StringTool::generateRandomString() - Code Metrics - majiameng/tools - Measure and Improve Code Quality continuously with Scrutinizer

StringTool::generateRandomString() A
last analyzed 2025-08-13 05:48 UTC

↳ Parent: StringTool
Complexity

Conditions	1
Paths	1
Size

Total Lines	3
Code Lines	2
Duplication

Lines	0
Ratio	0 %
Importance

Changes
Metric	Value
cc	1
eloc	2
c	0
b	0
f	0
nc	1
nop	1
dl	0
loc	3
rs	10
<?php
namespace tinymeng\tools;
/**
 * Class 字符串类
 * @package tinymeng\tools
 * @Author: TinyMeng <[email protected]>
 * @Created: 2018/11/26
 */
class StringTool
{
    protected static $snakeCache = [];

    protected static $camelCache = [];

    protected static $studlyCache = [];

    /**
     * 检查字符串中是否包含某些字符串
     * @param string       $haystack
     * @param string|array $needles
     * @return bool
     */
    public static function contains(string $haystack, $needles): bool
    {
        foreach ((array) $needles as $needle) {
            if ('' != $needle && mb_strpos($haystack, $needle) !== false) {
                return true;
            }
        }

        return false;
    }

    /**
     * 检查字符串是否以某些字符串结尾
     *
     * @param  string       $haystack
     * @param  string|array $needles
     * @return bool
     */
    public static function endsWith(string $haystack, $needles): bool
    {
        foreach ((array) $needles as $needle) {
            if ((string) $needle === static::substr($haystack, -static::length($needle))) {
                return true;
            }
        }

        return false;
    }

    /**
     * 检查字符串是否以某些字符串开头
     *
     * @param  string       $haystack
     * @param  string|array $needles
     * @return bool
     */
    public static function startsWith(string $haystack, $needles): bool
    {
        foreach ((array) $needles as $needle) {
            if ('' != $needle && mb_strpos($haystack, $needle) === 0) {
                return true;
            }
        }

        return false;
    }

    /**
     * 获取指定长度的随机字母数字组合的字符串
     *
     * @param  int $length
     * @param  int $type
     * @param  string $addChars
     * @return string
     */
    public static function random(int $length = 6, int $type = null, string $addChars = ''): string
    {
        $str = '';
        switch ($type) {
            case 0:

                $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz' . $addChars;
                break;
            case 1:
                $chars = str_repeat('0123456789', 3);
                break;
            case 2:
                $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' . $addChars;
                break;
            case 3:
                $chars = 'abcdefghijklmnopqrstuvwxyz' . $addChars;
                break;
            case 4:
                $chars = "们以我到他会作时要动国产的一是工就年阶义发成部民可出能方进在了不和有大这主中人上为来分生对于学下级地个用同行面说种过命度革而多子后自社加小机也经力线本电高量长党得实家定深法表着水理化争现所二起政三好十战无农使性前等反体合斗路图把结第里正新开论之物从当两些还天资事队批点育重其思与间内去因件日利相由压员气业代全组数果期导平各基或月毛然如应形想制心样干都向变关问比展那它最及外没看治提五解系林者米群头意只明四道马认次文通但条较克又公孔领军流入接席位情运器并飞原油放立题质指建区验活众很教决特此常石强极土少已根共直团统式转别造切九你取西持总料连任志观调七么山程百报更见必真保热委手改管处己将修支识病象几先老光专什六型具示复安带每东增则完风回南广劳轮科北打积车计给节做务被整联步类集号列温装即毫知轴研单色坚据速防史拉世设达尔场织历花受求传口断况采精金界品判参层止边清至万确究书" . $addChars;
                break;
            default:
                $chars = 'ABCDEFGHIJKMNPQRSTUVWXYZabcdefghijkmnpqrstuvwxyz23456789' . $addChars;
                break;
        }
        if ($length > 10) {
            $chars = $type == 1 ? str_repeat($chars, $length) : str_repeat($chars, 5);
        }
        if ($type != 4) {
            $chars = str_shuffle($chars);
            $str = substr($chars, 0, $length);
        } else {
            for ($i = 0; $i < $length; $i++) {
                $str .= mb_substr($chars, floor(mt_rand(0, mb_strlen($chars, 'utf-8') - 1)), 1);
                $str .= mb_substr($chars, /** @scrutinizer ignore-type */ floor(mt_rand(0, mb_strlen($chars, 'utf-8') - 1)), 1);
            }
        }
        return $str;
    }

