<?php
namespace app\utils;

class StringsUtil
{
    /**
     * @param $array
     * @return mixed
     */
    public static function changeKeyToHump($array)
    {
        foreach ($array as $k => $v) {
            if (is_array($v)) {
                $v = self::changeKeyToHump($v);
            }
            $newKey = self::lineToHump($k);
            unset($array[$k]);
            $array[$newKey] = $v;
        }
        return $array;
    }

    /**
     * 下划线或-转成驼峰
     * @param  string   $string
     * @param  boolean  $lcfirst
     * @param  boolean  $includeDash
     * @return string
     */
    public static function lineToHump($string, $lcfirst = true, $includeDash = true)
    {
        $tmp = '';
        $string = $includeDash ? strtr($string, '-', '_') : $string;
        if (strstr($string, '_') !== false) {
            $arr = explode('_', $string);
            foreach ($arr as $value) {
                $tmp .= ucfirst($value);
            }
            $string = $tmp;
        }

        $string = $lcfirst ? lcfirst($string) : ucfirst($string);
        return $string;
    }

    public static function uuid()
    {
        return str_replace('.', '', microtime(true)) . mt_rand(10000, 99999);
    }
}