上代码，不逼逼了。

控制器里访问markzip就是

内外一个类

<?php
// +----------------------------------------------------------------------
// | 压缩解压类
// +----------------------------------------------------------------------
// | Copyright (c) 2019-11-06 www.jvbaopeng.com
// +----------------------------------------------------------------------
// | Author: 邓继松 <615276057@qq.com>
// +-----------------------------------------------
namespace app\admin\controller;
use think\Controller;



class Zip extends Controller {

private $ctrl_dir = array();
private $datasec = array();

/**********************************************************
             * 压缩部分
*/
// ------------------------------------------------------ //
// #遍历指定文件夹
//
// $archive  = new PHPZip();
// $filelist = $archive->visitFile(文件夹路径);
// print "当前文件夹的文件:<p>\r\n";
// foreach($filelist as $file)
//     printf("%s<br>\r\n", $file);
// ------------------------------------------------------ //
var $fileList = array();
public function visitFile($path) {
    global $fileList;
    $path = str_replace("\\", "/", $path);
    $fdir = dir($path);

    while (($file = $fdir->read()) !== false) {
        if ($file == '.' || $file == '..') {continue;}

        $pathSub = preg_replace("*/{2,}*", "/", $path . "/" . $file); // 替换多个反斜杠
        $fileList[] = is_dir($pathSub) ? $pathSub . "/" : $pathSub;
        if (is_dir($pathSub)) {$this->visitFile($pathSub);}
    }
    $fdir->close();
    return $fileList;
}

private function unix2DosTime($unixtime = 0) {
    $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);

    if ($timearray['year'] < 1980) {
        $timearray['year'] = 1980;
        $timearray['mon'] = 1;
        $timearray['mday'] = 1;
        $timearray['hours'] = 0;
        $timearray['minutes'] = 0;
        $timearray['seconds'] = 0;
    }

    return (($timearray['year'] - 1980) << 25)
     | ($timearray['mon'] << 21)
     | ($timearray['mday'] << 16)
     | ($timearray['hours'] << 11)
     | ($timearray['minutes'] << 5)
     | ($timearray['seconds'] >> 1);
}

var $old_offset = 0;
private function addFile($data, $filename, $time = 0) {
    $filename = str_replace('\\', '/', $filename);

    $dtime = dechex($this->unix2DosTime($time));
    $hexdtime = '\x' . $dtime[6] . $dtime[7]
        . '\x' . $dtime[4] . $dtime[5]
        . '\x' . $dtime[2] . $dtime[3]
        . '\x' . $dtime[0] . $dtime[1];
    eval('$hexdtime = "' . $hexdtime . '";');

    $fr = "\x50\x4b\x03\x04";
    $fr .= "\x14\x00";
    $fr .= "\x00\x00";
    $fr .= "\x08\x00";
    $fr .= $hexdtime;
    $unc_len = strlen($data);
    $crc = crc32($data);
    $zdata = gzcompress($data);
    $c_len = strlen($zdata);
    $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
    $fr .= pack('V', $crc);
    $fr .= pack('V', $c_len);
    $fr .= pack('V', $unc_len);
    $fr .= pack('v', strlen($filename));
    $fr .= pack('v', 0);
    $fr .= $filename;

    $fr .= $zdata;

    $fr .= pack('V', $crc);
    $fr .= pack('V', $c_len);
    $fr .= pack('V', $unc_len);

    $this->datasec[] = $fr;
    $new_offset = strlen(implode('', $this->datasec));

    $cdrec = "\x50\x4b\x01\x02";
    $cdrec .= "\x00\x00";
    $cdrec .= "\x14\x00";
    $cdrec .= "\x00\x00";
    $cdrec .= "\x08\x00";
    $cdrec .= $hexdtime;
    $cdrec .= pack('V', $crc);
    $cdrec .= pack('V', $c_len);
    $cdrec .= pack('V', $unc_len);
    $cdrec .= pack('v', strlen($filename));
    $cdrec .= pack('v', 0);
    $cdrec .= pack('v', 0);
    $cdrec .= pack('v', 0);
    $cdrec .= pack('v', 0);
    $cdrec .= pack('V', 32);

    $cdrec .= pack('V', $this->old_offset);
    $this->old_offset = $new_offset;

    $cdrec .= $filename;
    $this->ctrl_dir[] = $cdrec;
}

var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
private function file() {
    $data = implode('', $this->datasec);
    $ctrldir = implode('', $this->ctrl_dir);

    return $data
    . $ctrldir
    . $this->eof_ctrl_dir
    . pack('v', sizeof($this->ctrl_dir))
    . pack('v', sizeof($this->ctrl_dir))
    . pack('V', strlen($ctrldir))
    . pack('V', strlen($data))
        . "\x00\x00";
}