    /**
     * 字符串转小写
     *
     * @param  string $value
     * @return string
     */
    public static function lower(string $value): string
    {
        return mb_strtolower($value, 'UTF-8');
    }

    /**
     * 字符串转大写
     *
     * @param  string $value
     * @return string
     */
    public static function upper(string $value): string
    {
        return mb_strtoupper($value, 'UTF-8');
    }

    /**
     * 获取字符串的长度
     *
     * @param  string $value
     * @return int
     */
    public static function length(string $value): int
    {
        return mb_strlen($value);
    }

    /**
     * 截取字符串
     *
     * @param  string   $string
     * @param  int      $start
     * @param  int|null $length
     * @return string
     */
    public static function substr(string $string, int $start, int $length = null): string
    {
        return mb_substr($string, $start, $length, 'UTF-8');
    }

    /**
     * 驼峰转下划线
     *
     * @param  string $value
     * @param  string $delimiter
     * @return string
     */
    public static function snake(string $value, string $delimiter = '_'): string
    {
        $key = $value;

        if (isset(static::$snakeCache[$key][$delimiter])) {
            return static::$snakeCache[$key][$delimiter];
        }

        if (!ctype_lower($value)) {
            $value = preg_replace('/\s+/u', '', ucwords($value));

            $value = static::lower(preg_replace('/(.)(?=[A-Z])/u', '$1' . $delimiter, $value));
        }

        return static::$snakeCache[$key][$delimiter] = $value;
    }

    /**
     * 下划线转驼峰(首字母小写)
     *
     * @param  string $value
     * @return string
     */
    public static function camel(string $value): string
    {
        if (isset(static::$camelCache[$value])) {
            return static::$camelCache[$value];
        }

        return static::$camelCache[$value] = lcfirst(static::studly($value));
    }

    /**
     * 下划线转驼峰(首字母大写)
     *
     * @param  string $value
     * @return string
     */
    public static function studly(string $value): string
    {
        $key = $value;

        if (isset(static::$studlyCache[$key])) {
            return static::$studlyCache[$key];
        }

        $value = ucwords(str_replace(['-', '_'], ' ', $value));

        return static::$studlyCache[$key] = str_replace(' ', '', $value);
    }

    /**
     * 转为首字母大写的标题格式
     *
     * @param  string $value
     * @return string
     */
    public static function title(string $value): string
    {
        return mb_convert_case($value, MB_CASE_TITLE, 'UTF-8');
    }

    /**
     * Function Name: 手写字母大写
     * @param $str
     * @return string
     * @author Tinymeng <[email protected]>
     * @date: 2019/9/26 10:19
     */
    static public function uFirst($str):string{
        return ucfirst(strtolower($str));
    }

    /**
     * Name: 生成随机字符串
     * Author: Tinymeng <[email protected]>
     * @param int $length 字符串长度
     * @return string
     */
    public static function generateRandomString($length = 10):string {
        $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
        return substr(str_shuffle($characters), 0, $length);
    }


