ZIP archive cannot close after new zip in foreach (PHP) - php

Question

PHP-Version: 8
My script gets pathes to adding the files in a zip. After an individual size, the zip closed and a new one opened for adding files. All works, but when the second file should closed, i'll get an error:
Fatal error: Uncaught ValueError: Invalid or uninitialized Zip object in...
Everything is ok in my log file. The first ZIP is created, files are added and closed. Then the 2nd ZIP is created, files are added and then the ZIP should be closed again. The error comes when closing the second file.
Thats my script:
/**
* check and process file list
**/
## log
$log->logging($lf, "Check backuppathes list.");
## check file list
if(!empty($fullfilelist)) {
## log
$log->logging($lf, "Setting zip parameter.");
## zip counter
$zc = 0;
## zip size
$zs = 0;
## zip path
$zp = (addslashes(__DIR__))."\\zip\\";
## zipfile
$zipfile = $zp.date("Y-m-d")."-".str_pad($zc, 3, "0", STR_PAD_LEFT).".zip";
## log
$log->logging($lf, "Create zip file: ".$zipfile);
## start zip file
$myzip[$zc] = new mfzip;
$myzip[$zc]->newzip($zipfile);
## check new zip file
if($myzip[$zc]->result == 200) {
## log
$log->logging($lf, "Zip ".$zipfile." starts! Set password...");
## set zip password
$myzip[$zc]->passzip($CFG['zippass']);
## check setting
if($myzip[$zc]->result == 200) {
## log
$log->logging($lf, "Password set! Process pathes...");
## process file list
foreach($fullfilelist as $ffl) {
## local file
$l = $ffl;
## log
$log->logging($lf, "Add local file: ".$l);
## file in zip
$r = substr($ffl, 3, 10000000000);
## checking file reading
if(is_readable($l)) {
## add file
$myzip[$zc]->add($l, $r);
## check adding
if($myzip[$zc]->result == 200) {
## log
$log->logging($lf, "Adding successful! Crypt file...");
## crypt file
$myzip[$zc]->cf($r);
## check crypt
if($myzip[$zc]->result == 200) {
## log
$log->logging($lf, "Crypting successful! Get stats of file...");
## get file stats
$myzip[$zc]->stats($r);
## check stats
if($myzip[$zc]->result == 200 && is_array($myzip[$zc]->fstats)) {
## log
$log->logging($lf, "Get stats successful! Checking zip size...");
## filesize
$rfs = $myzip[$zc]->fstats['size'];
## new zip size
$zs = $zs + $rfs;
## log
$log->logging($lf, "File in zip: ".$rfs." bytes | current zip size: ".$zs." bytes");
## check zip size with configured size
if($zs > $CFG['zipsize']) {
## log
$log->logging($lf, "Close zip and start new file (".$zc.")!");
## close zip
$myzip[$zc]->cz();
## check closing
if($myzip[$zc]->result == 200) {
## log
$log->logging($lf, "Closing successfully: ".$zipfile);
## counting up
$zc++;
## zipfile
$zipfile = $zp.date("Y-m-d")."-".str_pad($zc, 3, "0", STR_PAD_LEFT).".zip";
## start new zip file
$myzip[$zc] = new mfzip;
$myzip[$zc]->newzip($zipfile);
## check new file
if($myzip[$zc]->result == 200) {
## log
$log->logging($lf, "Create new zip file: ".$zipfile);
}
## set zip size to 0
$zs = 0;
} else {
## log
$log->logging($lf, "ERROR: Closing error: ".$zipfile);
break;
}
}
} else {
## log
$log->logging($lf, "ERROR: Can't get stats of file ".$r);
}
} else {
## log
$log->logging($lf, "ERROR: Can't crypt file: ".$r);
}
} else {
## log
$log->logging($lf, "ERROR: Can't adding file: ".$r);
}
} else {
## log
$log->logging($lf, "ERROR: Can't read file: ".$l);
}
}
} else {
## log
$log->logging($lf, "ERROR: Can't set password for zip file: ".$zipfile);
}
## log
$log->logging($lf, "Last closing file: ".$zipfile);
## close zip
$myzip[$zc]->cz();
## check closing
if($myzip[$zc]->result == 200) {
## log
$log->logging($lf, "Closing successfully!");
} else {
## log
$log->logging($lf, "ERROR: Closing error: ".$zipfile);
}
} else {
## log
$log->logging($lf, "ERROR: Creating zip file: ".$zipfile);
}
} else {
## log
$log->logging($lf, "ERROR: No backup pathes!");
}
Thats my zip class:
/**
* marcfunk zipping class
**/
class mfzip {
## vars
public $fstats;
public $result;
public $zip;
/**
* create zip archive
* #param: string, filename of zipfile
**/
public function newzip($filename = "") {
## check filename
if($filename !== "") {
## start zip class
$newzip = new ZipArchive();
## create archive
if($newzip->open($filename, ZipArchive::CREATE) === TRUE) {
## status code
$this->result = 200;
## zip class
$this->zip = $newzip;
} else {
$this->result = 900;
}
} else {
$this->result = 900;
}
}
/**
* set zip password
* #param: string, password for zip
**/
public function passzip($hash) {
$setpass = $this->zip;
if($setpass->setPassword($hash)) {
$this->result = 200;
} else {
$this->result = 900;
}
}
/**
* add file to archive
* #param: string, path to local file
* #param: string, path in zip file
**/
public function add($local = "", $remote = "") {
$addfile = $this->zip;
## check local
if($local !== "" && file_exists($local)) {
## check remote
if($remote !== "") {
## add file
if($addfile->addFile($local, $remote)) {
$this->result = 200;
} else {
$this->result = 900;
}
} else {
$this->result = 900;
}
} else {
$this->result = 900;
}
}
/**
* crypt file
* #param: string, path in zip file
**/
public function cf($remote = "") {
$encr = $this->zip;
## check remote
if($remote !== "") {
## crypt file
if($encr->setEncryptionName($remote, ZipArchive::EM_AES_256)) {
$this->result = 200;
} else {
$this->result = 900;
}
} else {
$this->result = 900;
}
}
/**
* stats of file
* #param: string, path in zip file
**/
public function stats($remote = "") {
$stats = $this->zip;
## check remote
if($remote !== "") {
## stats of file
if($this->fstats = $stats->statName($remote)) {
## result
$this->result = 200;
} else {
$this->result = 900;
}
} else {
$this->result = 900;
}
}
/**
* close zip
**/
public function cz() {
if($this->zip->close() === TRUE) {
$this->result = 200;
} else {
$this->result = 900;
}
}
}
I checked up, that the files are available and readable. I have also code a pause after the first close and before starting the second file. The first zip is okay and can extract, but he won't create the second file.