PHP receive post from curl example.

receive_file.php

<?php

//include the file that loads the PhpSpreadsheet classes
require 'spreadsheet/vendor/autoload.php';

$secret_key = 'ddf9dcbb413630dd650a9615c921b12d1dbe3e203b8f5d4d08bef5e47cd88979';
$uploaddir 	= realpath('./') . '/';
$uploadfile = $uploaddir . basename($_FILES['phyle']['name']);
$filename 	= $_POST['prefix'].".csv";
$key 		= $_POST['key'];
$usl 		= $_POST['usl'];

if ($secret_key == $key) {
	echo '<pre>';
	if (move_uploaded_file($_FILES['phyle']['tmp_name'], $uploadfile)) {
	    echo "File is valid, and was successfully uploaded.\n";

	    // create directly an object instance of the IOFactory class, and load the xlsx file
		$spreadsheet = \PhpOffice\PhpSpreadsheet\IOFactory::load($uploadfile);

		// read excel data and store it into an array
		$xls_data = $spreadsheet->getActiveSheet()->toArray(null, true, true, true);

		// total numbder of rows 
		$nr = count($xls_data)-1;

		// writing rows csv format
		$handle = fopen($filename, "w");
		foreach($xls_data as $data) {
		  fputcsv($handle, $data);
		}
		fclose($handle) or die("Can't close php://output");

		if(file_exists('./'.$filename)){
			$file_name_with_full_path = realpath('./'.$filename);

			// send file to the usl
			$post = array('key'   => $secret_key,
		                  'phyle' => new CURLFile($file_name_with_full_path));
		 
		    $ch = curl_init();
			curl_setopt($ch, CURLOPT_URL,$usl);
			curl_setopt($ch, CURLOPT_POST,1);
			curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
		        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
			$result=curl_exec ($ch);
			curl_close ($ch);
			//echo $result;
		}

	} else {
	    echo "Possible file upload attack!\n";
	}
	

	echo 'Here is some more debugging info:';
	print_r($_FILES);
	echo "\n<hr />\n";
	print_r($_POST);
	print "</pr" . "e>\n";
	//echo($nr." has been imported successfully");
}


?>