    /**
     * 获取唯一设备号
     * @Author: TinyMeng <[email protected]>
     * @param string $namespace
     * @return string
     */
    static public function createChannelId($namespace = ''):string {
        static $guid = '';
        $uid = uniqid("", true);
        $data = $namespace. md5(time() . mt_rand(1,1000000)).uniqid();
        $hash = strtoupper(hash('ripemd128', $uid . $guid . md5($data)));
        $guid = substr($hash, 0, 8) .
            '-' .
            substr($hash, 8, 4) .
            '-' .
            substr($hash, 12, 4) .
            '-' .
            substr($hash, 16, 4) .
            '-' .
            substr($hash, 20, 12);
        return $guid;
    }

    /**
     * 获取md5中16位小写
     * 实现java的 MD516.Bit16
     * @Author: TinyMeng <[email protected]>
     * @param $str
     * @return string
     */
    static public function md5Bit16($str):string {
        return strtoupper(substr(md5($str),8,16));
    }

    /**
     * 获取时间戳(13位精确到豪妙)
     * @Author: TinyMeng <[email protected]>
     * @param null|int $time
     * @return int
     */
    static public function millisecond($time = null) :int{
        if(empty($time)){
            list($msec, $sec) = explode(' ', microtime());
            $millisecond = (int)sprintf('%.0f', (floatval($msec) + floatval($sec)) * 1000);
        }elseif(is_numeric($time) && strlen((string)$time)==10){
            $millisecond = (string)$time."000";
        }else{
            $millisecond = strtotime($time)."000";
        }
        return (int)$millisecond;
    }

    /**
     * Name: 是否包含中文
     * Author: Tinymeng <[email protected]>
     * @param string $string
     * @return bool
     */
    public static function isContainChinese($string=''):bool {
        $result = preg_match('/[\x{4e00}-\x{9fa5}]/u', $string);
        return $result == 0 ? false : true;
    }

    /**
     * Name: 是否全是中文
     * Author: Tinymeng <[email protected]>
     * @param string $string
     * @return bool
     */
    public static function isAllChinese($string=''):bool {
        $result = preg_match('/^[\x{4e00}-\x{9fa5}]+$/u', $string);
        return $result == 0 ? false : true;
    }

    /**
     * 判断手机号码
     * Author : MYL <[email protected]>
     * Updater：
     * @param string $string
     * @return bool
     */
    public static function isMobile($string=''):bool {
        if (!preg_match("/(^1[3|4|5|7|8][0-9]{9}$)/", $string)) {
            return false;
        }
        return true;
    }

    /**
     * Description:  科学计数法转化正常数值输出
     * Author: JiaMeng <[email protected]>
     * Updater:
     * @param string $num 科学计数法字符串  如 2.1E-5
     * @param int $double   小数点保留位数 默认3位
     * @return string
     */
    public static function sctonum($num, $double = 3){
        if(false !== stripos($num, "e")){
            $a = explode("e",strtolower($num));
            return bcmul($a[0], bcpow(10, $a[1], $double), $double);
        }
        return $num;
    }

    /**
     * Name: 自动转换字符集 支持数组转换
     * Author: Tinymeng <[email protected]>
     * @param $string
     * @param string $from
     * @param string $to
     * @return array|false|string|string[]|null
     */
    public static function autoCharset($string, $from='gbk', $to='utf-8') {
        $from = strtoupper($from) == 'UTF8' ? 'utf-8' : $from;
        $to = strtoupper($to) == 'UTF8' ? 'utf-8' : $to;
        if (strtoupper($from) === strtoupper($to) || empty($string) || (is_scalar($string) && !is_string($string))) {
            //如果编码相同或者非字符串标量则不转换
            return $string;
        }
        if (is_string($string)) {
            if (function_exists('mb_convert_encoding')) {
                return mb_convert_encoding($string, $to, $from);
            } elseif (function_exists('iconv')) {
                return iconv($from, $to, $string);
            } else {
                return $string;
            }
        } elseif (is_array($string)) {
            foreach ($string as $key => $val) {
                $_key = self::autoCharset($key, $from, $to);
                $string[$_key] = self::autoCharset($val, $from, $to);
                if ($key != $_key)
                    unset($string[$key]);
            }
            return $string;
        }
        else {
            return $string;
        }
    }

