How to download a .gz file using curl? - php

Question

So I have written an Ajax call to download a file after clicking on download button so when I hit the API that I was using to get a file over CURL call which returns the file resource stream so if its a pdf then its fine i am using fopen and fwrite to write the data into a file and its working but when i try to get .gz file stream its not working i mean the .gz file is created but its nothing in that file also when i try to extract it gives me error i am using ubuntu 18.04 and Codeigniter 3
private function __curl(
$url,
$request = "POST",
$data = [],
$header = ["Content-Type: application/json"]
) {
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => $this->apiUrl . $url,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => $request,
CURLOPT_POSTFIELDS => !empty($data) ? json_encode($data) : "",
CURLOPT_HTTPHEADER => $header,
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
return $err;
} else {
$path = "path/to/file/".$fileName;
$fp = fopen($path, 'w');
fwrite($fp, $response);
fclose($fp);
}
}
so I am using this function to call the api and i get the .gz file as a response stream and I want to convert that stream to a as it .gz file with data in it and save it in given path.

Answer 1

You can download a .gz file using curl in php by using the following code:
<?php
// Initialize cURL session
$ch = curl_init();
// Set the URL of the file to be downloaded
curl_setopt($ch, CURLOPT_URL, 'http://example.com/file.gz');
// Set cURL to return the contents of the file as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// Execute cURL session and store the contents of the file into a variable
$data = curl_exec($ch);
// Close cURL session
curl_close($ch);
// Write data to local file
$fp = fopen('file.gz', 'w');
fwrite($fp, $data);
// Close local file handle
fclose($fp); ?>