1. <?php
  3. /**
  4. * Cleans the runtime environment for scheduled runs, with fallback logic.
  5. *
  6. * @return bool True on success, false on failure.
  7. */
  8. function cleanRuntimeEnvironment(): bool
  9. {
  10. // Attempt to clear the opcache.
  11. if (opcache_reset() === false) {
  12. error_log("Failed to clear opcache: " . error_get_last()['message']);
  13. // Fallback: Try unloading all functions.
  14. unload_all_functions();
  15. if (opcache_reset() === false) {
  16. error_log("Failed to clear opcache after unloading functions: " . error_get_last()['message']);
  17. return false; //Final fallback failure
  18. }
  19. }
  21. // Unload all functions to ensure a clean state.
  22. unload_all_functions();
  24. // Clear the autoloader.
  25. spl_autoload_register(null);
  29. //Clear session data.
  30. session_unset();
  31. session_destroy();
  33. //Clear the error log
  34. if (file_put_contents('php_error.log', '') === false) {
  35. error_log("Failed to clear php_error.log: " . error_get_last()['message']);
  36. }
  39. return true;
  40. }
  43. /**
  44. * Unloads all functions.
  45. */
  46. function unload_all_functions(): void
  47. {
  48. $functions = get_declared_functions();
  49. foreach ($functions as $function) {
  50. if (function_exists($function)) {
  51. unload_function($function);
  52. }
  53. }
  54. }
  56. /**
  57. * Unloads a single function.
  58. *
  59. * @param string $function The name of the function to unload.
  60. */
  61. function unload_function(string $function): void
  62. {
  63. if (unload_function_by_name($function) === false) {
  64. error_log("Failed to unload function: " . $function);
  65. }
  66. }
  70. /**
  71. * Unloads a function by name.
  72. * @param string $functionName
  73. * @return bool
  74. */
  75. function unload_function_by_name(string $functionName): bool
  76. {
  77. $result = @unload_function($functionName);
  78. if ($result === false) {
  79. return false;
  80. }
  81. return true;
  82. }
  83. ?>

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