    /**
     * Description:  过滤html里a标签
     * Author: song <[email protected]>
     * Updater:
     * @param $html
     * @return string
     */
    public static function filterATag($html=''):string {
        return preg_replace("#<a[^>]*>(.*?)</a>#is", "$1", $html);
    }

    /**
     * Description:  删除html里a标签及内容
     * Author: song <[email protected]>
     * Updater:
     * @param $html
     * @return string
     */
    public static function deleteATag($html=''):string {
        return preg_replace("#<a[^>]*>(.*?)</a>#is", "", $html);
    }

    /**
     * Description:  时间转换
     * Author: JiaMeng <[email protected]>
     * Updater:
     * @param string $date 时间
     * @param bool $is_timestamp   是否是时间戳
     * @return string
     */
    public static function getTime($date,$is_timestamp=false):string {
        if($is_timestamp === true){
            $time = $date;
        }else{
            $time = strtotime($date);//时间转换为时间戳
        }

        if($time >= time()){
            return '刚刚';
        }
        $seconds = time() - $time;
        if($seconds <= 60){
            return '刚刚';
        }
        $minutes = intval($seconds / 60);
        if($minutes <= 60){
            return $minutes.'分钟前';
        }
        $hours = intval($minutes / 60);
        if($hours <= 24){
            return $hours.'小时前';
        }
        $days = intval($hours / 24);
        if($days <= 3){
            return $days.'天前';
        }
        if($days <= 365){
            return date('m-d',/** @scrutinizer ignore-type */ $time);
        }
        return date('Y-m-d',$time);
        return date('Y-m-d',/** @scrutinizer ignore-type */ $time);
    }

    /**
     * Name: 压缩html代码
     * Author: Tinymeng <[email protected]>
     * @param string $html_source
     * @return string
     */
    static public function compressHtml($html_source):string {
        $chunks   = preg_split('/(<!--<nocompress>-->.*?<!--<\/nocompress>-->|<nocompress>.*?<\/nocompress>|<pre.*?\/pre>|<textarea.*?\/textarea>|<script.*?\/script>)/msi', $html_source, -1, PREG_SPLIT_DELIM_CAPTURE);
        $compress = '';
        foreach ($chunks as $c) {
            if (strtolower(substr($c, 0, 19)) == '<!--<nocompress>-->') {
                $c        = substr($c, 19, strlen($c) - 19 - 20);
                $compress .= $c;
                continue;
            } elseif (strtolower(substr($c, 0, 12)) == '<nocompress>') {
                $c        = substr($c, 12, strlen($c) - 12 - 13);
                $compress .= $c;
                continue;
            } elseif (strtolower(substr($c, 0, 4)) == '<pre' || strtolower(substr($c, 0, 9)) == '<textarea') {
                $compress .= $c;
                continue;
            } elseif (strtolower(substr($c, 0, 7)) == '<script' && strpos($c, '//') > 0 && (strpos($c, "\r") !== false || strpos($c, "\n") !== false)) { // JS代码，包含“//”注释的，单行代码不处理
                $tmps = preg_split('/(\r|\n)/ms', $c, -1, PREG_SPLIT_NO_EMPTY);
                $c    = '';
                foreach ($tmps as $tmp) {
                    if (strpos($tmp, '//') !== false) { // 对含有“//”的行做处理
                        if (substr(trim($tmp), 0, 2) == '//') { // 开头是“//”的就是注释
                            continue;
                        }
                        $chars   = preg_split('//', $tmp, -1, PREG_SPLIT_NO_EMPTY);
                        $is_quot = $is_apos = false;
                        foreach ($chars as $key => $char) {
                            if ($char == '"' && !$is_apos && $key > 0 && $chars[$key - 1] != '\\') {
                                $is_quot = !$is_quot;

