common/compatibility/Checker.php

   1 <?php
   2
   3 namespace OpenEMR;
   4
   5 /**
   6  * Check if the server's PHP version is compatible with OpenEMR.
   7  *
   8  * Note that this will only be used within setup.php, sql_upgrade.php,
   9  * sql_patch.php, acl_upgrade.php, admin.php, and globals.php.
  10  *
  11  * @package OpenEMR
  12  * @author  Matthew Vita <matthewvita48@gmail.com>
  13  * @link    http://www.open-emr.org
  14  * @license https://github.com/openemr/openemr/blob/master/LICENSE GNU General Public License 3
  15  * @copyright Copyright (c) 2017 Matthew Vita
  16  */
  17 class Checker
  18 {
  19     private static $minimumPhpVersion = "5.6.0";
  20
  21     private static function xlDelegate($value)
  22     {
  23         if (function_exists("xl")) {
  24             return xl($value);
  25         }
  26
  27         return $value;
  28     }
  29
  30     /**
  31      * Checks to see if minimum PHP version is met.
  32      *
  33      * @return bool | warning string
  34      */
  35     public static function checkPhpVersion()
  36     {
  37         $phpCheck = self::isPhpSupported();
  38         $response = "";
  39
  40         if (!$phpCheck) {
  41             $response .= self::xlDelegate("PHP version needs to be at least") . " " . self::$minimumPhpVersion . ".";
  42         } else {
  43             $response = true;
  44         }
  45
  46         return $response;
  47     }
  48
  49     /**
  50      * Checks to see if minimum PHP version is met.
  51      *
  52      * @return bool
  53      */
  54     private static function isPhpSupported()
  55     {
  56         return version_compare(phpversion(), self::$minimumPhpVersion, ">=");
  57     }
  58 }