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Script Gone Wrong
05-16-2010
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GETOPT(3) 1 GETOPT(3) getopt - Gets options from the command line argument list SYNOPSIS
array getopt (string $options, [array $longopts]) DESCRIPTION
Parses options passed to the script. PARAMETERS
o $options - Each character in this string will be used as option characters and matched against options passed to the script starting with a single hyphen ( -). For example, an option string "x" recognizes an option -x. Only a-z, A-Z and 0-9 are allowed. o $longopts - An array of options. Each element in this array will be used as option strings and matched against options passed to the script starting with two hyphens ( --). For example, an longopts element "opt" recognizes an option --opt. The $options parameter may contain the following elements: oIndividual characters (do not accept values) oCharacters followed by a colon (parameter requires value) oCharacters followed by two colons (optional value) Option values are the first argument after the string. If a value is required, it does not matter whether the value has leading white space or not. See note. Note Optional values do not accept " " (space) as a separator. Note The format for the $options and $longopts is almost the same, the only difference is that $longopts takes an array of options (where each element is the option) whereas $options takes a string (where each character is the option). RETURN VALUES
This function will return an array of option / argument pairs or FALSE on failure. Note The parsing of options will end at the first non-option found, anything that follows is discarded. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | Added support for "=" as argument/value separa- | | | tor. | | | | | 5.3.0 | | | | | | | Added support for optional values (specified | | | with "::"). | | | | | 5.3.0 | | | | | | | Parameter $longopts is available on all systems. | | | | | 5.3.0 | | | | | | | This function is no longer system dependent, and | | | now works on Windows, too. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 getopt(3) example: The basics <?php // Script example.php $options = getopt("f:hp:"); var_dump($options); ?> shell> php example.php -fvalue -h The above example will output: array(2) { ["f"]=> string(5) "value" ["h"]=> bool(false) } Example #2 getopt(3) example: Introducing long options <?php // Script example.php $shortopts = ""; $shortopts .= "f:"; // Required value $shortopts .= "v::"; // Optional value $shortopts .= "abc"; // These options do not accept values $longopts = array( "required:", // Required value "optional::", // Optional value "option", // No value "opt", // No value ); $options = getopt($shortopts, $longopts); var_dump($options); ?> shell> php example.php -f "value for f" -v -a --required value --optional="optional value" --option The above example will output: array(6) { ["f"]=> string(11) "value for f" ["v"]=> bool(false) ["a"]=> bool(false) ["required"]=> string(5) "value" ["optional"]=> string(14) "optional value" ["option"]=> bool(false) } Example #3 getopt(3) example: Passing multiple options as one <?php // Script example.php $options = getopt("abc"); var_dump($options); ?> shell> php example.php -aaac The above example will output: array(2) { ["a"]=> array(3) { [0]=> bool(false) [1]=> bool(false) [2]=> bool(false) } ["c"]=> bool(false) } SEE ALSO
$argv. PHP Documentation Group GETOPT(3)