1. <?php
  3. /**
  4. * Checks the integrity of the runtime environment for maintenance.
  5. *
  6. * This script performs basic checks on PHP version, extensions, and file system permissions.
  7. */
  9. // PHP Version Check
  10. if (version_compare(phpversion(), '7.4', '<')) {
  11. error_log("PHP version is older than 7.4. Consider upgrading."); // Log to error log
  12. echo "PHP Version < 7.4 - Upgrade recommended.\n";
  13. exit(1); // Exit with an error code
  14. }
  16. // Required Extensions Check
  17. $requiredExtensions = ['mysqli', 'gd', 'curl', 'mbstring', 'xml'];
  18. foreach ($requiredExtensions as $extension) {
  19. if (!extension_loaded($extension)) {
  20. error_log("Extension '$extension' is missing. Please install it."); // Log to error log
  21. echo "Missing extension '$extension' - Please install.\n";
  22. exit(1); // Exit with an error code
  23. }
  24. }
  26. // File System Permissions Check (Example - adjust paths as needed)
  27. $allowedPermissions = 0755; //Read/write/execute for owner, read/execute for group/others
  29. if (!is_dir(__DIR__)) {
  30. error_log("Directory not found: " . __DIR__);
  31. echo "Directory not found: " . __DIR__ . "\n";
  32. exit(1);
  33. }
  35. $dir = __DIR__;
  36. $permissions = fileperms($dir);
  38. if ($permissions & $allowedPermissions) {
  39. echo "Directory permissions OK: " . $permissions . "\n";
  40. } else {
  41. error_log("Directory permissions are not correct for " . $dir);
  42. echo "Directory permissions are not correct for " . $dir . "\n";
  43. exit(1); // Exit with an error code
  44. }
  46. //Check for writable files
  47. $writable = writable(__DIR__ . '/maintenance_log.txt');
  48. if (!$writable) {
  49. error_log("Cannot write to maintenance log file.");
  50. echo "Cannot write to maintenance log file.\n";
  51. exit(1);
  52. }
  55. echo "Runtime environment integrity check completed successfully.\n";
  56. exit(0); // Exit with a success code
  58. ?>

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