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