cmd.php

<?php
/**
* Handle common command line jobs
* like parsing cmd line options
*/
class CMD
{
  
  private function __construct() {
    # code...
  }
  
  /**
   * parse command line args if nothing is passed in use global $argv
   *
   * @param array $argv 
   * @return array
   */
  public static function parseArgs($argv = null) {
    if ($argv === null) {
      $argv = $GLOBALS['argv'];
    }
    array_shift($argv); // remove script name from front
    $out = array();
    foreach ($argv as $arg) {
      // handle options with double hypen followed by multiple characters
      if (substr($arg, 0, 2) == '--') {
        $eqPos = strpos($arg, '=');
        if ($eqPos === false) {
          // handle --key
          $key = substr($arg, 2);
          $out[$key] = isset($out[$key]) ? $out[$key] : true;
        } else {
          // handle --key=value
          $key = substr($arg, 2, $eqPos-2);
          $out[$key] = substr($arg, $eqPos+1);
        }
      } else if (substr($arg, 0, 1) == '-') {
        // handle options with single hyphen followed by one or more characters, each a single option
        if (substr($arg, 2, 1) == '=') {
          // handle -k=value
          $key = substr($arg, 1, 1);
          $out[$key] = substr($arg, 3);
        } else {
          // handle singfle letter switches -k
          // -kvm is the same as -k -v -m
          $chars = str_split(substr($arg, 1));
          foreach ($chars as $char) {
            $key = $char;
            $out[$key] = isset($out[$key]) ? $out[$key] : true;
          }
        }
      } else {
        // it's a string just place it in the next empty numeric array position
        $out[] = $arg;
      }
    }
    return $out;
  }
  
}

?>