Introduction - Options

Пример 33-1. Calling a script with short and long options

# Using short options myphpscript -q -l en -o # Using long options instead myphpscript --quite --lang=en --option # Mixing both myphpscript -q --lang=en -o

You have to define which options you want to support. The second argument of getopt() requires a string containing all supported chars. For the example above this would be at least:

$shortoptions = "qlo";

The order of the characters is not important. Often you have to define options with (optional) parameters. To express that a option requires a parameter, you have to add a colon. If the parameter is optional, add a double colon, ie:

$shortoptions = "ql:o::";

this means the following script calls are permitted, ie.

myphpscript myphpscript -q myphpscript -q -l en myphpscript -o text myphpscript -o

whilst

myphpscript -l

is not permitted. The -l option requires a parameter, if the option is used.

The long options work equally, but they have to be defined in an array:

$longoptions = array("quite", "lang", "option");

For defining optional parameters, use '=' and '==' like the colon in short options.

$longoptions = array("quite", "lang=", "option==");