<?php
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namespace PhpOffice\PhpSpreadsheet\Calculation\Statistical;
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use PhpOffice\PhpSpreadsheet\Calculation\Exception as CalcException;
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use PhpOffice\PhpSpreadsheet\Calculation\Functions;
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class Counts extends AggregateBase
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{
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/**
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* COUNT.
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*
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* Counts the number of cells that contain numbers within the list of arguments
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*
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* Excel Function:
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* COUNT(value1[,value2[, ...]])
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*
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* @param mixed ...$args Data values
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*/
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public static function COUNT(mixed ...$args): int
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{
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$returnValue = 0;
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// Loop through arguments
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$aArgs = Functions::flattenArrayIndexed($args);
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foreach ($aArgs as $k => $arg) {
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$arg = self::testAcceptedBoolean($arg, $k);
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// Is it a numeric value?
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// Strings containing numeric values are only counted if they are string literals (not cell values)
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// and then only in MS Excel and in Open Office, not in Gnumeric
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if (self::isAcceptedCountable($arg, $k, true)) {
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++$returnValue;
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}
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}
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return $returnValue;
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}
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/**
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* COUNTA.
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*
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* Counts the number of cells that are not empty within the list of arguments
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*
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* Excel Function:
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* COUNTA(value1[,value2[, ...]])
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*
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* @param mixed ...$args Data values
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*/
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public static function COUNTA(mixed ...$args): int
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{
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$returnValue = 0;
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// Loop through arguments
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$aArgs = Functions::flattenArrayIndexed($args);
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foreach ($aArgs as $k => $arg) {
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// Nulls are counted if literals, but not if cell values
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if ($arg !== null || (!Functions::isCellValue($k))) {
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++$returnValue;
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}
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}
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return $returnValue;
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}
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/**
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* COUNTBLANK.
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*
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* Counts the number of empty cells within the list of arguments
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*
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* Excel Function:
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* COUNTBLANK(value1[,value2[, ...]])
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*
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* @param mixed $range Data values
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*/
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public static function COUNTBLANK(mixed $range): int
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{
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if ($range === null) {
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return 1;
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}
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if (!is_array($range) || array_key_exists(0, $range)) {
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throw new CalcException('Must specify range of cells, not any kind of literal');
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}
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$returnValue = 0;
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// Loop through arguments
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$aArgs = Functions::flattenArray($range);
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foreach ($aArgs as $arg) {
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// Is it a blank cell?
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if (($arg === null) || ((is_string($arg)) && ($arg == ''))) {
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++$returnValue;
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}
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}
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return $returnValue;
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}
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}
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