions = self::buildConditions(2, ...$args);
if (count($conditions) === 1) {
return array_map(
function ($value) {
return [$value];
},
$conditions[0]
);
}
return array_map(null, ...$conditions);
}
private static function buildConditions(int $startOffset, ...$args): array
{
$conditions = [];
$pairCount = 1;
$argumentCount = count($args);
for ($argument = $startOffset; $argument < $argumentCount; $argument += 2) {
$conditions[] = array_merge([sprintf(self::CONDITIONAL_COLUMN_NAME, $pairCount)], [$args[$argument]]);
++$pairCount;
}
return $conditions;
}
private static function buildDatabase(...$args): array
{
$database = [];
return self::buildDataSet(0, $database, ...$args);
}
private static function buildDatabaseWithValueRange(...$args): array
{
$database = [];
$database[] = array_merge(
[self::VALUE_COLUMN_NAME],
Functions::flattenArray($args[0])
);
return self::buildDataSet(1, $database, ...$args);
}
private static function buildDataSet(int $startOffset, array $database, ...$args): array
{
$pairCount = 1;
$argumentCount = count($args);
for ($argument = $startOffset; $argument < $argumentCount; $argument += 2) {
$database[] = array_merge(
[sprintf(self::CONDITIONAL_COLUMN_NAME, $pairCount)],
Functions::flattenArray($args[$argument])
);
++$pairCount;
}
return array_map(null, ...$database);
}
private static function databaseFromRangeAndValue(array $range, array $valueRange = []): array
{
$range = Functions::flattenArray($range);
$valueRange = Functions::flattenArray($valueRange);
if (empty($valueRange)) {
$valueRange = $range;
}
$database = array_map(
null,
array_merge([self::CONDITION_COLUMN_NAME], $range),
array_merge([self::VALUE_COLUMN_NAME], $valueRange)
);
return $database;
}
}
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