                            } elseif ($char == '\'' && !$is_quot && $key > 0 && $chars[$key - 1] != '\\') {
                                $is_apos = !$is_apos;
                            } elseif ($char == '/' && $chars[$key + 1] == '/' && !$is_quot && !$is_apos) {
                                $tmp = substr($tmp, 0, $key); // 不是字符串内的就是注释
                                break;
                            }
                        }
                    }
                    $c .= $tmp;
                }
            }
            $c = preg_replace('/[\\n\\r\\t]+/', ' ', $c); // 清除换行符，清除制表符
            $c = preg_replace('/\\s{2,}/', ' ', $c); // 清除额外的空格
            $c = preg_replace('/>\\s</', '> <', $c); // 清除标签间的空格
            $c = preg_replace('/\\/\\*.*?\\*\\//i', '', $c); // 清除 CSS & JS 的注释
            $c = preg_replace('/<!--[^!]*-->/', '', $c); // 清除 HTML 的注释
            $compress .= $c;
        }
        return $compress;
    }

    /**
     * Description:  html标签替换成特定小程序标签
     * Author: JiaMeng <[email protected]>
     * Updater:
     * @param string $content
     * @return mixed
     */
    static public function htmlReplaceXcx(string $content):string {
        $content = str_replace("\r\n","",$content);//出除回车和换行符
        $content = preg_replace("/style=\".*?\"/si",'',$content);//style样式
        $content = preg_replace(["/<strong.*?>/si", "/<\/strong>/si"],['<text class="wx-strong">','</text>'],$content);//strong
        $content = preg_replace(["/<p.*?>/si", "/<\/p>/si"],['<view class="wx-p">','</view>'],$content);//p
        $content = preg_replace(["/<a.*?>/si", "/<\/a>/si"],['<text class="wx-a">','</text>'],$content);//a
        $content = preg_replace(["/<span.*?>/si", "/<\/span>/si"],['<text class="wx-span">','</text>'],$content);//span
        $content = preg_replace(["/<h[1-6].*?>/si", "/<\/h[1-6]>/si"],['<view class="wx-h">','</view>'],$content);//h
        $content = preg_replace("/<img.*?/si",'<image class="wx-img"',$content);//img
        return $content;
    }

    /**
     * Description:  html P标签替换成特定Span标签(安卓app使用)
     * Author: JiaMeng <[email protected]>
     * Updater:
     * @param string $content
     * @return string
     */
    static public function pReplaceSpan(string $content):string {
        $content = str_replace(["\r","\n","\t"],'',$content);
        $content = preg_replace(["/<p/si", "/<\/p>/si"],['<span','</span><br>'],$content);//p
        return $content;
    }

    /**
     * Description:  过滤标点符号
     * @author: JiaMeng <[email protected]>
     * Updater:
     * @param  string $keyword
     * @return string
     */
    static public function filterPunctuation($keyword){
        $keyword = str_replace(["\r\n", "\r", "\n"," ","　"], "", trim($keyword));//删除空格
        $keyword = preg_replace('# #','',$keyword);
        $keyword = preg_replace("/[ '.,:;*?~`!@#$%^&+=)(<>{}]|\]|\[|\/|\\\|\"|\|/",'',$keyword);
        return $keyword;
    }

    /**
     * Description:  过滤html标签
     * @author: JiaMeng <[email protected]>
     * Updater:
     * @param $content
     * @param string $allowable_tags
     * @return string
     */
    static public function stripTags($content,$allowable_tags = '<font>'){
        $content = strip_tags($content,$allowable_tags);//替换标签
        $content = str_replace(["\r\n", "\r", "\n","　"], "", trim($content));//删除空格
        return $content;
    }

}
majiameng / tools

StringTool::generateRandomString() A last analyzed 2025-08-13 05:48 UTC

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StringTool::generateRandomString() A
last analyzed 2025-08-13 05:48 UTC
