1. <?php
  3. /**
  4. * Synchronously replaces values in HTTP response for a one-off script.
  5. * This is intended for a single execution and not for persistent server-side modification.
  6. *
  7. * @param string $url The URL to fetch the response from.
  8. * @param array $replacements An associative array where keys are the values to replace
  9. * in the response and values are the replacement values.
  10. * @return string|false The modified response body on success, or false on failure.
  11. */
  12. function synchronousResponseReplacement(string $url, array $replacements): string|false
  13. {
  14. // Fetch the response content
  15. $response = file_get_contents($url);
  17. if ($response === false) {
  18. error_log("Error fetching URL: $url");
  19. return false; // Indicate failure
  20. }
  22. // Perform the replacements
  23. foreach ($replacements as $search => $replace) {
  24. $response = str_replace($search, $replace, $response);
  25. }
  27. return $response;
  28. }
  30. // Example usage:
  31. //$url = 'https://example.com';// Replace with your target URL.
  32. //$replacements = ['old_value' => 'new_value', 'another_old' => 'another_new'];
  34. //$modifiedResponse = synchronousResponseReplacement($url, $replacements);
  36. //if ($modifiedResponse !== false) {
  37. // echo $modifiedResponse; // Output the modified response
  38. //} else {
  39. // echo "Failed to modify response.";
  40. //}
  42. ?>

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