Description:
------------
Here is my PHP version

$ php -v

PHP 7.1.12 (cli) (built: Jan 10 2018 13:11:41) ( ZTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2017 Zend Technologies



Here is the output if I grep the info

$ php -i  | grep -i thread

System => Linux pthread 4.4.0-104-generic #127-Ubuntu SMP Mon Dec 11 12:16:42 UTC 2017 x86_64
Configure Command =>  './configure'  '--prefix=/usr/local/php71/' '--with-pear' '--disable-short-tags' '--with-openssl' '--with-pcre-regex' '--with-zlib' '--enable-bcmath' '--with-curl' '--enable-exif' '--with-gettext' '--enable-intl' '--enable-mbstring' '--with-mysqli' '--enable-pdo' '--with-pdo-mysql' '--enable-soap' '--enable-simplexml' '--enable-xml' '--with-xmlrpc' '--with-xsl' '--enable-zip' '--enable-mysqlnd' '--enable-maintainer-zts' '--with-pthreads'
Thread Safety => enabled



But, when I run a PHP script from command line that has used Threads I get the below fatal error.

Fatal error: Class 'Thread' not found in /home/<my folder path>/test1.php on line 2





Test script:
---------------
<?php
$task = new class extends Thread
{
    private $response;

    function run()
    {
        $content = file_get_contents("http://google.com");
        preg_match("~<title>(.+)</title>~", $content, $matches);
        $this->response = $matches[1];
    }
};

$task->start() && $task->join();

var_dump($task->response); // string(6) "Google"


Expected result:
----------------
string(6) "Google"

Actual result:
--------------
Fatal error: Class 'Thread' not found in /home/<my folder path>/test1.php on line 2