// ------------------------------------------------------ //
// #压缩到服务器
//
// $archive = new PHPZip();
// $archive->Zip("需压缩的文件所在目录", "ZIP压缩文件名");
// ------------------------------------------------------ //
public function Zip($dir, $saveName) {
    if (@!function_exists('gzcompress')) {return;}

    ob_end_clean();
    $filelist = $this->visitFile($dir);
    if (count($filelist) == 0) {return;}

    foreach ($filelist as $file) {
        if (!file_exists($file) || !is_file($file)) {continue;}

        $fd = fopen($file, "rb");
        $content = @fread($fd, filesize($file));
        fclose($fd);

        // 1.删除$dir的字符(./folder/file.txt删除./folder/)
        // 2.如果存在/就删除(/file.txt删除/)
        $file = substr($file, strlen($dir));
        if (substr($file, 0, 1) == "\\" || substr($file, 0, 1) == "/") {$file = substr($file, 1);}

        $this->addFile($content, $file);
    }
    $out = $this->file();

    $fp = fopen($saveName, "wb");
    fwrite($fp, $out, strlen($out));
    fclose($fp);
}

// ------------------------------------------------------ //
// #压缩并直接下载
//
// $archive = new PHPZip();
// $archive->ZipAndDownload("需压缩的文件所在目录");
// ------------------------------------------------------ //
public function ZipAndDownload($dir, $newname) {
    if (@!function_exists('gzcompress')) {return;}

    @ob_end_clean();
    $filelist = $this->visitFile($dir);

    if (count($filelist) == 0) {return;}

    foreach ($filelist as $file) {
        if (!file_exists($file) || !is_file($file)) {continue;}

        $fd = fopen($file, "rb");
        $content = @fread($fd, filesize($file));
        fclose($fd);

        // 1.删除$dir的字符(./folder/file.txt删除./folder/)
        // 2.如果存在/就删除(/file.txt删除/)
        $file = substr($file, strlen($dir));

        if (substr($file, 0, 1) == "\\" || substr($file, 0, 1) == "/") {$file = substr($file, 1);}
        $file = iconv("UTF-8", "GBK//IGNORE", $file);
        $this->addFile($content, $file);
    }
    // die();
    $out = $this->file();

    @header('Content-Encoding: none');
    @header('Content-Type: application/zip');
    @header('Content-Disposition: attachment ; filename=' . $newname . '.zip');
    @header('Pragma: no-cache');
    @header('Expires: 0');
    print($out);
}

/**********************************************************
             * 解压部分
*/
// ------------------------------------------------------ //
// ReadCentralDir($zip, $zipfile)
// $zip是经过@fopen($zipfile, 'rb')打开的
// $zipfile是zip文件的路径
// ------------------------------------------------------ //
private function ReadCentralDir($zip, $zipfile) {
    $size = filesize($zipfile);
    $max_size = ($size < 277) ? $size : 277;

    @fseek($zip, $size - $max_size);
    $pos = ftell($zip);
    $bytes = 0x00000000;

    while ($pos < $size) {
        $byte = @fread($zip, 1);
        $bytes = ($bytes << 8) | Ord($byte);
        $pos++;
        if ($bytes == 0x504b0506) {break;}
    }

    $data = unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size', fread($zip, 18));

    $centd['comment'] = ($data['comment_size'] != 0) ? fread($zip, $data['comment_size']) : ''; // 注释
    $centd['entries'] = $data['entries'];
    $centd['disk_entries'] = $data['disk_entries'];
    $centd['offset'] = $data['offset'];
    $centd['disk_start'] = $data['disk_start'];
    $centd['size'] = $data['size'];
    $centd['disk'] = $data['disk'];
    return $centd;
}

private function ReadCentralFileHeaders($zip) {
    $binary_data = fread($zip, 46);
    $header = unpack('vchkid/vid/vversion/vversion_extracted/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len/vcomment_len/vdisk/vinternal/Vexternal/Voffset', $binary_data);

