latest php version linux code example

Example 1: php version command linux

# php -v
PHP 5.4.16 (cli) (built: Mar  7 2018 13:34:47) 
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies

Example 2: latest php version

<?php
$json = file_get_contents('https://www.php.net/releases/?json');

$releases = [];
if ($json) $releases = json_decode($json, true);

/**
 * Versions
Array
(
    [0] => 7
    [1] => 5
    [2] => 4
    [3] => 3
)
*/
$versions = array_keys($releases);

/** solution to: latest php version */
if (array_key_exists(max($versions), $releases)) {
  echo $releases[max($versions)]['version']; // as of Aug 2020.. 7.4.9
}