PHP $argv processor - add support for single char arguments

argv.php

function args($item = '') {
        // Throw away the first one (name of script)
        $args = array_slice($GLOBALS['argv'],1);
        $ret  = array();

        for ($i = 0; $i < sizeof($args); $i++) {
                // If the item starts with "-" it's a key. Ignore items that are single dash words (-debug)
                if (preg_match("/^--?([a-zA-Z_]\w*)/",$args[$i],$m) && !preg_match("/^-\w\w/",$args[$i])) {
                        $key = $m[1];
                        // If the next item does not start with "--" it's the value for this item
                        if (!empty($args[$i + 1]) && !preg_match('/^--?\D/',$args[$i + 1])) {
                                $ret[$key] = $args[$i + 1];
                        // Bareword like --verbose with no options
                        } else {
                                empty($ret[$key]) ? $ret[$key] = 1 : $ret[$key]++;
                        }
                // Handle strings of chars like -cvpzf 'test.txt'
                } elseif (preg_match("/^-(\w\w+)/",$args[$i],$m)) {
                        $chars = str_split($m[1]);
                        foreach ($chars as $c) {
                                $ret[$c] = true;
                        }

                        // If the next arg is not a --option or -f it's value for the last char
                        if (!empty($args[$i + 1]) && !preg_match('/^--?\D/',$args[$i + 1])) {
                                $ret[$c] = $args[$i + 1];
                        }
                }
        }

        // If we're looking for a certain item
        if (!empty($item)) { return $ret[$item]; }

        return $ret;
}