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<?php
/**
* Bitrix Framework
* @package bitrix
* @subpackage main
* @copyright 2001-2018 Bitrix
*/
namespace Bitrix\Main\Text;
/**
* String functions
* @package bitrix
* @subpackage main
*/
class StringHelper
{
/**
* Regular uppercase with result cache
*
* @param $str
*
* @return mixed
*/
public static function strtoupper($str)
{
static $cache;
if (empty($cache[$str]))
{
$cache[$str] = mb_strtoupper($str);
}
return $cache[$str];
}
/**
* Changes registry from CamelCase to snake_case
*
* @param $str
*
* @return string
*/
public static function camel2snake($str)
{
return mb_strtolower(preg_replace('/(.)([A-Z])/', '$1_$2', $str));
}
/**
* Changes registry from snake_case or SNAKE_CASE to CamelCase
*
* @param $str
*
* @return mixed
*/
public static function snake2camel($str)
{
$str = str_replace('_', ' ', mb_strtolower($str));
return str_replace(' ', '', ucwords($str));
}
/**
* Compatible with php 8 for nested arrays. Only the first level of the array is processed.
*
* @param mixed $search
* @param mixed $replace
* @param mixed $str
* @return mixed
*/
public static function str_replace($search, $replace, $str)
{
if (is_array($str))
{
foreach ($str as $key => $value)
{
if (is_scalar($value))
{
$str[$key] = str_replace($search, $replace, $value);
}
}
}
else
{
$str = str_replace($search, $replace, $str);
}
return $str;
}
}