check version of php

jvit

The first if statement checks the PHP_VERSION_ID value and determines whether or not it is below 70400. If it is, the http_response_code() function will return a 500 error. The second if statement tests if the PHP_VERSION_ID value is greater than or equal to 80200. If it is, the http_response_code() function will return a 500 error.

Shortcut: system.requireVersion

// Show warning if < PHP 7.4
if (PHP_VERSION_ID < 70400) {
  http_response_code(500);
  echo 'This version requires at least PHP 7.4<br/>';
  echo 'You are currently running ' . PHP_VERSION . '. Please update your PHP version.';
  exit(1);
}

// Show warning if >= PHP 8.2 is not compatible with >= PHP 8.2 for now
if (PHP_VERSION_ID >= 80200) {
  http_response_code(500);
  echo 'This version is not compatible with PHP>=8.2.<br/>';
  echo 'You are currently running ' . PHP_VERSION . '.';
  exit(1);
}