    $header['filename'] = ($header['filename_len'] != 0) ? fread($zip, $header['filename_len']) : '';
    $header['extra'] = ($header['extra_len'] != 0) ? fread($zip, $header['extra_len']) : '';
    $header['comment'] = ($header['comment_len'] != 0) ? fread($zip, $header['comment_len']) : '';

    if ($header['mdate'] && $header['mtime']) {
        $hour = ($header['mtime'] & 0xF800) >> 11;
        $minute = ($header['mtime'] & 0x07E0) >> 5;
        $seconde = ($header['mtime'] & 0x001F) * 2;
        $year = (($header['mdate'] & 0xFE00) >> 9) + 1980;
        $month = ($header['mdate'] & 0x01E0) >> 5;
        $day = $header['mdate'] & 0x001F;
        $header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
    } else {
        $header['mtime'] = time();
    }
    $header['stored_filename'] = $header['filename'];
    $header['status'] = 'ok';
    if (substr($header['filename'], -1) == '/') {$header['external'] = 0x41FF0010;} // 判断是否文件夹
    return $header;
}

private function ReadFileHeader($zip) {
    $binary_data = fread($zip, 30);
    $data = unpack('vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len', $binary_data);

    $header['filename'] = fread($zip, $data['filename_len']);
    $header['extra'] = ($data['extra_len'] != 0) ? fread($zip, $data['extra_len']) : '';
    $header['compression'] = $data['compression'];
    $header['size'] = $data['size'];
    $header['compressed_size'] = $data['compressed_size'];
    $header['crc'] = $data['crc'];
    $header['flag'] = $data['flag'];
    $header['mdate'] = $data['mdate'];
    $header['mtime'] = $data['mtime'];

    if ($header['mdate'] && $header['mtime']) {
        $hour = ($header['mtime'] & 0xF800) >> 11;
        $minute = ($header['mtime'] & 0x07E0) >> 5;
        $seconde = ($header['mtime'] & 0x001F) * 2;
        $year = (($header['mdate'] & 0xFE00) >> 9) + 1980;
        $month = ($header['mdate'] & 0x01E0) >> 5;
        $day = $header['mdate'] & 0x001F;
        $header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
    } else {
        $header['mtime'] = time();
    }

    $header['stored_filename'] = $header['filename'];
    $header['status'] = "ok";
    return $header;
}

private function ExtractFile($header, $to, $zip) {
    $header = $this->readfileheader($zip);

    if (substr($to, -1) != "/") {$to .= "/";}
    if (!@is_dir($to)) {@mkdir($to, 0777);}

    $pth = explode("/", dirname($header['filename']));
    for ($i = 0;isset($pth[$i]); $i++) {
        if (!$pth[$i]) {continue;}
        $pthss .= $pth[$i] . "/";
        if (!is_dir($to . $pthss)) {@mkdir($to . $pthss, 0777);}
    }

    if (!($header['external'] == 0x41FF0010) && !($header['external'] == 16)) {
        if ($header['compression'] == 0) {
            $fp = @fopen($to . $header['filename'], 'wb');
            if (!$fp) {return (-1);}
            $size = $header['compressed_size'];

            while ($size != 0) {
                $read_size = ($size < 2048 ? $size : 2048);
                $buffer = fread($zip, $read_size);
                $binary_data = pack('a' . $read_size, $buffer);
                @fwrite($fp, $binary_data, $read_size);
                $size -= $read_size;
            }
            fclose($fp);
            touch($to . $header['filename'], $header['mtime']);

        } else {

            $fp = @fopen($to . $header['filename'] . '.gz', 'wb');
            if (!$fp) {return (-1);}
            $binary_data = pack('va1a1Va1a1', 0x8b1f, Chr($header['compression']), Chr(0x00), time(), Chr(0x00), Chr(3));

            fwrite($fp, $binary_data, 10);
            $size = $header['compressed_size'];

            while ($size != 0) {
                $read_size = ($size < 1024 ? $size : 1024);
                $buffer = fread($zip, $read_size);
                $binary_data = pack('a' . $read_size, $buffer);
                @fwrite($fp, $binary_data, $read_size);
                $size -= $read_size;
            }

            $binary_data = pack('VV', $header['crc'], $header['size']);
            fwrite($fp, $binary_data, 8);
            fclose($fp);

            $gzp = @gzopen($to . $header['filename'] . '.gz', 'rb') or die("Cette archive est compress!");

            if (!$gzp) {return (-2);}
            $fp = @fopen($to . $header['filename'], 'wb');
            if (!$fp) {return (-1);}
            $size = $header['size'];

            while ($size != 0) {
                $read_size = ($size < 2048 ? $size : 2048);
                $buffer = gzread($gzp, $read_size);
                $binary_data = pack('a' . $read_size, $buffer);
                @fwrite($fp, $binary_data, $read_size);
                $size -= $read_size;
            }
            fclose($fp);
            gzclose($gzp);

            touch($to . $header['filename'], $header['mtime']);
            @unlink($to . $header['filename'] . '.gz');
        }
    }
    return true;
}

