1. <?php
  3. class OptionParser {
  5. private $options = [];
  7. public function addOption($short, $long, $type = null, $default = null, $description = null, $options = []) {
  8. // Store option details.
  9. $this->options[$short] = [
  10. 'long' => $long,
  11. 'type' => $type,
  12. 'default' => $default,
  13. 'description' => $description,
  14. 'options' => $options, // For nested options
  15. ];
  16. }
  18. public function parse($args) {
  19. $parsed = [];
  20. $args_copy = $args; //copy to avoid modifying original args
  22. $i = 0;
  23. while ($i < count($args_copy)) {
  24. $arg = $args_copy[$i];
  26. if ($arg[0] === '-') {
  27. $short = $arg[1];
  29. if (isset($this->options[$short])) {
  30. $option = $this->options[$short];
  32. if (isset($args_copy[$i + 1])) {
  33. $value = $args_copy[$i + 1];
  35. if ($option['type'] === 'bool') {
  36. $parsed[$short] = (bool) $value; // Convert to boolean
  37. } else {
  38. $parsed[$short] = $value;
  39. }
  40. $i += 2; // Consume option and value
  41. } else {
  42. if (isset($option['default'])) {
  43. $parsed[$short] = $option['default'];
  44. } else {
  45. throw new Exception("Missing value for option: --$short");
  46. }
  47. $i++;
  48. }
  50. } else {
  51. throw new Exception("Unknown option: --$short");
  52. }
  53. } else {
  54. $parsed[] = $arg; // Non-option arguments
  55. $i++;
  56. }
  57. }
  58. return $parsed;
  59. }
  60. }
  62. // Example Usage:
  63. $parser = new OptionParser();
  65. $parser->addOption('a', 'enable-feature', 'bool', false, 'Enable a feature', []);
  66. $parser->addOption('v', 'verbose', 'bool', false, 'Enable verbose output', []);
  67. $parser->addOption('l', 'log-file', null, null, 'Specify the log file', ['path' => '']);
  68. $parser->addOption('n', 'num-iterations', 'int', 10, 'Number of iterations', []);
  70. $arguments = ['-a', '-v', '--log-file', 'my_log.txt', '-n', '20'];
  72. try {
  73. $parsed_args = $parser->parse($arguments);
  75. print_r($parsed_args);
  77. echo "enable_feature: " . ($parsed_args['a'] ? 'true' : 'false') . "\n";
  78. echo "verbose: " . ($parsed_args['v'] ? 'true' : 'false') . "\n";
  79. echo "log_file: " . $parsed_args['log-file'] . "\n";
  80. echo "num_iterations: " . $parsed_args['num-iterations'] . "\n";
  81. } catch (Exception $e) {
  82. echo "Error: " . $e->getMessage() . "\n";
  83. }
  85. ?>

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