110 lines
2.8 KiB
PHP
110 lines
2.8 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Fastknife\Utils;
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class RandomUtils
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{
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/**
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* 获取随机数
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* @param $min
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* @param $max
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* @return int
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*/
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public static function getRandomInt($min, $max): int
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{
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try {
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return random_int(intval($min), intval($max));
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}catch (\Exception $e){
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return mt_rand($min, $max);
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}
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}
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/**
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* 随机获取眼色值
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* @return array
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*/
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public static function getRandomColor(): array
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{
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return [self::getRandomInt(1, 255), self::getRandomInt(1, 255), self::getRandomInt(1, 255)];
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}
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/**
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* 随机获取角度
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* @param int $start
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* @param int $end
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* @return int
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*/
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public static function getRandomAngle(int $start = -45, int $end = 45): int
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{
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return self::getRandomInt($start, $end);
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}
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/**
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* 随机获取汉字
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* @param $num int 生成汉字的数量
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* @return array
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*/
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public static function getRandomChar(int $num): array
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{
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$b = [];
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for ($i=0; $i<$num; $i++) {
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// 使用chr()函数拼接双字节汉字，前一个chr()为高位字节，后一个为低位字节
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$a = chr(self::getRandomInt(0xB0,0xD0)).chr(self::getRandomInt(0xA1, 0xF0));
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// 转码
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$h = iconv('GB2312', 'UTF-8', $a);
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if(!in_array($h, $b)){
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$b[] = $h;
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}else{
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$i--; //去重
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}
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}
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return $b;
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}
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/**
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* 类似java一样的uuid
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* @param string $prefix
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* @return string
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*/
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public static function getUUID(string $prefix = ''): string
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{
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$chars = md5(uniqid((string) self::getRandomInt(1, 100), true));
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$uuid = substr($chars,0,8) . '-';
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$uuid .= substr($chars,8,4) . '-';
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$uuid .= substr($chars,12,4) . '-';
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$uuid .= substr($chars,16,4) . '-';
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$uuid .= substr($chars,20,12);
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return $prefix . $uuid;
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}
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/**
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* 获取随机字符串编码
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* @param integer $length 字符串长度
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* @param integer $type 字符串类型(1纯数字,2纯字母,3数字字母)
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* @return string
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*/
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public static function getRandomCode(int $length = 10, int $type = 1): string
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{
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$numbs = '0123456789';
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$chars = "abcdefghilkmnopqrstuvwxyz";
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$maps = '';
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if ($type === 1){
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$maps = $numbs;
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}
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if ($type === 2){
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$maps = $chars;
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}
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if ($type === 3){
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$maps = "{$numbs}{$chars}";
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}
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$string = $maps[self::getRandomInt(1, strlen($maps) - 1)];
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while (strlen($string) < $length) {
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$string .= $maps[self::getRandomInt(0, strlen($maps) - 1)];
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}
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return $string;
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}
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}
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