downloading zip file from curl results in cpgz file after unzipping - php

Question

I am trying to write some php (new to php) that downloads a zip file from a remote server using curl and unzips it to a wordpress theme directory. The unzipping through php is failing reporting a result of 19 which from what I've found indicates no zip file. However when I check the directory, the zip file is there. If I unzip it I end up with a zip.cpgz file. I'm not sure if this is a problem with my code or if it's a way the server is sending the file. Here's my code. Thanks.
$dirpath = dirname(__FILE__);
$themepath = substr($dirpath, 0, strrpos($dirpath, 'wp-content') + 10)."/themes/";
//make call to api to get site information
$pagedata = file_get_contents("https://ourwebsite/downloadzip.php?industryid=$industry");
$jsondata = json_decode($pagedata);
$fileToWrite = $themepath.basename($jsondata->zip_file_url);
$zipfile = curl_init();
curl_setopt($zipfile, CURLOPT_URL, $jsondata->zip_file_url);
curl_setopt($zipfile, CURLOPT_HEADER, 1);
curl_setopt($zipfile, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($zipfile, CURLOPT_BINARYTRANSFER, 1);
$file = curl_exec($zipfile);
if ($file == FALSE){
echo "FAILED";
}else{
$fileData = fopen($fileToWrite,"wb");
fputs($fileData,$file);
}
curl_close($zipfile);
if (file_exists($fileToWrite)){
$zip = new ZipArchive;
$res = $zip->open($fileToWrite);
if ($res === TRUE)
{
$zip->extractTo($themepath);
$zip->close();
echo 'Theme file has been extracted.';
}
else
{
echo 'There was a problem opening the theme zip file: '.$res;
}
}
else{
echo("There was an error downloading, writing or accessing the theme file.");
}

Answer 1

This should do it:
<?php
set_time_limit(0);
$industry = "industryid"; //replace this
$url = "https://ourwebsite/downloadzip.php?industryid=$industry";
$tmppath = "/tmp/tmpfile.zip";
$themdir = "/your/path/wp-content/themes/";
$fp = fopen ($tmppath, 'w+');//This is the file where we save the zip file
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_TIMEOUT, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_FILE, $fp); // write curl response to file
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_exec($ch); // get curl response
curl_close($ch);
fclose($fp);
if (file_exists($tmppath)){
$zip = new ZipArchive;
$res = $zip->open($tmppath);
if ($res === TRUE)
{
$zip->extractTo($themdir);
$zip->close();
echo 'Theme file has been extracted.';
}
else
{
echo 'There was a problem opening the theme zip file: '.$res;
}
}
else{
echo("There was an error downloading, writing or accessing the theme file.");
}
?>