1. <?php
  3. /**
  4. * Backs up files specified by CLI arguments for validation.
  5. * Handles edge cases like missing arguments or invalid file paths.
  6. *
  7. * Usage: php backup_files.php <file1> <file2> ... <backup_dir>
  8. */
  10. if (count($argv) < 3) {
  11. echo "Usage: php backup_files.php <file1> <file2> ... <backup_dir>\n";
  12. exit(1); // Exit with an error code
  13. }
  15. $backupDir = $argv[count($argv) - 1]; // Last argument is the backup directory
  17. if (!is_dir($backupDir)) {
  18. if (!mkdir($backupDir, 0777, true)) {
  19. echo "Error: Could not create backup directory: $backupDir\n";
  20. exit(1);
  21. }
  22. }
  24. $filesToBackup = array_slice($argv, 1, count($argv) - 2); // Files to backup (all but the last argument)
  27. foreach ($filesToBackup as $file) {
  28. if (!file_exists($file)) {
  29. echo "Warning: File not found: $file\n";
  30. continue; // Skip to the next file
  31. }
  33. $backupFile = $backupDir . '/' . basename($file); // Backup file name
  35. if (file_put_contents($backupFile, file_get_contents($file)) === false) {
  36. echo "Error: Could not backup file: $file\n";
  37. } else {
  38. echo "Backed up: $file to $backupFile\n";
  39. }
  40. }
  42. echo "Backup process completed.\n";
  44. ?>

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