<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\TextData;
use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled;
use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
class CaseConvert
{
use ArrayEnabled;
/**
* LOWERCASE.
*
* Converts a string value to upper case.
*
* @param mixed $mixedCaseValue The string value to convert to lower case
* Or can be an array of values
*
* @return array|string
* If an array of values is passed as the argument, then the returned result will also be an array
* with the same dimensions
*/
public static function lower($mixedCaseValue)
{
if (is_array($mixedCaseValue)) {
return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $mixedCaseValue);
}
$mixedCaseValue = Helpers::extractString($mixedCaseValue);
return StringHelper::strToLower($mixedCaseValue);
}
/**
* UPPERCASE.
*
* Converts a string value to upper case.
*
* @param mixed $mixedCaseValue The string value to convert to upper case
* Or can be an array of values
*
* @return array|string
* If an array of values is passed as the argument, then the returned result will also be an array
* with the same dimensions
*/
public static function upper($mixedCaseValue)
{
if (is_array($mixedCaseValue)) {
return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $mixedCaseValue);
}
$mixedCaseValue = Helpers::extractString($mixedCaseValue);
return StringHelper::strToUpper($mixedCaseValue);
}
/**
* PROPERCASE.
*
* Converts a string value to proper or title case.
*
* @param mixed $mixedCaseValue The string value to convert to title case
* Or can be an array of values
*
* @return array|string
* If an array of values is passed as the argument, then the returned result will also be an array
* with the same dimensions
*/
public static function proper($mixedCaseValue)
{
if (is_array($mixedCaseValue)) {
return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $mixedCaseValue);
}
$mixedCaseValue = Helpers::extractString($mixedCaseValue);
return StringHelper::strToTitle($mixedCaseValue);
}
}