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17 years ago
After getopt() of PHP5.3.0 (on Windows) ignored some parameters if there was a syntactical problem, I decided to code my own generic parameter parser.

<?php
    /**
     * Parses $GLOBALS['argv'] for parameters and assigns them to an array.
     *
     * Supports:
     * -e
     * -e <value>
     * --long-param
     * --long-param=<value>
     * --long-param <value>
     * <value>
     *
     * @param array $noopt List of parameters without values
     */
    function parseParameters($noopt = array()) {
        $result = array();
        $params = $GLOBALS['argv'];
        // could use getopt() here (since PHP 5.3.0), but it doesn't work relyingly
        reset($params);
        while (list($tmp, $p) = each($params)) {
            if ($p{0} == '-') {
                $pname = substr($p, 1);
                $value = true;
                if ($pname{0} == '-') {
                    // long-opt (--<param>)
                    $pname = substr($pname, 1);
                    if (strpos($p, '=') !== false) {
                        // value specified inline (--<param>=<value>)
                        list($pname, $value) = explode('=', substr($p, 2), 2);
                    }
                }
                // check if next parameter is a descriptor or a value
                $nextparm = current($params);
                if (!in_array($pname, $noopt) && $value === true && $nextparm !== false && $nextparm{0} != '-') list($tmp, $value) = each($params);
                $result[$pname] = $value;
            } else {
                // param doesn't belong to any option
                $result[] = $p;
            }
        }
        return $result;
    }
?>

A call like: php.exe -f test.php -- alfons -a 1 -b2 -c --d 2 --e=3=4 --f "alber t" hans wurst

and an in-program call parseParameters(array('f')); would yield in a resulting array:

Array
(
    [0] => alfons
    [a] => 1
    [b2] => 1
    [c] => 1
    [d] => 2
    [e] => 3=4
    [f] => 1
    [1] => alber t
    [2] => hans
    [3] => wurst
)

As you can see, values without an identifier are stored with numeric indexes. Existing identifiers without values get "true".
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