// ------------------------------------------------------ //
// #解压文件
//
// $archive   = new PHPZip();
// $zipfile   = "ZIP压缩文件名";
// $savepath  = "解压缩目录名";
// $zipfile   = $unzipfile;
// $savepath  = $unziptarget;
// $array     = $archive->GetZipInnerFilesInfo($zipfile);
// $filecount = 0;
// $dircount  = 0;
// $failfiles = array();
// set_time_limit(0);  // 修改为不限制超时时间(默认为30秒)
//
// for($i=0; $i<count($array); $i++) {
//     if($array[$i][folder] == 0){
//         if($archive->unZip($zipfile, $savepath, $i) > 0){
//             $filecount++;
//         }else{
//             $failfiles[] = $array[$i][filename];
//         }
//     }else{
//         $dircount++;
//     }
// }
// set_time_limit(30);
//printf("文件夹:%d    解压文件:%d    失败:%d<br>\r\n", $dircount, $filecount, count($failfiles));
//if(count($failfiles) > 0){
//    foreach($failfiles as $file){
//        printf("·%s<br>\r\n", $file);
//    }
//}
// ------------------------------------------------------ //
public function unZip($zipfile, $to, $index = Array(-1)) {
    $ok = 0;
    $zip = @fopen($zipfile, 'rb');
    if (!$zip) {return (-1);}

    $cdir = $this->ReadCentralDir($zip, $zipfile);
    $pos_entry = $cdir['offset'];

    if (!is_array($index)) {$index = array($index);}
    for ($i = 0; $index[$i]; $i++) {
        if (intval($index[$i]) != $index[$i] || $index[$i] > $cdir['entries']) {
            return (-1);
        }
    }

    for ($i = 0; $i < $cdir['entries']; $i++) {
        @fseek($zip, $pos_entry);
        $header = $this->ReadCentralFileHeaders($zip);
        $header['index'] = $i;
        $pos_entry = ftell($zip);
        @rewind($zip);
        fseek($zip, $header['offset']);
        if (in_array("-1", $index) || in_array($i, $index)) {
            $stat[$header['filename']] = $this->ExtractFile($header, $to, $zip);
        }
    }

    fclose($zip);
    return $stat;
}

/**********************************************************
             * 其它部分
*/
// ------------------------------------------------------ //
// #获取被压缩文件的信息
//
// $archive = new PHPZip();
// $array = $archive->GetZipInnerFilesInfo(ZIP压缩文件名);
// for($i=0; $i<count($array); $i++) {
//     printf("<b>·%s</b><br>\r\n", $array[$i][filename]);
//     foreach($array[$i] as $key => $value)
//         printf("%s => %s<br>\r\n", $key, $value);
//     print "\r\n<p>------------------------------------<p>\r\n\r\n";
// }
// ------------------------------------------------------ //
public function GetZipInnerFilesInfo($zipfile) {
    $zip = @fopen($zipfile, 'rb');
    if (!$zip) {return (0);}
    $centd = $this->ReadCentralDir($zip, $zipfile);

    @rewind($zip);
    @fseek($zip, $centd['offset']);
    $ret = array();

    for ($i = 0; $i < $centd['entries']; $i++) {
        $header = $this->ReadCentralFileHeaders($zip);
        $header['index'] = $i;
        $info = array(
            'filename' => $header['filename'], // 文件名
            'stored_filename' => $header['stored_filename'], // 压缩后文件名
            'size' => $header['size'], // 大小
            'compressed_size' => $header['compressed_size'], // 压缩后大小
            'crc' => strtoupper(dechex($header['crc'])), // CRC32
            'mtime' => date("Y-m-d H:i:s", $header['mtime']), // 文件修改时间
            'comment' => $header['comment'], // 注释
            'folder' => ($header['external'] == 0x41FF0010 || $header['external'] == 16) ? 1 : 0, // 是否为文件夹
            'index' => $header['index'], // 文件索引
            'status' => $header['status'], // 状态
        );
        $ret[] = $info;
        unset($header);
    }
    fclose($zip);
    return $ret;
}

// ------------------------------------------------------ //
// #获取压缩文件的注释
//
// $archive = new PHPZip();
// echo $archive->GetZipComment(ZIP压缩文件名);
// ------------------------------------------------------ //
public function GetZipComment($zipfile) {
    $zip = @fopen($zipfile, 'rb');
    if (!$zip) {return (0);}
    $centd = $this->ReadCentralDir($zip, $zipfile);
    fclose($zip);
    return $centd[comment];
}
}